diff --git a/.gitignore b/.gitignore
index b67d282..b95d981 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 /openmessages
+/om-bin
+.claude/launch.json
 *.db
 session.json
 .vercel/
diff --git a/internal/app/app.go b/internal/app/app.go
index 746d707..827820d 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -223,6 +223,13 @@ func New(logger zerolog.Logger) (*App, error) {
 				Msg("Repaired legacy Google Messages outgoing attribution rows")
 		}
 	}
+	// Drop conversations that a contentless stub (e.g. a group reaction arriving
+	// as an empty message in a 1:1 thread) wrongly floated to the top of recents.
+	if fixed, err := store.RepairContentlessRecency(); err != nil {
+		logger.Warn().Err(err).Msg("Failed to repair contentless conversation recency")
+	} else if fixed > 0 {
+		logger.Info().Int("fixed", fixed).Msg("Repaired conversations floated up by contentless messages")
+	}
 	if !Sandboxed() {
 		if mediaRepair, err := (&importer.WhatsAppNative{}).RepairLegacyMediaPlaceholders(store); err != nil {
 			logger.Warn().Err(err).Msg("Failed to repair legacy WhatsApp media placeholders")
diff --git a/internal/app/backfill.go b/internal/app/backfill.go
index a58bb47..33e839f 100644
--- a/internal/app/backfill.go
+++ b/internal/app/backfill.go
@@ -583,6 +583,7 @@ func (a *App) storeConversation(conv *gmproto.Conversation) error {
 			Name   string `json:"name"`
 			Number string `json:"number"`
 			IsMe   bool   `json:"is_me,omitempty"`
+			ID     string `json:"id,omitempty"` // participant ID, used to resolve reaction actors to names
 		}
 		var infos []pInfo
 		for _, p := range ps {
@@ -592,6 +593,7 @@ func (a *App) storeConversation(conv *gmproto.Conversation) error {
 			}
 			if id := p.GetID(); id != nil {
 				info.Number = id.GetNumber()
+				info.ID = id.GetParticipantID()
 			}
 			if info.Number == "" {
 				info.Number = p.GetFormattedNumber()
diff --git a/internal/client/client.go b/internal/client/client.go
index 386980b..26e8f57 100644
--- a/internal/client/client.go
+++ b/internal/client/client.go
@@ -118,10 +118,13 @@ func ExtractMediaInfo(msg *gmproto.Message) *MediaInfo {
 	return nil
 }
 
-// Reaction holds an emoji and how many people reacted with it.
+// Reaction holds an emoji, how many people reacted with it, and the participant
+// IDs of those reactors. Actors are Google Messages participant IDs that resolve
+// to names via the conversation's participant list (see SmallInfo.ParticipantID).
 type Reaction struct {
-	Emoji string `json:"emoji"`
-	Count int    `json:"count"`
+	Emoji  string   `json:"emoji"`
+	Count  int      `json:"count"`
+	Actors []string `json:"actors,omitempty"`
 }
 
 // ExtractReactions extracts reaction data from a protobuf Message.
@@ -138,9 +141,11 @@ func ExtractReactions(msg *gmproto.Message) []Reaction {
 			if emoji == "" {
 				continue
 			}
+			participantIDs := entry.GetParticipantIDs()
 			reactions = append(reactions, Reaction{
-				Emoji: emoji,
-				Count: len(entry.GetParticipantIDs()),
+				Emoji:  emoji,
+				Count:  len(participantIDs),
+				Actors: participantIDs,
 			})
 		}
 	}
diff --git a/internal/client/events.go b/internal/client/events.go
index ac4f32e..25256ff 100644
--- a/internal/client/events.go
+++ b/internal/client/events.go
@@ -120,7 +120,10 @@ func (h *EventHandler) handleMessage(evt *libgm.WrappedMessage) {
 		h.Logger.Error().Err(err).Str("msg_id", dbMsg.MessageID).Msg("Failed to store message")
 		return
 	}
-	if err := h.Store.BumpConversationTimestamp(dbMsg.ConversationID, dbMsg.TimestampMS); err != nil {
+	// Only real content advances inbox recency. A contentless stub (e.g. an
+	// emoji reaction made in a group that arrives as an empty message in the
+	// reactor's 1:1 thread) must not float that conversation to the top.
+	if err := h.Store.AdvanceConversationRecency(dbMsg); err != nil {
 		h.Logger.Warn().Err(err).Str("conv_id", dbMsg.ConversationID).Msg("Failed to update conversation timestamp from message")
 	}
 
@@ -170,6 +173,7 @@ func (h *EventHandler) storeConversation(conv *gmproto.Conversation) bool {
 			Name   string `json:"name"`
 			Number string `json:"number"`
 			IsMe   bool   `json:"is_me,omitempty"`
+			ID     string `json:"id,omitempty"` // participant ID, used to resolve reaction actors to names
 		}
 		var infos []pInfo
 		for _, p := range ps {
@@ -179,6 +183,7 @@ func (h *EventHandler) storeConversation(conv *gmproto.Conversation) bool {
 			}
 			if id := p.GetID(); id != nil {
 				info.Number = id.GetNumber()
+				info.ID = id.GetParticipantID()
 			}
 			if info.Number == "" {
 				info.Number = p.GetFormattedNumber()
diff --git a/internal/client/extract_test.go b/internal/client/extract_test.go
index 69f0d0b..f33ad9f 100644
--- a/internal/client/extract_test.go
+++ b/internal/client/extract_test.go
@@ -129,6 +129,13 @@ func TestExtractReactions_WithEmojis(t *testing.T) {
 	if reactions[1].Count != 1 {
 		t.Errorf("expected count 1, got %d", reactions[1].Count)
 	}
+	// Actors carry the reactor participant IDs so the UI can name who reacted.
+	if got := reactions[0].Actors; len(got) != 3 || got[0] != "p1" || got[1] != "p2" || got[2] != "p3" {
+		t.Errorf("expected actors [p1 p2 p3], got %v", got)
+	}
+	if got := reactions[1].Actors; len(got) != 1 || got[0] != "p1" {
+		t.Errorf("expected actors [p1], got %v", got)
+	}
 }
 
 func TestExtractReplyToID_None(t *testing.T) {
diff --git a/internal/db/conversations.go b/internal/db/conversations.go
index c17bafb..e2d1ffe 100644
--- a/internal/db/conversations.go
+++ b/internal/db/conversations.go
@@ -7,7 +7,7 @@ import (
 )
 
 // conversationColumns is the canonical column list for SELECT queries on conversations.
-const conversationColumns = `conversation_id, name, is_group, participants, last_message_ts, unread_count, source_platform, notification_mode`
+const conversationColumns = `conversation_id, name, is_group, participants, last_message_ts, unread_count, source_platform, notification_mode, tab`
 
 const (
 	NotificationModeAll      = "all"
@@ -76,7 +76,7 @@ func (s *Store) GetConversation(id string) (*Conversation, error) {
 	err := s.db.QueryRow(`
 		SELECT `+conversationColumns+`
 		FROM conversations WHERE conversation_id = ?
-	`, id).Scan(&c.ConversationID, &c.Name, &c.IsGroup, &c.Participants, &c.LastMessageTS, &c.UnreadCount, &c.SourcePlatform, &c.NotificationMode)
+	`, id).Scan(&c.ConversationID, &c.Name, &c.IsGroup, &c.Participants, &c.LastMessageTS, &c.UnreadCount, &c.SourcePlatform, &c.NotificationMode, &c.Tab)
 	if err != nil {
 		return nil, err
 	}
@@ -180,6 +180,44 @@ func (s *Store) SetConversationNotificationMode(id, mode string) error {
 	return err
 }
 
+// Built-in tab identifiers. "" is the implicit Recent (inbox) tab.
+const (
+	TabInbox   = ""        // Recent threads
+	TabArchive = "archive" // Archived threads
+)
+
+// SetConversationTab moves a single conversation into the given tab.
+// An empty tab returns it to Recent (inbox).
+func (s *Store) SetConversationTab(id, tab string) error {
+	_, err := s.db.Exec(`UPDATE conversations SET tab = ? WHERE conversation_id = ?`, strings.TrimSpace(tab), id)
+	return err
+}
+
+// SetConversationsTab moves multiple conversations into the given tab in one transaction.
+func (s *Store) SetConversationsTab(ids []string, tab string) error {
+	if len(ids) == 0 {
+		return nil
+	}
+	tab = strings.TrimSpace(tab)
+	tx, err := s.db.Begin()
+	if err != nil {
+		return err
+	}
+	stmt, err := tx.Prepare(`UPDATE conversations SET tab = ? WHERE conversation_id = ?`)
+	if err != nil {
+		tx.Rollback()
+		return err
+	}
+	defer stmt.Close()
+	for _, id := range ids {
+		if _, err := stmt.Exec(tab, id); err != nil {
+			tx.Rollback()
+			return err
+		}
+	}
+	return tx.Commit()
+}
+
 func (s *Store) ListConversations(limit int) ([]*Conversation, error) {
 	rows, err := s.db.Query(`
 		SELECT `+conversationColumns+`
@@ -257,7 +295,7 @@ func scanConversations(rows interface {
 	var convs []*Conversation
 	for rows.Next() {
 		c := &Conversation{}
-		if err := rows.Scan(&c.ConversationID, &c.Name, &c.IsGroup, &c.Participants, &c.LastMessageTS, &c.UnreadCount, &c.SourcePlatform, &c.NotificationMode); err != nil {
+		if err := rows.Scan(&c.ConversationID, &c.Name, &c.IsGroup, &c.Participants, &c.LastMessageTS, &c.UnreadCount, &c.SourcePlatform, &c.NotificationMode, &c.Tab); err != nil {
 			return nil, err
 		}
 		c.NotificationMode = normalizeStoredNotificationMode(c.NotificationMode)
@@ -271,7 +309,7 @@ func getConversationTx(tx *sql.Tx, id string) (*Conversation, error) {
 	err := tx.QueryRow(`
 		SELECT `+conversationColumns+`
 		FROM conversations WHERE conversation_id = ?
-	`, id).Scan(&c.ConversationID, &c.Name, &c.IsGroup, &c.Participants, &c.LastMessageTS, &c.UnreadCount, &c.SourcePlatform, &c.NotificationMode)
+	`, id).Scan(&c.ConversationID, &c.Name, &c.IsGroup, &c.Participants, &c.LastMessageTS, &c.UnreadCount, &c.SourcePlatform, &c.NotificationMode, &c.Tab)
 	if err != nil {
 		if err == sql.ErrNoRows {
 			return nil, nil
diff --git a/internal/db/db.go b/internal/db/db.go
index 6247d1d..e5d98d9 100644
--- a/internal/db/db.go
+++ b/internal/db/db.go
@@ -22,6 +22,7 @@ type Conversation struct {
 	UnreadCount    int
 	SourcePlatform string `json:"source_platform,omitempty"` // sms, gchat, imessage, whatsapp, signal, telegram
 	NotificationMode string `json:"notification_mode,omitempty"` // all, mentions, muted
+	Tab            string `json:"tab,omitempty"` // "" = Recent (inbox), "archive", or a custom tab id
 }
 
 type Message struct {
@@ -230,7 +231,15 @@ func (s *Store) migrate() error {
 		participants TEXT NOT NULL DEFAULT '[]',
 		last_message_ts INTEGER NOT NULL DEFAULT 0,
 		unread_count INTEGER NOT NULL DEFAULT 0,
-		notification_mode TEXT NOT NULL DEFAULT 'all'
+		notification_mode TEXT NOT NULL DEFAULT 'all',
+		tab TEXT NOT NULL DEFAULT ''
+	);
+
+	CREATE TABLE IF NOT EXISTS tabs (
+		tab_id TEXT PRIMARY KEY,
+		name TEXT NOT NULL DEFAULT '',
+		position INTEGER NOT NULL DEFAULT 0,
+		created_at INTEGER NOT NULL DEFAULT 0
 	);
 
 	CREATE TABLE IF NOT EXISTS messages (
@@ -282,6 +291,7 @@ func (s *Store) migrate() error {
 		"ALTER TABLE messages ADD COLUMN source_id TEXT NOT NULL DEFAULT ''",
 		"ALTER TABLE conversations ADD COLUMN source_platform TEXT NOT NULL DEFAULT 'sms'",
 		"ALTER TABLE conversations ADD COLUMN notification_mode TEXT NOT NULL DEFAULT 'all'",
+		"ALTER TABLE conversations ADD COLUMN tab TEXT NOT NULL DEFAULT ''",
 	} {
 		s.db.Exec(col) // ignore "duplicate column" errors
 	}
diff --git a/internal/db/recency.go b/internal/db/recency.go
new file mode 100644
index 0000000..7b61176
--- /dev/null
+++ b/internal/db/recency.go
@@ -0,0 +1,70 @@
+package db
+
+import "strings"
+
+// MessageHasContent reports whether a message carries real conversational
+// content. Empty placeholder/reaction-artifact messages — e.g. an emoji
+// reaction made in a group that arrives as an empty stub in the reactor's 1:1
+// thread, read receipts, or auto-download placeholders — have no body, media,
+// or reactions of their own and must never advance a conversation's recency.
+func MessageHasContent(m *Message) bool {
+	if m == nil {
+		return false
+	}
+	return strings.TrimSpace(m.Body) != "" ||
+		strings.TrimSpace(m.MediaID) != "" ||
+		strings.TrimSpace(m.Reactions) != ""
+}
+
+// AdvanceConversationRecency raises a conversation's last_message_ts to the
+// message's timestamp, but only when the message carries real content (see
+// MessageHasContent) and only ever forwards in time. Contentless messages are
+// ignored so they cannot float a conversation to the top of the inbox.
+func (s *Store) AdvanceConversationRecency(m *Message) error {
+	if !MessageHasContent(m) {
+		return nil
+	}
+	return s.BumpConversationTimestamp(m.ConversationID, m.TimestampMS)
+}
+
+// RepairContentlessRecency repairs conversations already corrupted by a
+// contentless message having advanced their recency. For each conversation
+// whose newest stored message is contentless AND is currently setting the
+// conversation's last_message_ts, it lowers last_message_ts to the newest
+// content-bearing message.
+//
+// Conversations whose recency comes from metadata (last_message_ts newer than
+// any stored message — typical when recent history hasn't been backfilled yet)
+// are intentionally left untouched, because that recency is legitimate. It
+// returns the number of conversations changed.
+func (s *Store) RepairContentlessRecency() (int, error) {
+	const contentPredicate = `(TRIM(body) != '' OR TRIM(COALESCE(media_id,'')) != '' OR TRIM(COALESCE(reactions,'')) != '')`
+	res, err := s.db.Exec(`
+		UPDATE conversations
+		SET last_message_ts = (
+			SELECT MAX(timestamp_ms) FROM messages m
+			WHERE m.conversation_id = conversations.conversation_id AND ` + contentPredicate + `
+		)
+		WHERE
+			-- a stored message is currently setting recency...
+			last_message_ts = (
+				SELECT MAX(timestamp_ms) FROM messages m
+				WHERE m.conversation_id = conversations.conversation_id
+			)
+			-- ...and that newest message is contentless (its ts is above the newest content message)...
+			AND last_message_ts > (
+				SELECT MAX(timestamp_ms) FROM messages m
+				WHERE m.conversation_id = conversations.conversation_id AND ` + contentPredicate + `
+			)
+			-- ...and at least one content-bearing message exists to drop down to.
+			AND EXISTS (
+				SELECT 1 FROM messages m
+				WHERE m.conversation_id = conversations.conversation_id AND ` + contentPredicate + `
+			)
+	`)
+	if err != nil {
+		return 0, err
+	}
+	n, err := res.RowsAffected()
+	return int(n), err
+}
diff --git a/internal/db/recency_test.go b/internal/db/recency_test.go
new file mode 100644
index 0000000..299b204
--- /dev/null
+++ b/internal/db/recency_test.go
@@ -0,0 +1,124 @@
+package db
+
+import "testing"
+
+// TestMessageHasContent pins down what counts as "real" conversational content.
+// Empty placeholder/reaction-artifact messages (no body, no media, no reactions)
+// must not be treated as content, so they never advance a conversation's recency.
+func TestMessageHasContent(t *testing.T) {
+	cases := []struct {
+		name string
+		msg  *Message
+		want bool
+	}{
+		{"nil", nil, false},
+		{"empty", &Message{}, false},
+		{"whitespace body only", &Message{Body: "   \n\t"}, false},
+		{"body", &Message{Body: "hello"}, true},
+		{"media only", &Message{MediaID: "media-123"}, true},
+		{"reactions only", &Message{Reactions: `[{"emoji":"👍","count":1}]`}, true},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			if got := MessageHasContent(tc.msg); got != tc.want {
+				t.Errorf("MessageHasContent = %v, want %v", got, tc.want)
+			}
+		})
+	}
+}
+
+// TestAdvanceConversationRecency is the core rule for the recents-ordering bug:
+// a contentless message (e.g. an emoji reaction in a *group* arriving as an
+// empty stub in the reactor's 1:1 thread) must NOT float that conversation up,
+// while a real message must, and recency must never move backwards.
+func TestAdvanceConversationRecency(t *testing.T) {
+	store := newTestStore(t)
+	if err := store.UpsertConversation(&Conversation{ConversationID: "c1", LastMessageTS: 1000}); err != nil {
+		t.Fatalf("seed conversation: %v", err)
+	}
+
+	tsOf := func() int64 {
+		c, err := store.GetConversation("c1")
+		if err != nil {
+			t.Fatalf("get conversation: %v", err)
+		}
+		return c.LastMessageTS
+	}
+
+	// A newer but contentless message must not advance recency.
+	if err := store.AdvanceConversationRecency(&Message{ConversationID: "c1", TimestampMS: 5000}); err != nil {
+		t.Fatalf("advance (contentless): %v", err)
+	}
+	if got := tsOf(); got != 1000 {
+		t.Errorf("contentless message advanced recency to %d, want 1000", got)
+	}
+
+	// A newer message with real content must advance recency.
+	if err := store.AdvanceConversationRecency(&Message{ConversationID: "c1", TimestampMS: 6000, Body: "hi"}); err != nil {
+		t.Fatalf("advance (content): %v", err)
+	}
+	if got := tsOf(); got != 6000 {
+		t.Errorf("content message did not advance recency: got %d, want 6000", got)
+	}
+
+	// Recency must never move backwards, even for a real older message.
+	if err := store.AdvanceConversationRecency(&Message{ConversationID: "c1", TimestampMS: 2000, Body: "old"}); err != nil {
+		t.Fatalf("advance (older content): %v", err)
+	}
+	if got := tsOf(); got != 6000 {
+		t.Errorf("older message moved recency backwards: got %d, want 6000", got)
+	}
+}
+
+// TestRepairContentlessRecency fixes conversations already corrupted by the bug:
+// when a conversation's recency is being held up by a contentless top message,
+// it should drop to its newest content-bearing message. Conversations whose
+// recency comes from metadata (newer than any stored message — e.g. history not
+// yet backfilled) must be left untouched.
+func TestRepairContentlessRecency(t *testing.T) {
+	store := newTestStore(t)
+
+	seed := func(convID string, lastTS int64, msgs []*Message) {
+		if err := store.UpsertConversation(&Conversation{ConversationID: convID, LastMessageTS: lastTS}); err != nil {
+			t.Fatalf("seed conversation %s: %v", convID, err)
+		}
+		for _, m := range msgs {
+			if err := store.UpsertMessage(m); err != nil {
+				t.Fatalf("seed message: %v", err)
+			}
+		}
+	}
+
+	// "phantom": top message is contentless and is setting recency -> should drop.
+	seed("phantom", 5000, []*Message{
+		{MessageID: "p-real", ConversationID: "phantom", Body: "hey", TimestampMS: 1000},
+		{MessageID: "p-empty", ConversationID: "phantom", Body: "", TimestampMS: 5000},
+	})
+	// "metadata": recency is ahead of all stored messages (backfill lag) -> untouched.
+	seed("metadata", 9000, []*Message{
+		{MessageID: "m-real", ConversationID: "metadata", Body: "yo", TimestampMS: 2000},
+	})
+	// "normal": recency already matches newest content -> unchanged.
+	seed("normal", 3000, []*Message{
+		{MessageID: "n-real", ConversationID: "normal", Body: "sup", TimestampMS: 3000},
+	})
+
+	n, err := store.RepairContentlessRecency()
+	if err != nil {
+		t.Fatalf("repair: %v", err)
+	}
+	if n != 1 {
+		t.Errorf("expected 1 conversation repaired, got %d", n)
+	}
+
+	want := map[string]int64{"phantom": 1000, "metadata": 9000, "normal": 3000}
+	for id, exp := range want {
+		c, err := store.GetConversation(id)
+		if err != nil {
+			t.Fatalf("get %s: %v", id, err)
+		}
+		if c.LastMessageTS != exp {
+			t.Errorf("%s: last_message_ts = %d, want %d", id, c.LastMessageTS, exp)
+		}
+	}
+}
diff --git a/internal/db/tabs.go b/internal/db/tabs.go
new file mode 100644
index 0000000..8f89f9c
--- /dev/null
+++ b/internal/db/tabs.go
@@ -0,0 +1,100 @@
+package db
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"fmt"
+	"strings"
+	"time"
+)
+
+// Tab is a user-created folder that conversations can be filed under.
+// The built-in Recent (inbox) and Archive tabs are implicit and not stored here.
+type Tab struct {
+	TabID     string `json:"tab_id"`
+	Name      string `json:"name"`
+	Position  int    `json:"position"`
+	CreatedAt int64  `json:"created_at"`
+}
+
+func newTabID() (string, error) {
+	buf := make([]byte, 8)
+	if _, err := rand.Read(buf); err != nil {
+		return "", err
+	}
+	return "tab_" + hex.EncodeToString(buf), nil
+}
+
+// CreateTab creates a new custom tab, appended after existing tabs.
+func (s *Store) CreateTab(name string) (*Tab, error) {
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return nil, fmt.Errorf("tab name is required")
+	}
+	id, err := newTabID()
+	if err != nil {
+		return nil, err
+	}
+	var maxPos *int
+	if err := s.db.QueryRow(`SELECT MAX(position) FROM tabs`).Scan(&maxPos); err != nil {
+		return nil, err
+	}
+	pos := 0
+	if maxPos != nil {
+		pos = *maxPos + 1
+	}
+	now := time.Now().UnixMilli()
+	if _, err := s.db.Exec(
+		`INSERT INTO tabs (tab_id, name, position, created_at) VALUES (?, ?, ?, ?)`,
+		id, name, pos, now,
+	); err != nil {
+		return nil, err
+	}
+	return &Tab{TabID: id, Name: name, Position: pos, CreatedAt: now}, nil
+}
+
+// ListTabs returns custom tabs ordered by position.
+func (s *Store) ListTabs() ([]*Tab, error) {
+	rows, err := s.db.Query(`SELECT tab_id, name, position, created_at FROM tabs ORDER BY position ASC, created_at ASC`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var tabs []*Tab
+	for rows.Next() {
+		t := &Tab{}
+		if err := rows.Scan(&t.TabID, &t.Name, &t.Position, &t.CreatedAt); err != nil {
+			return nil, err
+		}
+		tabs = append(tabs, t)
+	}
+	return tabs, rows.Err()
+}
+
+// RenameTab updates a custom tab's display name.
+func (s *Store) RenameTab(tabID, name string) error {
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return fmt.Errorf("tab name is required")
+	}
+	_, err := s.db.Exec(`UPDATE tabs SET name = ? WHERE tab_id = ?`, name, tabID)
+	return err
+}
+
+// DeleteTab removes a custom tab and returns any conversations filed under it to
+// Recent (inbox), so threads are never orphaned in a tab that no longer exists.
+func (s *Store) DeleteTab(tabID string) error {
+	tx, err := s.db.Begin()
+	if err != nil {
+		return err
+	}
+	if _, err := tx.Exec(`UPDATE conversations SET tab = '' WHERE tab = ?`, tabID); err != nil {
+		tx.Rollback()
+		return err
+	}
+	if _, err := tx.Exec(`DELETE FROM tabs WHERE tab_id = ?`, tabID); err != nil {
+		tx.Rollback()
+		return err
+	}
+	return tx.Commit()
+}
diff --git a/internal/web/api.go b/internal/web/api.go
index d64f7d2..fe7e27e 100644
--- a/internal/web/api.go
+++ b/internal/web/api.go
@@ -446,6 +446,31 @@ func APIHandlerWithOptions(store *db.Store, cli *client.Client, logger zerolog.L
 			writeJSON(w, convo)
 			return
 		}
+		if action == "tab" {
+			if r.Method != http.MethodPost && r.Method != http.MethodPatch {
+				httpError(w, "method not allowed", 405)
+				return
+			}
+			var req struct {
+				Tab string `json:"tab"`
+			}
+			if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+				httpError(w, "invalid JSON: "+err.Error(), 400)
+				return
+			}
+			if err := store.SetConversationTab(convID, req.Tab); err != nil {
+				httpError(w, "set tab: "+err.Error(), 400)
+				return
+			}
+			convo, err := store.GetConversation(convID)
+			if err != nil {
+				httpError(w, "get conversation: "+err.Error(), 500)
+				return
+			}
+			publishConversations()
+			writeJSON(w, convo)
+			return
+		}
 		if action != "messages" {
 			httpError(w, "not found", 404)
 			return
@@ -486,6 +511,99 @@ func APIHandlerWithOptions(store *db.Store, cli *client.Client, logger zerolog.L
 		writeJSON(w, msgs)
 	})
 
+	// Bulk-move multiple conversations into a tab ("" = Recent, "archive", or a custom tab id).
+	mux.HandleFunc("/api/conversations/move", func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			httpError(w, "method not allowed", 405)
+			return
+		}
+		var req struct {
+			IDs []string `json:"ids"`
+			Tab string   `json:"tab"`
+		}
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			httpError(w, "invalid JSON: "+err.Error(), 400)
+			return
+		}
+		if len(req.IDs) == 0 {
+			httpError(w, "ids is required", 400)
+			return
+		}
+		if err := store.SetConversationsTab(req.IDs, req.Tab); err != nil {
+			httpError(w, "move conversations: "+err.Error(), 400)
+			return
+		}
+		publishConversations()
+		writeJSON(w, map[string]any{"moved": len(req.IDs), "tab": strings.TrimSpace(req.Tab)})
+	})
+
+	// List (GET) or create (POST) custom tabs.
+	mux.HandleFunc("/api/tabs", func(w http.ResponseWriter, r *http.Request) {
+		switch r.Method {
+		case http.MethodGet:
+			tabs, err := store.ListTabs()
+			if err != nil {
+				httpError(w, "list tabs: "+err.Error(), 500)
+				return
+			}
+			if tabs == nil {
+				tabs = []*db.Tab{}
+			}
+			writeJSON(w, tabs)
+		case http.MethodPost:
+			var req struct {
+				Name string `json:"name"`
+			}
+			if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+				httpError(w, "invalid JSON: "+err.Error(), 400)
+				return
+			}
+			tab, err := store.CreateTab(req.Name)
+			if err != nil {
+				httpError(w, "create tab: "+err.Error(), 400)
+				return
+			}
+			publishConversations()
+			writeJSON(w, tab)
+		default:
+			httpError(w, "method not allowed", 405)
+		}
+	})
+
+	// Rename (POST) or delete (DELETE) a custom tab by id.
+	mux.HandleFunc("/api/tabs/", func(w http.ResponseWriter, r *http.Request) {
+		tabID := strings.TrimPrefix(r.URL.Path, "/api/tabs/")
+		if tabID == "" {
+			httpError(w, "tab id required", 400)
+			return
+		}
+		switch r.Method {
+		case http.MethodPost, http.MethodPatch:
+			var req struct {
+				Name string `json:"name"`
+			}
+			if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+				httpError(w, "invalid JSON: "+err.Error(), 400)
+				return
+			}
+			if err := store.RenameTab(tabID, req.Name); err != nil {
+				httpError(w, "rename tab: "+err.Error(), 400)
+				return
+			}
+			publishConversations()
+			writeJSON(w, map[string]any{"tab_id": tabID, "name": strings.TrimSpace(req.Name)})
+		case http.MethodDelete:
+			if err := store.DeleteTab(tabID); err != nil {
+				httpError(w, "delete tab: "+err.Error(), 400)
+				return
+			}
+			publishConversations()
+			writeJSON(w, map[string]any{"deleted": tabID})
+		default:
+			httpError(w, "method not allowed", 405)
+		}
+	})
+
 	mux.HandleFunc("/api/contacts", func(w http.ResponseWriter, r *http.Request) {
 		q := strings.TrimSpace(r.URL.Query().Get("q"))
 		limit := queryInt(r, "limit", 20)
diff --git a/internal/web/static/index.html b/internal/web/static/index.html
index 8c50a61..4ce1f98 100644
--- a/internal/web/static/index.html
+++ b/internal/web/static/index.html
@@ -2524,6 +2524,206 @@
   color: var(--text-muted);
 }
 
+/* ─── Tab bar (Recent / Archive / custom / +) ─── */
+.sidebar-tabs-row {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 4px 20px 12px;
+}
+
+.sidebar-tabs {
+  display: flex;
+  gap: 6px;
+  flex: 1 1 auto;
+  overflow-x: auto;
+  scrollbar-width: none;
+}
+
+.sidebar-tabs::-webkit-scrollbar { display: none; }
+
+.sidebar-tab {
+  flex: 0 0 auto;
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 7px 12px;
+  border: 1px solid var(--border);
+  border-radius: 999px;
+  background: var(--bg-elevated);
+  color: var(--text-secondary);
+  font-family: var(--font-sans);
+  font-size: 12px;
+  font-weight: 600;
+  cursor: pointer;
+  white-space: nowrap;
+  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease;
+}
+
+.sidebar-tab:hover {
+  background: var(--bg-hover);
+  color: var(--text-primary);
+}
+
+.sidebar-tab.active {
+  background: var(--accent-dim);
+  border-color: var(--border-accent);
+  color: var(--text-primary);
+}
+
+.sidebar-tab-count {
+  color: var(--text-muted);
+  font-size: 11px;
+}
+
+.sidebar-tab-add {
+  flex: 0 0 auto;
+  width: 28px;
+  height: 28px;
+  padding: 0;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border: 1px dashed var(--border);
+  border-radius: 50%;
+  background: transparent;
+  color: var(--text-secondary);
+  font-size: 16px;
+  line-height: 1;
+  cursor: pointer;
+  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
+}
+
+.sidebar-tab-add:hover {
+  background: var(--bg-hover);
+  color: var(--text-primary);
+  border-color: var(--border-accent);
+}
+
+.sidebar-tab-input {
+  flex: 0 0 auto;
+  width: 120px;
+  padding: 7px 12px;
+  border: 1px solid var(--border-accent);
+  border-radius: 999px;
+  background: var(--bg-elevated);
+  color: var(--text-primary);
+  font-family: var(--font-sans);
+  font-size: 12px;
+  font-weight: 600;
+  outline: none;
+}
+
+.select-toggle-btn {
+  flex: 0 0 auto;
+  padding: 7px 12px;
+  border: 1px solid var(--border);
+  border-radius: 999px;
+  background: var(--bg-elevated);
+  color: var(--text-secondary);
+  font-family: var(--font-sans);
+  font-size: 12px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
+}
+
+.select-toggle-btn:hover {
+  background: var(--bg-hover);
+  color: var(--text-primary);
+}
+
+.select-toggle-btn.active {
+  background: var(--accent-dim);
+  border-color: var(--border-accent);
+  color: var(--text-primary);
+}
+
+/* ─── Bulk action bar ─── */
+.bulk-bar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  margin: 0 20px 12px;
+  padding: 10px 14px;
+  border: 1px solid var(--border-accent);
+  border-radius: 14px;
+  background: var(--accent-dim);
+}
+
+.bulk-bar[hidden] { display: none; }
+
+.bulk-count {
+  font-size: 12px;
+  font-weight: 600;
+  color: var(--text-primary);
+}
+
+.bulk-bar-actions {
+  display: flex;
+  gap: 8px;
+}
+
+.bulk-btn {
+  padding: 7px 12px;
+  border: 1px solid var(--border);
+  border-radius: 999px;
+  background: var(--bg-elevated);
+  color: var(--text-secondary);
+  font-family: var(--font-sans);
+  font-size: 12px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
+}
+
+.bulk-btn:hover {
+  background: var(--bg-hover);
+  color: var(--text-primary);
+}
+
+.bulk-btn.primary {
+  background: var(--accent);
+  border-color: var(--accent);
+  color: #fff;
+}
+
+.bulk-btn.primary:hover {
+  background: var(--accent-strong);
+  border-color: var(--accent-strong);
+  color: #fff;
+}
+
+/* ─── Multi-select checkboxes on rows ─── */
+.convo-select-box {
+  flex: 0 0 auto;
+  width: 20px;
+  height: 20px;
+  margin-right: 10px;
+  border: 1.5px solid var(--text-muted);
+  border-radius: 6px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  color: transparent;
+  font-size: 12px;
+  font-weight: 700;
+  transition: background 0.14s ease, border-color 0.14s ease, color 0.14s ease;
+}
+
+.convo-item.selecting { cursor: pointer; }
+
+.convo-item.selected .convo-select-box {
+  background: var(--accent);
+  border-color: var(--accent);
+  color: #fff;
+}
+
+.convo-item.selected {
+  background: var(--accent-dim);
+}
+
 .sidebar-source-filters {
   display: flex;
   gap: 8px;
@@ -3122,7 +3322,9 @@
 
 .context-menu-section-label {
   padding: 4px 8px 8px;
-  color: var(--text-muted);
+  /* Menu background is always dark, so pin label text to a dim smokey white
+     instead of theme vars that flip to near-black in light mode. */
+  color: rgba(230, 233, 240, 0.55);
   font-family: var(--font-mono);
   font-size: 10px;
   letter-spacing: 0.12em;
@@ -3139,30 +3341,31 @@
   border: 0;
   border-radius: 10px;
   background: transparent;
-  color: var(--text-primary);
+  /* Smokey white — readable on the menu's always-dark background. */
+  color: #e6e9f0;
   font: inherit;
   text-align: left;
   cursor: pointer;
 }
 
 .context-menu-item:hover:not(:disabled) {
-  background: var(--bg-hover);
+  background: rgba(255, 255, 255, 0.07);
 }
 
 .context-menu-item:disabled {
-  color: var(--text-muted);
+  color: rgba(230, 233, 240, 0.38);
   cursor: default;
 }
 
 .context-menu-item-meta {
-  color: var(--text-muted);
+  color: rgba(230, 233, 240, 0.55);
   font-size: 12px;
 }
 
 .context-menu-divider {
   height: 1px;
   margin: 8px 4px;
-  background: var(--border);
+  background: rgba(255, 255, 255, 0.1);
 }
 
 .platform-chip {
@@ -4055,7 +4258,17 @@ <h1>OpenMessage</h1>
       <input type="text" id="search-input" placeholder="Search all messages" autocomplete="off" aria-label="Search all messages">
       <kbd class="search-shortcut" aria-hidden="true">⌘K</kbd>
     </div>
-    <div class="sidebar-section-label">Recent Threads</div>
+    <div class="sidebar-tabs-row">
+      <div class="sidebar-tabs" id="sidebar-tabs"></div>
+      <button class="select-toggle-btn" id="select-toggle-btn" type="button" title="Select threads to organize" aria-label="Select threads to organize">Select</button>
+    </div>
+    <div class="bulk-bar" id="bulk-bar" hidden>
+      <span class="bulk-count" id="bulk-count">0 selected</span>
+      <div class="bulk-bar-actions">
+        <button class="bulk-btn primary" id="bulk-move-btn" type="button">Move to…</button>
+        <button class="bulk-btn" id="bulk-cancel-btn" type="button">Cancel</button>
+      </div>
+    </div>
     <div class="sidebar-source-filters" id="sidebar-source-filters"></div>
     <div class="conversation-list" id="conversation-list"></div>
 
@@ -4262,6 +4475,11 @@ <h2 id="empty-state-title">No conversations yet</h2>
   let allConversations = [];
   let activeConversation = null;
   let currentPlatformFilter = 'all';
+  let customTabs = [];          // [{tab_id, name, position, created_at}]
+  let currentTab = '';          // '' = Recent (inbox), 'archive', or a custom tab id
+  const TAB_ARCHIVE = 'archive';
+  let selectionMode = false;
+  const selectedIds = new Set();
   let conversationsRefreshTimer = null;
   let eventSource = null;
   let threadFeedbackTimer = null;
@@ -4334,6 +4552,12 @@ <h2 id="empty-state-title">No conversations yet</h2>
   // ─── DOM refs ───
   const $convoList = document.getElementById('conversation-list');
   const $sourceFilters = document.getElementById('sidebar-source-filters');
+  const $sidebarTabs = document.getElementById('sidebar-tabs');
+  const $selectToggleBtn = document.getElementById('select-toggle-btn');
+  const $bulkBar = document.getElementById('bulk-bar');
+  const $bulkCount = document.getElementById('bulk-count');
+  const $bulkMoveBtn = document.getElementById('bulk-move-btn');
+  const $bulkCancelBtn = document.getElementById('bulk-cancel-btn');
   const $emptyState = document.getElementById('empty-state');
   const $chatHeader = document.getElementById('chat-header');
   const $chatHeaderAvatar = document.getElementById('chat-header-avatar');
@@ -4629,6 +4853,77 @@ <h2 id="empty-state-title">No conversations yet</h2>
       .trim();
   }
 
+  // Strip platform suffixes (e.g. "15551234567@s.whatsapp.net" -> "15551234567")
+  // for a last-resort human-ish label when no name can be resolved.
+  function formatReactorFallback(value) {
+    const raw = String(value || '').trim();
+    if (!raw) return '';
+    const head = raw.split('@')[0].trim();
+    return head || raw;
+  }
+
+  // Resolve a single reaction actor identifier to a display name.
+  // Actors are platform-specific: Google Messages participant IDs, WhatsApp JIDs,
+  // Signal accounts/numbers, or the literal "me".
+  function reactionActorName(actorId, convo) {
+    const raw = String(actorId || '').trim();
+    if (!raw) return '';
+    if (raw.toLowerCase() === 'me') return 'You';
+
+    const norm = normalizeParticipantIdentifier(raw);
+    const myWa = normalizeParticipantIdentifier((whatsAppStatus && whatsAppStatus.account_jid) || '');
+    const mySignal = normalizeParticipantIdentifier((signalStatus && signalStatus.account) || '');
+    if (norm && (norm === myWa || norm === mySignal)) return 'You';
+
+    const participants = conversationParticipants(convo);
+    // 1) Google Messages: exact participant-ID match.
+    for (const p of participants) {
+      if (p && p.id && String(p.id).trim() === raw) {
+        if (p.is_me) return 'You';
+        return p.name || formatReactorFallback(p.number) || formatReactorFallback(raw);
+      }
+    }
+    // 2) Match by number/JID digits.
+    if (norm) {
+      for (const p of participants) {
+        const pn = normalizeParticipantIdentifier((p && (p.number || p.id)) || '');
+        if (pn && pn === norm) {
+          if (p.is_me) return 'You';
+          return p.name || formatReactorFallback(p.number) || formatReactorFallback(raw);
+        }
+      }
+    }
+    // 3) 1:1 fallback: the only non-me reactor is the other party.
+    if (convo && !convo.IsGroup) {
+      const others = participants.filter(p => p && !p.is_me);
+      if (others.length === 1 && (others[0].name || others[0].number)) {
+        return others[0].name || formatReactorFallback(others[0].number);
+      }
+      const convoName = String(convo.Name || '').trim();
+      if (convoName) return convoName;
+    }
+    // 4) Last resort.
+    return formatReactorFallback(raw) || 'Someone';
+  }
+
+  // Build the hover tooltip text for a reaction pill: the reactor names, or a
+  // count fallback when reactor identities aren't available (older/historical data).
+  function reactionTooltip(reaction, convo) {
+    const count = Number(reaction && reaction.count) || 0;
+    const actors = Array.isArray(reaction && reaction.actors) ? reaction.actors : [];
+    if (actors.length) {
+      const names = [];
+      const seen = new Set();
+      actors.forEach(a => {
+        const name = reactionActorName(a, convo);
+        const key = name.toLowerCase();
+        if (name && !seen.has(key)) { seen.add(key); names.push(name); }
+      });
+      if (names.length) return names.join(', ');
+    }
+    return `${count} reaction${count !== 1 ? 's' : ''}`;
+  }
+
   function normalizeParticipantIdentifier(value) {
     const raw = String(value || '').trim().toLowerCase();
     if (!raw) return '';
@@ -5196,6 +5491,232 @@ <h2 id="empty-state-title">No conversations yet</h2>
     return convos.filter(c => sourcePlatformOf(c) === currentPlatformFilter);
   }
 
+  // ─── Tabs (Recent / Archive / custom folders) ───
+  function conversationTabOf(convo) {
+    if (!convo) return '';
+    return String(convo.Tab || convo.tab || '').trim();
+  }
+
+  function filterConversationsByTab(convos) {
+    return convos.filter(c => conversationTabOf(c) === currentTab);
+  }
+
+  function tabById(id) {
+    return customTabs.find(t => t.tab_id === id) || null;
+  }
+
+  function tabDisplayName(tab) {
+    if (tab === '') return 'Recent';
+    if (tab === TAB_ARCHIVE) return 'Archive';
+    const t = tabById(tab);
+    return t ? t.name : 'tab';
+  }
+
+  function renderTabs() {
+    if (!$sidebarTabs) return;
+    const counts = new Map();
+    allConversations.forEach(c => {
+      const t = conversationTabOf(c);
+      counts.set(t, (counts.get(t) || 0) + 1);
+    });
+    const tabs = [
+      { id: '', label: 'Recent' },
+      { id: TAB_ARCHIVE, label: 'Archive' },
+      ...customTabs.map(t => ({ id: t.tab_id, label: t.name, custom: true })),
+    ];
+    $sidebarTabs.innerHTML = tabs.map(tab => {
+      const count = counts.get(tab.id) || 0;
+      const countHTML = count ? `<span class="sidebar-tab-count">${count}</span>` : '';
+      return `<button type="button" class="sidebar-tab${tab.id === currentTab ? ' active' : ''}" data-tab="${escapeHtml(tab.id)}"${tab.custom ? ' data-custom="1"' : ''}>
+        <span>${escapeHtml(tab.label)}</span>${countHTML}
+      </button>`;
+    }).join('') + `<button type="button" class="sidebar-tab-add" id="sidebar-tab-add" title="Create a new tab" aria-label="Create a new tab">+</button>`;
+
+    $sidebarTabs.querySelectorAll('.sidebar-tab').forEach(btn => {
+      btn.addEventListener('click', () => setCurrentTab(btn.dataset.tab || ''));
+      if (btn.dataset.custom === '1') {
+        btn.addEventListener('contextmenu', (event) => {
+          event.preventDefault();
+          openContextMenu(event, [
+            { label: 'Rename tab', action: 'rename-tab' },
+            { label: 'Delete tab', action: 'delete-tab' },
+          ], { type: 'tab', tabId: btn.dataset.tab || '' });
+        });
+      }
+    });
+    const addBtn = document.getElementById('sidebar-tab-add');
+    if (addBtn) addBtn.addEventListener('click', startCreateTab);
+  }
+
+  function setCurrentTab(tab) {
+    if (currentTab === tab) return;
+    currentTab = tab;
+    if (activeConversation && conversationTabOf(activeConversation) !== currentTab) {
+      deselectConversation();
+    }
+    if (selectionMode) exitSelectionMode();
+    const q = $searchInput.value.trim();
+    if (q) { renderSearchResults(q).catch(err => console.error('Search failed:', err)); return; }
+    renderConversations(allConversations);
+  }
+
+  async function loadTabs() {
+    try {
+      const tabs = await fetchJSON('/api/tabs');
+      customTabs = Array.isArray(tabs) ? tabs : [];
+    } catch (err) {
+      console.error('Failed to load tabs:', err);
+      customTabs = [];
+    }
+    if (currentTab && currentTab !== TAB_ARCHIVE && !tabById(currentTab)) {
+      currentTab = '';
+    }
+    renderTabs();
+  }
+
+  function startCreateTab() {
+    const addBtn = document.getElementById('sidebar-tab-add');
+    if (!addBtn) return;
+    const input = document.createElement('input');
+    input.type = 'text';
+    input.className = 'sidebar-tab-input';
+    input.placeholder = 'Tab name';
+    input.maxLength = 40;
+    addBtn.replaceWith(input);
+    input.focus();
+    let done = false;
+    const commit = async () => {
+      if (done) return;
+      done = true;
+      const name = input.value.trim();
+      if (!name) { renderTabs(); return; }
+      try {
+        const tab = await postJSON('/api/tabs', { name });
+        if (tab && tab.tab_id) {
+          customTabs.push(tab);
+          currentTab = tab.tab_id;
+        }
+      } catch (err) {
+        console.error('Failed to create tab:', err);
+        showThreadFeedback(err.message || 'Failed to create tab.');
+      }
+      renderConversations(allConversations);
+    };
+    input.addEventListener('keydown', (e) => {
+      if (e.key === 'Enter') { e.preventDefault(); commit(); }
+      else if (e.key === 'Escape') { done = true; renderTabs(); }
+    });
+    input.addEventListener('blur', commit);
+  }
+
+  async function renameTabFlow(tabId) {
+    const tab = tabById(tabId);
+    if (!tab) return;
+    const name = window.prompt('Rename tab', tab.name);
+    if (name === null) return;
+    const trimmed = name.trim();
+    if (!trimmed) return;
+    try {
+      await postJSON(`/api/tabs/${encodeURIComponent(tabId)}`, { name: trimmed });
+      tab.name = trimmed;
+      renderTabs();
+    } catch (err) {
+      console.error('Failed to rename tab:', err);
+      showThreadFeedback(err.message || 'Failed to rename tab.');
+    }
+  }
+
+  async function deleteTabFlow(tabId) {
+    const tab = tabById(tabId);
+    if (!tab) return;
+    if (!window.confirm(`Delete "${tab.name}"? Its threads return to Recent.`)) return;
+    try {
+      const r = await fetch(API + `/api/tabs/${encodeURIComponent(tabId)}`, { method: 'DELETE' });
+      if (!r.ok) throw new Error(await responseError(r));
+      customTabs = customTabs.filter(t => t.tab_id !== tabId);
+      if (currentTab === tabId) currentTab = '';
+      await loadConversations();
+    } catch (err) {
+      console.error('Failed to delete tab:', err);
+      showThreadFeedback(err.message || 'Failed to delete tab.');
+    }
+  }
+
+  // ─── Moving conversations between tabs ───
+  function tabMoveMenuItems(excludeTab) {
+    const targets = [
+      { id: '', label: 'Move to Recent' },
+      { id: TAB_ARCHIVE, label: 'Archive' },
+      ...customTabs.map(t => ({ id: t.tab_id, label: `Move to: ${t.name}` })),
+    ];
+    return targets
+      .filter(t => t.id !== excludeTab)
+      .map(t => ({ label: t.label, action: `move-tab:${t.id}` }));
+  }
+
+  async function moveConversationToTab(convo, tab) {
+    if (!convo) return;
+    await postJSON(`/api/conversations/${encodeURIComponent(convo.ConversationID)}/tab`, { tab });
+    applyConversationPatch(convo.ConversationID, { Tab: tab, tab });
+    if (activeConversation && activeConversation.ConversationID === convo.ConversationID && tab !== currentTab) {
+      deselectConversation();
+    }
+    renderConversations(allConversations);
+    showThreadFeedback(tab === TAB_ARCHIVE ? 'Moved to Archive.' : `Moved to ${tabDisplayName(tab)}.`);
+  }
+
+  async function moveSelectedToTab(tab) {
+    const ids = Array.from(selectedIds);
+    if (!ids.length) return;
+    try {
+      await postJSON('/api/conversations/move', { ids, tab });
+      ids.forEach(id => applyConversationPatch(id, { Tab: tab, tab }));
+      const n = ids.length;
+      exitSelectionMode();
+      showThreadFeedback(`Moved ${n} thread${n === 1 ? '' : 's'} to ${tabDisplayName(tab)}.`);
+    } catch (err) {
+      console.error('Failed to move conversations:', err);
+      showThreadFeedback(err.message || 'Failed to move threads.');
+    }
+  }
+
+  // ─── Multi-select ───
+  function enterSelectionMode() {
+    selectionMode = true;
+    selectedIds.clear();
+    if ($selectToggleBtn) $selectToggleBtn.classList.add('active');
+    updateBulkBar();
+    renderConversations(allConversations);
+  }
+
+  function exitSelectionMode() {
+    selectionMode = false;
+    selectedIds.clear();
+    if ($selectToggleBtn) $selectToggleBtn.classList.remove('active');
+    updateBulkBar();
+    renderConversations(allConversations);
+  }
+
+  function toggleSelectionMode() {
+    if (selectionMode) exitSelectionMode();
+    else enterSelectionMode();
+  }
+
+  function updateBulkBar() {
+    if (!$bulkBar) return;
+    if (!selectionMode) { $bulkBar.hidden = true; return; }
+    $bulkBar.hidden = false;
+    const n = selectedIds.size;
+    if ($bulkCount) $bulkCount.textContent = `${n} selected`;
+    if ($bulkMoveBtn) $bulkMoveBtn.disabled = n === 0;
+  }
+
+  function openBulkMoveMenu() {
+    if (!$bulkMoveBtn || selectedIds.size === 0) return;
+    const rect = $bulkMoveBtn.getBoundingClientRect();
+    openContextMenuAt(rect.left, rect.bottom + 8, tabMoveMenuItems(currentTab), { type: 'bulk-move' });
+  }
+
   function platformFilterOptions(convos) {
     const counts = new Map();
     convos.forEach(c => {
@@ -5242,7 +5763,7 @@ <h2 id="empty-state-title">No conversations yet</h2>
   }
 
   function buildConversationRenderItems(convos, isSearch) {
-    if (isSearch) {
+    if (isSearch || selectionMode) {
       return convos.map(convo => ({ type: 'conversation', convo }));
     }
     const items = [];
@@ -5289,6 +5810,10 @@ <h2 id="empty-state-title">No conversations yet</h2>
       + (c.ConversationID === activeConvoId ? ' active' : '')
       + (hasUnread ? ' unread' : '');
     el.dataset.id = c.ConversationID;
+    if (selectionMode) {
+      el.classList.add('selecting');
+      if (selectedIds.has(c.ConversationID)) el.classList.add('selected');
+    }
     if (clustered) {
       el.innerHTML = `
         <div class="convo-route-badge">${platformBadgeHTML(platform)}</div>
@@ -5320,6 +5845,23 @@ <h2 id="empty-state-title">No conversations yet</h2>
         ${hasUnread ? '<div class="convo-unread">' + c.UnreadCount + '</div>' : ''}
       `;
     }
+    if (selectionMode) {
+      const box = document.createElement('div');
+      box.className = 'convo-select-box';
+      box.textContent = '✓';
+      el.insertBefore(box, el.firstChild);
+      el.addEventListener('click', () => {
+        const id = c.ConversationID;
+        if (selectedIds.has(id)) selectedIds.delete(id);
+        else selectedIds.add(id);
+        el.classList.toggle('selected', selectedIds.has(id));
+        updateBulkBar();
+      });
+      el.addEventListener('contextmenu', (event) => {
+        openContextMenu(event, conversationContextMenuItems(c), { type: 'conversation', conversation: c });
+      });
+      return el;
+    }
     el.addEventListener('click', () => selectConversation(c));
     el.addEventListener('contextmenu', (event) => {
       openContextMenu(event, conversationContextMenuItems(c), { type: 'conversation', conversation: c });
@@ -6001,6 +6543,10 @@ <h2 id="empty-state-title">No conversations yet</h2>
         action: 'leave-whatsapp-group',
       });
     }
+    items.push(
+      { type: 'divider' },
+      ...tabMoveMenuItems(conversationTabOf(convo)),
+    );
     items.push(
       { type: 'divider' },
       ...conversationNotificationMenuItems(convo),
@@ -6190,13 +6736,19 @@ <h2 id="empty-state-title">No conversations yet</h2>
       allConversations = convos;
     }
     renderEmptyState();
-    renderPlatformFilters(convos);
-    const visibleConvos = filterConversationsByPlatform(convos);
+    renderTabs();
+    const tabConvos = isSearch ? convos : filterConversationsByTab(convos);
+    renderPlatformFilters(tabConvos);
+    const visibleConvos = filterConversationsByPlatform(tabConvos);
     conversations = visibleConvos;
     $convoList.innerHTML = '';
     if (!visibleConvos.length) {
       let emptyMsg = isSearch ? 'No results found' : 'No conversations yet';
-      if (currentPlatformFilter !== 'all') {
+      if (!isSearch && currentTab) {
+        emptyMsg = currentTab === TAB_ARCHIVE
+          ? 'No archived threads'
+          : `No threads in “${tabDisplayName(currentTab)}” yet`;
+      } else if (currentPlatformFilter !== 'all') {
         emptyMsg = isSearch
           ? `No ${platformMeta(currentPlatformFilter).label} results found`
           : `No ${platformMeta(currentPlatformFilter).label} conversations`;
@@ -6929,8 +7481,8 @@ <h2 id="empty-state-title">No conversations yet</h2>
               reactions.forEach(r => {
                 const count = Number(r.count) || 0;
                 const emoji = escapeHtml(r.emoji || '');
-                const countLabel = escapeHtml(`${count} reaction${count > 1 ? 's' : ''}`);
-                html += `<span class="reaction-pill" title="${countLabel}">${emoji}<span class="reaction-count">${count > 1 ? count : ''}</span></span>`;
+                const tip = escapeHtml(reactionTooltip(r, activeConversation));
+                html += `<span class="reaction-pill" title="${tip}">${emoji}<span class="reaction-count">${count > 1 ? count : ''}</span></span>`;
               });
               html += '</div>';
             }
@@ -8270,7 +8822,7 @@ <h2 id="empty-state-title">No conversations yet</h2>
       document.querySelectorAll('.emoji-picker.show').forEach(p => p.classList.remove('show'));
       document.querySelectorAll('.emoji-full-panel.show').forEach(p => p.classList.remove('show'));
     }
-    if ($contextMenu && !$contextMenu.hidden && !e.target.closest('.context-menu') && !e.target.closest('.chat-header-action-btn')) {
+    if ($contextMenu && !$contextMenu.hidden && !e.target.closest('.context-menu') && !e.target.closest('.chat-header-action-btn') && !e.target.closest('#bulk-move-btn')) {
       closeContextMenu();
     }
   });
@@ -8306,6 +8858,18 @@ <h2 id="empty-state-title">No conversations yet</h2>
             showThreadFeedback(`Notifications set to ${notificationModeLabel(mode).toLowerCase()}.`);
             return;
           }
+          if (action.startsWith('move-tab:')) {
+            await moveConversationToTab(context.conversation, action.slice('move-tab:'.length));
+            return;
+          }
+        }
+        if (context.type === 'bulk-move' && action.startsWith('move-tab:')) {
+          await moveSelectedToTab(action.slice('move-tab:'.length));
+          return;
+        }
+        if (context.type === 'tab' && context.tabId) {
+          if (action === 'rename-tab') { await renameTabFlow(context.tabId); return; }
+          if (action === 'delete-tab') { await deleteTabFlow(context.tabId); return; }
         }
         if (context.type === 'message' && context.message) {
           const message = context.message;
@@ -8869,7 +9433,11 @@ <h2 id="empty-state-title">No conversations yet</h2>
     .then(() => syncNotificationButton())
     .catch(err => console.error('Failed to initialize native notifications:', err));
   renderEmptyState();
+  if ($selectToggleBtn) $selectToggleBtn.addEventListener('click', toggleSelectionMode);
+  if ($bulkCancelBtn) $bulkCancelBtn.addEventListener('click', exitSelectionMode);
+  if ($bulkMoveBtn) $bulkMoveBtn.addEventListener('click', openBulkMoveMenu);
   startEventStream();
+  loadTabs();
   loadConversations();
   checkStatus();