diff --git a/crates/cli/src/commands/sbx/image/ls.rs b/crates/cli/src/commands/sbx/image/ls.rs
index 5169964c..6f4bb667 100644
--- a/crates/cli/src/commands/sbx/image/ls.rs
+++ b/crates/cli/src/commands/sbx/image/ls.rs
@@ -4,12 +4,17 @@ use crate::auth::context::CliContext;
 use crate::error::Result;
 use crate::output::table::new_table;
 
-pub async fn run(ctx: &CliContext) -> Result<()> {
+pub async fn run(ctx: &CliContext, output_json: bool) -> Result<()> {
     let (base_url, _, _) = super::templates_base_url(ctx)?;
     let client = ctx.client()?;
 
     let items = super::list_all_images(ctx, &client, &base_url).await?;
 
+    if output_json {
+        println!("{}", serde_json::to_string_pretty(&items)?);
+        return Ok(());
+    }
+
     if items.is_empty() {
         println!("No images found.");
         return Ok(());
diff --git a/crates/cli/src/main.rs b/crates/cli/src/main.rs
index 206925e6..8918d5d6 100644
--- a/crates/cli/src/main.rs
+++ b/crates/cli/src/main.rs
@@ -653,7 +653,11 @@ enum ImageCommands {
     },
 
     /// List all sandbox images
-    Ls,
+    Ls {
+        /// Print the sandbox image list as JSON to stdout
+        #[arg(long = "json", hide = true)]
+        json: bool,
+    },
 
     /// Show details for a sandbox image
     Describe {
@@ -1145,7 +1149,9 @@ async fn run_command(ctx: &mut CliContext, command: Commands) -> error::Result<(
                             )
                             .await
                         }
-                        ImageCommands::Ls => commands::sbx::image::ls::run(ctx).await,
+                        ImageCommands::Ls { json } => {
+                            commands::sbx::image::ls::run(ctx, json).await
+                        }
                         ImageCommands::Describe { name_or_id } => {
                             commands::sbx::image::describe::run(ctx, &name_or_id).await
                         }