Misc-Tools/StringToHex.html at master · TekF/Misc-Tools · GitHub

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<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>StringToHex</title>
		<script>
			function StringToHex( string )
			{
				var decl = "uint[]( ";
				for ( i=0; i < string.length; i++ )
				{
					decl += "0x" + string.charCodeAt(i).toString(16)+"U";
					if ( i < string.length-1 )
						decl += ", ";
				}
				decl += " ) // length "+string.length.toString()+" = 0x"+string.length.toString(16);
				document.forms['myForm']['hex'].value = decl;

				var decl = "uint[]( ";
				for ( i=0; i < string.length; i+=4 )
				{
					decl += "0x"
						+ (
							(string.charCodeAt(i+3)||0)*0x01000000
							+ (string.charCodeAt(i+2)||0)*0x00010000
							+ (string.charCodeAt(i+1)||0)*0x00000100
							+ string.charCodeAt(i+0)
						).toString(16)
						+ "U";
					if ( i < string.length-4 )
						decl += ", ";
				}
				decl += " ) // length "+string.length.toString()+" = 0x"+string.length.toString(16);
				document.forms['myForm']['hex32'].value = decl;
			}
		</script>
	</head>
	<body>
		<!-- form passing textbox contents to StringToHex -->
		<form name="myForm">
			Input:<br>
			<textarea name="textbox" rows="5" cols="30"></textarea><br>
			<button type="button" onclick="return StringToHex(document.forms['myForm']['textbox'].value)">Submit</button><br>
			Bytes:<br>
			<textarea name="hex" rows="5" cols="30"></textarea><br>
			Packed in uint32:<br>
			<textarea name="hex32" rows="5" cols="30"></textarea>
		</form>
	</body>
</html>