DEVELOPER TOOLS · LOCAL ONLY
Convert between text and decimal ASCII codes.
Only characters in the 0-127 range are accepted; use the Unicode Converter for anything else.
Run the tool to see the result
Only characters in the 0-127 range are accepted; use the Unicode Converter for anything else.
How to use
Split text into space-separated decimal ASCII codes, or turn codes back into text, useful for protocol work, firmware, and teaching character tables. Characters above 127 are rejected explicitly, and only plain decimal integers are accepted so `0x41` is never silently misread.
Limits and privacy
Everything runs inside this browser. Your input is never uploaded, stored, or written to the URL or any log.