ASCII Code Converter
Convert text to decimal, hex or binary ASCII codes — and back.
See how it works
Watch a quick simulation of this tool in action — no file needed.
How to use ASCII Code Converter
Follow these steps — everything happens instantly in your browser.
- 1
Step 1. Type or paste your text into the input box.
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Step 2. Pick a format — decimal, hex, or binary — and a separator (space, comma, newline, etc.).
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Step 3. Read the converted codes in the output box and hit Copy.
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Step 4. Hit Swap to flip the direction and decode codes back to text.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about ascii code converter.
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