ASCII Converter
What is ASCII Converter?
ASCII Converter translates between plain text and ASCII character codes. Convert text into decimal, hexadecimal or binary codes, or paste codes back to reveal the original text. Developers, students and hobbyists use it for encoding checks, debugging and learning how computers store characters. The tool runs entirely in your browser and is free with no signup.
How to use
- Choose the direction: Text to ASCII or ASCII to Text.
- Pick the number format: decimal, hex or binary.
- Type or paste your text or codes into the input box.
- Copy the converted result with one click.
Features
- Converts text to decimal, hexadecimal or binary ASCII codes instantly.
- Decodes space or comma separated codes back into text.
- Clear error messages pinpoint invalid codes so you can fix them fast.
- Works entirely in your browser; your text never leaves your device.
- Copy result and clear input with one click.
- Free, private, and no signup required.
Frequently asked questions
How do I convert text to ASCII codes online?
Type or paste your text into the box, pick Decimal, Hex or Binary, and the codes appear instantly, separated by spaces.
What do the decimal, hex and binary options mean?
Decimal shows base-10 codes (A = 65), hex shows base-16 (A = 41), and binary shows 8-bit binary (A = 01000001). Pick the format your project needs.
Can I convert ASCII codes back to text?
Yes. Switch to ASCII to Text mode, paste your space or comma separated codes, choose the matching format, and the original text appears.
What happens if I enter an invalid code?
The tool shows a clear error message that names the bad code, for example a letter mixed into decimal codes, so you can correct it quickly.
Does it support characters beyond basic ASCII?
Decoding covers the standard 0 to 127 ASCII range. Characters outside this range are not valid ASCII and will be flagged as out of range.
Is this tool free?
Yes, it is free with no signup and no limits.