ASCII to Hex Converter
Convert ASCII characters to hex codes and back
ASCII to Hex Converter is a free online tool from BrowserUtils that convert ascii characters to hex codes and back. It runs entirely in your browser — your data never leaves your device. No account required.
How to use ASCII to Hex Converter
- 1 Paste or type your input into the editor above.
- 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3 Copy the result with one click or continue editing your input.
About ASCII to Hex Converter
Free online ASCII to hex converter. View the hexadecimal code for each ASCII character or convert hex codes back to ASCII text. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
ASCII to Hex Converter specs
- Runtime
- 100% client-side (browser)
- Built on
- TextEncoder, TextDecoder, btoa/atob, and encodeURIComponent — all Web Platform APIs
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
What is ASCII?
ASCII (American Standard Code for Information Interchange) assigns a numeric code to 128 characters including letters, digits, punctuation, and control characters.
How is this different from Hex to Text?
This tool shows the individual ASCII code for each character along with decimal and octal representations, while Hex to Text focuses on simple hex-string conversion.
What is the hex code for a space character?
The space character has ASCII code 32 in decimal, which is 20 in hexadecimal. It is the first printable ASCII character.
Can I look up control characters?
Yes, the tool displays all 128 ASCII characters including control characters (codes 0-31) like NULL, TAB, LF (line feed), and CR (carriage return).
What is the difference between ASCII and UTF-8?
ASCII defines 128 characters using 7 bits. UTF-8 is backward-compatible with ASCII for those 128 characters but extends to support over a million Unicode characters using 1-4 bytes per character.
How do I find the ASCII code for a specific character?
Type or paste the character into the input field and the tool will display its decimal, hexadecimal, and octal ASCII code values.
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