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String to Hex Converter

Convert text to UTF-8 hex bytes and back. Pick from five separators on encode; decode auto-strips any common separator.

Free No signup Client-side Privacy friendly

How to use

  1. 1 Pick Text → Hex or Hex → Text.
  2. 2 Choose a separator on encode — space, none, 0x, \x, or comma.
  3. 3 Paste your input. Decode auto-strips separators and prefixes.
  4. 4 Copy the result.

Why use this tool

  • UTF-8 aware — emoji and CJK characters round-trip cleanly.
  • Five output separators including C / Python \x escape and 0x-prefixed.
  • Auto-detect on decode — paste hex with any common separator.
  • No upload, no logs, no dependencies.

Frequently asked questions

Why does an emoji turn into 4 hex bytes?

UTF-8 encodes most emoji as 4 bytes. Each byte becomes 2 hex digits, so one emoji becomes 8 hex characters.

Can I paste hex that came from a hex dump?

Yes — the decoder strips whitespace, commas, 0x, and \x prefixes before parsing. The only requirement is an even total of hex digits.

Difference vs the UTF-8 Converter?

Both decode hex bytes back to text. This tool focuses on text → hex with separator pickers; the UTF-8 Converter also emits decimal bytes and \u{HEX} codepoint escapes.

Need text → binary instead?

Use our String to Binary Converter — produces 8-bit groups with optional spacing.

Summary

String to Hex Converter is a free developer utility by Zerethon Tools. Convert text to UTF-8 hex bytes and back. Pick from five separators on encode; decode auto-strips any common separator. Runs entirely in the browser — no signup, no upload.

Category
Developer
Pricing
Free
Privacy
Browser-based
Signup
Not required

Privacy

Your data never leaves your browser unless explicitly stated. String to Hex Converter runs entirely client-side — no server upload, no logging, no tracking of your input.

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