Text ↔ Hex / Binary / ASCII

Convert text to hexadecimal, binary, decimal and octal byte values (UTF-8) and back. Edit any field.

Runs locally in your browser
Separator
16 bytes

Edit any field — all others update automatically.

More Encoding tools

Base64 Encode / DecodeEncode text or files to Base64 and decode Base64 back to text. Supports URL-safe Base64.URL Encode / DecodePercent-encode or decode text for use in URLs and inspect the parts and query parameters of a URL.

Free online tools — fast, private, no sign-up.

All tools run in your browser. No data is uploaded.

ImprintPrivacy© 2026 no.tools