URL Encoder / Decoder
A free, browser-based file tool. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Runs entirely in your browser — nothing is uploaded or stored.
How to use this calculator
- Paste a URL or text.
- Press Encode or Decode.
How it works
URL (percent) encoding replaces characters that aren't safe in a web address with a % sign and their hex code — a space becomes %20, an ampersand %26. Decoding reverses it.
Worked example
"a b&c". encodes to a%20b%26c.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.