Online developer tool
URL Encoder / Decoder
Paste a URL, query string, or any text and instantly percent-encode or decode it — no server round-trip.
0 characters in · 0 characters outClient-side only · nothing is uploaded
Input
How to use this tool
Purpose
Use this tool to percent-encode text for safe use in a URL (a query value, path segment, or full link), or to decode a percent-encoded string back to plain text, without leaving your browser.
Main steps
- 1Paste or type text into the input box.
- 2Pick Encode or Decode in the options box below — the output updates instantly.
- 3In Encode mode, choose Component to escape every character unsafe in a single query value or path segment (including &, =, ?, /), or Full URI to keep those characters intact for encoding a complete URL.
- 4Toggle "Use + for space" to match the application/x-www-form-urlencoded style used in HTML form submissions and many query strings, instead of %20.
- 5In Decode mode, malformed percent-escapes (like a lone % or an incomplete %A) are reported as an error instead of silently producing garbled text.
- 6Copy the result once it looks right.
Output
Enter text to see the result.Options
Mode
Encode as