ToolNest

URL Encoder / Decoder

Percent-encode or decode URLs and query parameters, the way browsers do.

Processed on your device โ€” nothing is uploaded

Uses encodeURIComponent / decodeURIComponent โ€” the standard for URLs and query parameters. Runs 100% locally.

About the URL Encoder / Decoder

Fix broken links and build correct query strings: encode special characters with percent-encoding (encodeURIComponent) or decode URL-encoded text back to plain characters.

Everything runs locally in your browser โ€” handy when working with tokens, signed URLs or any string you would rather not paste into an unknown server.

How to use the URL Encoder / Decoder

  1. 1Paste your URL or parameter value.
  2. 2Press Encode or Decode.
  3. 3Copy the result with one click.

Frequently asked questions

Which encoding is used?

encodeURIComponent / decodeURIComponent โ€” the standard for URL components and query parameter values.

Why does a space become %20?

%20 is the percent-encoded form of a space โ€” the safest representation inside URLs and query strings.

Is my URL uploaded anywhere?

No. The conversion happens entirely in your browser.