mtools.lol

URL Decoder

Decode percent-encoded URLs and query strings back to readable text.

How it works

  1. 1Paste the encoded text.
  2. 2Choose whether + means a space.
  3. 3Copy the decoded result.

Features

  • UTF-8 decoding for accents and emoji.
  • + as space for form data (optional).
  • Malformed sequences reported clearly.
  • Private: runs in your browser.

Frequently asked questions

Why does + become a space?

HTML forms encode spaces as +. Turn that off to keep literal plus signs.

What does malformed mean?

A % not followed by two hex digits, or bytes that aren't valid UTF-8.

Is anything sent?

No. It runs in your browser.