URL Encode / Decode

Percent-encode text for URLs or decode it back, with the query parameters listed.

About this tool

Percent-Encoding for URLs

Encode text so it can go into a URL, or decode %20-style text back. For a whole URL, the query parameters are listed one by one, which makes long tracking links readable.

How to use it

  1. Choose Encode or Decode, and Part of a URL or Whole URL.
  2. Type or paste the text or URL.
  3. Copy the result and check the listed parameters.

Frequently asked questions

Is my data sent anywhere?

No. Every tool runs in your browser. Tokens, passwords and files are processed on your device and never uploaded.

Can I link to a tool?

Yes. Each tool has its own address, for example toolula.com/dev/regex-tester, and you can star tools to keep them at the top of the list.

Does the JWT decoder check the signature?

No. It decodes the header and payload and shows their dates; checking the signature needs the secret or public key.

Are the generated passwords and UUIDs random enough?

Yes. They come from the browser's cryptographic random generator (crypto.getRandomValues / randomUUID), the same source used for keys.