← All text tools

JWT decoder

Read the header and payload of a JSON Web Token and check when it expires.

  • Free
  • No sign-up
  • Works on any device

About JWT decoder

Paste a JSON Web Token to read its header and payload, including claims such as sub, iat and exp, and see when it expires. A JWT has three Base64URL parts separated by dots. Decoding is not verification: anyone can read the payload, so never put secrets in it.

How to use JWT decoder

  1. Type or paste your text in the box above.
  2. The result appears instantly as you type.
  3. Copy the result or download it as a file.

Why use this tool?

Also known as

Frequently asked questions

Is a JWT encrypted?

Normally no. It is only encoded and signed, so anyone holding the token can read the payload. The signature proves it was not altered, not that it is secret.

Is JWT decoder free?

Yes. JWT decoder on Toolipedia is free to use, with no sign-up and no watermark.

Is it safe to use?

Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.

Does it work on my phone?

Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.

Do I need an account?

No. Just open the page and use the tool. There's no sign-up and no email needed.

Related tools