JWT Decoder
Decode JWT token to view header and payload
Run the converter
Tool details
Category
Identifiers and CodesInstant results
No downloads—process text right in your browser.
Privacy friendly
Inputs stay client-side; nothing is stored.
About this tool
JWT Decoder is a straightforward tool designed for developers and security professionals who need to decode JSON Web Tokens (JWT). This tool allows users to easily view the header and payload of a JWT, providing insights into the claims and metadata contained within the token. By decoding a JWT, users can verify its structure and understand the information it carries, which is essential for debugging and security assessments. Whether you are working on authentication systems or API integrations, JWT Decoder simplifies the process of analyzing JWTs without requiring complex setups or additional software.
How to use JWT Decoder
- Obtain the JWT token you want to decode.
- Open the JWT Decoder tool in your browser.
- Paste the JWT token into the designated input field.
- Click the 'Decode' button to process the token.
- Review the decoded header and payload displayed on the screen.
Frequently Asked Questions
What is a JWT?
A JWT, or JSON Web Token, is a compact, URL-safe means of representing claims to be transferred between two parties.
Why would I need to decode a JWT?
Decoding a JWT allows you to inspect its contents, including the claims and metadata, which is useful for debugging and verification.
Is JWT Decoder secure?
JWT Decoder does not store any tokens; it processes them locally in your browser, ensuring your data remains private.
Can I decode any JWT?
Yes, you can decode any JWT as long as it is correctly formatted, regardless of the signing algorithm used.