JWT Debugger
Decode, verify, and debug JSON Web Tokens (JWT) to inspect claims and signatures.
JWT.io
The JWT debugger.
Official JWT debugger with visual token structure, claims viewer, and signature verification. Most popular JWT tool. Essential for developers.
Why I picked this:
JWT.io is my go-to because it's the official debugger and the most comprehensive tool available. The visual token structure makes it easy to understand what's in a JWT, and the claims viewer helps me debug authentication issues quickly. I've used it countless times to verify tokens, check expiration dates, and understand token structure. It's essential for any developer working with JWTs.
Token.dev
Modern JWT debugger.
Clean, modern JWT debugger with additional features like token generation. Less popular than JWT.io but more features.
VSCode Extension
JWT debugger in your editor.
VSCode extensions for JWT debugging. Convenient if you're already coding, but requires extension installation.