About this tool
JWT Decoder is part of our Developer Tools collection. It is designed for a clear, fast workflow with practical options, useful output, and privacy-aware processing.
JWT Decoder
Inspect a JWT header and payload locally.
✓Your files are processed in your browser — nothing is uploaded to our servers.
Privacy-first processing
Your files are processed in your browser — nothing is uploaded to our servers.
Frequently asked questions
Can I use JWT Decoder for free?
Yes. You can use the core JWT Decoder workflow for free.
How are my files handled?
Your files are processed entirely in your browser. File contents are never uploaded to our server.