Encoders & DecodersDocumentation
JWT Decoder — Documentation
Decode JSON Web Tokens instantly and inspect headers, payloads, and signatures.
Overview
JWT Decoder is a free online tool that lets you decode json web tokens instantly and inspect headers, payloads, and signatures. All processing happens right in your browser — your files never leave your device.
No cost
Free
Client-side
Privacy
Not required
Signup
Quick Start
1
Paste a JWT token to instantly decode and view the header.
2
and signature.
Tips & Best Practices
Everything runs in your browser — your token is never sent to any server.
Frequently Asked Questions
4 questionsReady to get started?
Open JWT Decoder