JWT Decoder
Decode JWT tokens to instantly view header and payload claims securely inside your browser. No data ever leaves your device.
Input Token
Decoded Token
Awaiting Token
Paste a JWT (JSON Web Token) in the left panel and click Decode to view the payload.
About this tool
Instantly decode a JSON Web Token (JWT) to carefully inspect its underlying Header (algorithm details, token type) and Payload (containing data or claims like sub, exp, and iat). Since we strictly only decode the base64 encoded strings locally, none of your secure tokens are sent over the network.
Note: We do not verify the signature. You should not paste strictly sensitive private keys online securely. Verify keys strictly on a backend environment where the key exists securely.
Also try our JSON Formatter, Base64 Encoder/Decoder, or Password Hash utilities.
Frequently Asked Questions
Common questions about the JWT Decoder.
What is the JWT Decoder and how does it work?
The JWT Decoder is a free online utility designed to help you quickly and easily decode JWT header and payload. Real-time, no reload. Copy, download. Dark mode. It runs directly in your browser, meaning you don't need to download or install any software.
Is the JWT Decoder free to use?
Yes, our JWT Decoder is 100% free to use with no hidden fees, limits, or subscriptions. You have unlimited access to all features without needing to create an account.
Is it safe to use the JWT Decoder?
Absolutely. Your privacy and security are our top priorities. The JWT Decoder utilizes advanced secure processing, and we never store your data or files on our servers.
Does the JWT Decoder work on mobile devices?
Yes! The JWT Decoder is built with a fully responsive mobile-first design, meaning it works flawlessly on any device including smartphones, tablets, laptops, and desktop computers.
Explore Related Free Tools
Boost your productivity with more high-performance utilities.
User Agent Parser
Parse browser User-Agent strings into readable machine details.
Speed Converter
Convert velocity seamlessly between mph, km/h, m/s, and knots.
Volume Converter
Convert fluid metrics securely among liters, gallons, ml, and ounces.
194 | Robots Meta Tag Generator
Design explicit crawler directives seamlessly embedding HTML.
JS Preview Tool
Execute independent JavaScript logic matrices mapping instantly.
Local Storage Viewer
Diagnose full standard local-storage state matrices properly.