JWT Decoder
Decode JWT header, payload, and signature locally with expiry checks. Use this free online tool directly in your browser.
Decoded locally in your browser. Your token is never sent to a server.
JWT Decoder helps developers, designers, and content teams complete repetitive tasks faster. It is built for quick copy-and-paste workflows and practical day-to-day use.
How to use
- Paste or enter your data in the JWT Decoder input area.
- Run the conversion, generation, or validation action.
- Copy or download the result for your project workflow.
Try an Example
Example Input
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NSIsImV4cCI6MjYwMDAwMDAwMCwiaWF0IjoxNzAwMDAwMDAwfQ.signature
Frequently Asked Questions
What is JWT Decoder?
JWT Decoder is a free browser-based utility on Bite Size Tools. Decode JWT header, payload, and signature locally with expiry checks.
Is JWT Decoder safe to use with sensitive data?
Yes. Tool processing runs in your browser, so your input is not sent to a server by default in this app.
Can I use JWT Decoder for production work?
Yes. You can use the output directly in development and production workflows after validating it with your project requirements.
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