JWT Parser
Decode and inspect JWT tokens (header, payload, signature)
How to use
Paste a JWT token and click Parse to decode its header, payload, and signature. The expiration time is shown if the 'exp' claim exists. Token data is never sent to any server — everything is decoded in your browser.
- Decode JWT header, payload, and signature
- Display expiration time from the 'exp' claim
- Copy decoded sections to clipboard
- All processing is done locally in your browser