JWT Token Decoder
JWT tokens are Base64-encoded JSON. Our decoder splits the token into header and payload, formats the JSON, and shows you all claims (expiry, issuer, roles). Everything runs in your browser — your tokens stay private.
Open Base64 Encoder/Decoder Free →Features
- Decode header and payload
- View expiry date and claims
- Formatted JSON output
- Check token validity
- 100% client-side (private)
- Works with OAuth, Auth0, Firebase
How It Works
1
Open the Tool
Go to Base64 Encoder/Decoder
2
Use for Free
No signup, works in your browser
3
Download Result
Get your output instantly
Need Unlimited Usage?
Free plan includes 5 uses per day. Upgrade to Pro for unlimited usage, no ads, batch processing, and API access.
Upgrade to Pro — $9/mo