Is it safe to paste my JWT token here?

Yes, decoding runs 100% client-side in JavaScript; your token is never transmitted over the network.

Does this show human-readable expiration dates?

Yes, exp and iat timestamps are automatically converted to UTC date strings.

100% Client-Side • Zero Data Leaves Browser

Decode JWT header and payload claims locally without sending authentication tokens to any backend server.

Active Converter / Utility

Input Data Upload File

Output Result