Bearer Token Viewer
Paste a JWT token below to view its decoded contents, including the header and payload.
JWT Bearer Tokens - Technical Details
JWT (JSON Web Tokens) are self-contained tokens used for authentication. They consist of three Base64-encoded parts: header (algorithm and type), payload (claims and data), and signature. The signature verifies the token hasn't been tampered with.
Command-line Alternative
echo 'YOUR_JWT_HERE' | cut -d '.' -f2 | base64 --decode | jq