OAuth Token Viewer

Inspect OAuth access tokens and their contents.

Encoded Token

Header
// Decoded header will appear here
Payload / Claims
// Decoded payload will appear here

Signature Verification

About the OAuth Token Viewer

Decode and inspect JWT-based OAuth access tokens. This tool breaks down the token into its header and payload, making it easy to view the claims and metadata. You can also verify the token's signature using a secret or public key.

OAuth tokens, especially JWTs, are Base64Url encoded and unreadable by default. This tool saves you time by instantly decoding the token, helping you debug authentication issues, check scopes, and verify token integrity without needing external libraries or command-line tools.