Decode & verify JWTs, inspect OIDC discovery, and generate PKCE — right in your browser.
🔒 Everything runs client-side. Tokens never leave your browser.
Fetches <issuer>/.well-known/openid-configuration.
<issuer>/.well-known/openid-configuration
Generate a PKCE code_verifier and its S256 code_challenge for an Authorization Code + PKCE flow.
code_verifier
code_challenge
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