Authorization flow tester

Authorization Flow Launcher

Start with an issuer, host, or authorization endpoint. Discover the provider metadata, then launch a real browser flow and inspect the returned callback on oauth2.dev.

Discovery

Recommended. Enter an issuer, host, or authorize endpoint and let the tool resolve the canonical endpoints from metadata.

Issuer, Host, or Authorization Endpoint

Launch Authorization Flow

Fill the request fields, generate the authorize URL, and launch the flow in a real browser context.

Client ID

Redirect URI

Response type

Response mode

Scope

Prompt

State

Nonce

Generate PKCE challenge

Code verifier

Code challenge

Authorization request URL

This tool launches real OAuth 2.0 and OpenID Connect authorization flows against the oauth2.dev callback catcher. Use it to test authorize redirects, PKCE, response modes, and returned parameters. A server-side preflight check is still available under advanced diagnostics, but real browser flow testing is the primary path.

Authorization Flow Launcher

Discovery

Manual Endpoint Overrides

Launch Authorization Flow

Advanced Diagnostics

Authorization Flow Launcher

Discovery

Manual Endpoint Overrides

Launch Authorization Flow

Advanced Diagnostics