Security & Authentication
OAuth 2.0 / OIDC Debugger
Inspect authorization URLs and callback parameters locally.
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Output
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Your result will appear here
Add an input and run the tool to get started.How to use OAuth 2.0 / OIDC Debugger
Paste your input or load the example, choose the relevant options, then select Run tool. Errors appear below the editors. Copy or download the result when ready.
Authorization code exchanges happen at a token endpoint; PKCE binds the code to its client. Client credentials are for confidential machine clients. Example: POST /token with grant_type=client_credentials (use placeholders, never embed a real secret).
Keyboard shortcuts: Ctrl/⌘ + Enter to run, Ctrl/⌘ + K to find another tool.