OAuth/OIDC Debugger
Debug OAuth 2.0 and OpenID Connect flows with JWT decoder, PKCE generator, flow tester, and error troubleshooting

What OAuth/OIDC Debugger does
A concise, structured breakdown of the OAuth 2.0 authorization code flow, designed for developers who need to implement or debug the authorization code flow with PKCE and PKCE with PKCE (Proof Key for Code Exchange). It deconstructs the authorization code flow into its component parts: authorization request, authorization code exchange, and token verification. It serves as a practical reference for developers implementing OAuth 2.0 in their applications.
How to use the Inventive HQ OAuth/OIDC Debugger
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1. Review the core concepts of the OAuth 2.0 authorization framework.
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2. Follow the step-by-step guide to initiate an authorization request.
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3. Understand the flow of tokens and code exchange.
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Learn how to securely handle authorization codes and tokens.
Best for
Developers implementing OAuth 2.0 flow, security auditors, and system architects needing to verify token handling and authorization flows.
Limitations
- Lacks deep protocol-level detail for advanced OAuth 2.0 scenarios.
- Focuses on the high-level flow rather than low-level protocol mechanics.
OAuth/OIDC Debugger FAQ
- What is the primary purpose of this tool?
- It serves as a reference for understanding OAuth 2.0 flows, specifically the authorization code flow with PKCE.
- Can I use this tool to debug actual OAuth implementations?
- Yes, it serves as a reference for understanding the OAuth 2.0 flow and validating token behavior.
- What does the tool cover regarding OAuth 2.0?
- It covers the core concepts of OAuth 2.0, including authorization codes, implicit flows, and the interaction between client and authorization server.