oauth2.dev - The Public OAuth Debugging Workflow
Start with discovery, run a real authorization flow, inspect the callback, exchange the code, and debug returned tokens in one OAuth 2.0 and OpenID Connect workbench.
Categories:
oauth2.dev is a public guided workbench for debugging OAuth 2.0 and OpenID Connect implementations.
🚀 Overview
oauth2.dev offers a structured, step-by-step public workflow for debugging OAuth 2.0 and OpenID Connect providers and clients. Users can start with validating discovery documents, launch real authorization flows, catch and inspect callbacks, test token endpoints, and debug tokens—all in one unified interface.
It solves the problem of fragmented debugging tools by providing a practical, protocol-realistic workbench that goes beyond static validation to simulate actual flows.
Built for developers implementing or troubleshooting OAuth/OIDC, such as identity engineers, API developers, and security specialists.
Created by Andy Barlow to deliver a clearer, deeper debugging experience focused on real-world protocol behavior rather than isolated utilities.
✨ Key Features
- OpenID Configuration Validator: Validates discovery documents.
- Authorization Flow Tester: Launches browser flows with PKCE and response mode support (what it does and why it matters: simulates real auth requests).
- Authorization Callback Catcher: Inspects incoming callbacks.
- Token Endpoint Tester: Tests code exchange, handles errors, content types, CORS.
- Token Debugger: Decodes JWTs, verifies signatures, inspects claims.
- Utilities: UserInfo/JWKS Validators, JWT Generator, Keypair Generator, Key Converter, Encoders, RFC Search, Claims Wiki.
🛠 Tech Stack
- Not publicly disclosed.
👥 Who Is This For?
This project is useful for:
- Developers implementing OAuth 2.0 / OpenID Connect providers or clients
- Teams debugging authorization and token flows
- Indie makers and security pros testing identity protocols
📸 Screenshots / Demo
- Live demo: https://www.oauth2.dev
- GitHub: https://github.com/0xandybarlow (maintainer profile)
🔥 Project Status
- 🟡 Maintained
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Yes (free public web tools for all users.)
Is the source code available?
No — source code is not publicly available.
Can I contribute?
Contact the maintainer via LinkedIn for feedback or suggestions; no formal issues/PRs as repo is private.
📬 Contact & Links
- Website: https://www.oauth2.dev
- GitHub: https://github.com/0xandybarlow
- LinkedIn: https://uk.linkedin.com/in/andy-barlow
Built with ❤️ and kept warm on WarmIndex.
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