FRTMProxy is a macOS app to observe, understand, and shape HTTP/S traffic in real time. It’s built for daily debugging, with tools that organize requests, make mocking easy, and help you replay real-world scenarios in a few clicks.
FRTMProxy is free for every developer, and it will remain free.
- Inspect requests and responses with a fast, readable inspector.
- Mock local responses in a controlled way (no code required).
- Record sessions and reuse them for replay and testing.
- Pause traffic with breakpoints to inspect or edit on the fly.
- Connect iOS devices with guided certificate setup.
Define rules to answer specific requests locally. Perfect for fast mocks, edge cases, or isolating the app from external dependencies.
Record a session, keep it locally or push it to a Git repo. You can export to HAR, edit it, and reuse it. When a collection is enabled, you enter Replay mode: when the app makes the same calls, FRTMProxy responds with the previously recorded mock services.
Pause requests/responses to inspect or modify them before letting them continue.
A dedicated section to connect iOS devices:
- Simulator: guided certificate installation.
- Physical device: QR code to download the certificate directly on the phone.
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Happy debugging! 🚀
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