FRTMProxy is an open-source macOS application designed to effectively observe, analyze, and manipulate HTTP/S traffic in real-time. Aimed primarily at developers seeking robust debugging tools, FRTMProxy facilitates the organization of requests, simplifies mocking, and enables the replay of real-world scenarios effortlessly.

Key Features

• Request and Response Inspection: Utilize a fast and readable interface to inspect requests and responses, helping in quick diagnosis of issues.
• Mocking Capabilities: Easily create local responses without the need for coding, allowing for controlled testing environments.
• Session Recording: Record and upload sessions for future replay and testing purposes, enhancing test accuracy and repeatability.
• Traffic Control with Breakpoints: Pause and examine traffic dynamically, enabling the inspection and modification of data before it proceeds.
• iOS Device Connection: Features a user-friendly setup for connecting iOS devices, complete with guided certificate installation processes. This includes the ability to connect both simulators and physical devices via QR codes for seamless integration.

Core Tools

Rules

Create specific rules to respond to local requests, perfect for rapid mocks and managing edge cases without relying on external dependencies.

Collections

Capture session data, store it locally or save it to a Git repository, and export to HAR format for further analysis. When activated, collections allow the app to enter Replay mode, enabling previously recorded mock services to serve responses for identical calls.

Breakpoints

Manage and inspect requests/responses through configurable breakpoints that allow modifications before continuing the flow.

FRTMProxy remains entirely free for developers, ensuring users have access to these vital debugging tools without barriers. With its intuitive design and powerful features, FRTMProxy is positioned as a viable open-source alternative to established tools like Proxyman and Charles.