mitmproxy
mitmproxy/mitmproxy
A powerful network packet sniffing tool that lets you intercept, view, and even modify all network requests from your device, essential for development debugging.
An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.
AI Summary
What This Project Does
It acts like a "transparent relay" for network traffic, intercepting web or app requests so you can see the data details inside.
What Problems It Solves
It solves the pain point of "not knowing what data the server actually received." You don't need to read backend code; just grab the packet to see request and response content, and modify it on the spot.
Who It's For
1. Backend Developers (debugging APIs)
2. Mobile Testers (sniffing mobile traffic)
3. Security Researchers (penetration testing)
Typical Use Cases
1. Debugging API parameters to see why submission fails.
2. Analyzing network request behavior of third-party apps.
3. Simulating modified request data to test server security.
Key Strengths & Highlights
Supports HTTPS encrypted traffic decryption, offers both command-line and web interfaces, and allows Python scripting for automated traffic handling.
Getting Started Requirements
Requires installing certificates on your computer or phone; basic HTTP protocol knowledge is recommended, otherwise the screen full of data might be overwhelming.
Purpose
It is the top choice when you need to debug APIs or analyze app network behavior. However, it's not for daily browsing as it triggers certificate warnings on many sites.
Category
Project Info
- Primary Language
- Python
- Default Branch
- main
- License
- MIT
- Homepage
- https://mitmproxy.org
- Created
- Feb 16, 2010
- Last Commit
- 5 days ago
- Last Push
- 5 days ago
- Indexed
- Apr 18, 2026