mitmproxy
cli
Free
mitmproxy.org
What it does
Command-line proxy that captures and modifies HTTP/HTTPS traffic. Supports scripting with Python for automated request manipulation.
When to use it
- Automated traffic manipulation
- Scripted security testing
- CI/CD integration
When not to use it
- GUI-based analysis
- Non-technical users
Limitations
- Requires command-line familiarity
- Certificate setup needed for HTTPS