mitmproxy review
A broad, programmable proxy for debugging HTTP, HTTPS, WebSockets, and related traffic.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
mitmproxy is a free, open-source intercepting proxy for developers, testers, security researchers, and privacy analysts. It captures, inspects, modifies, records, and replays network traffic through command-line, browser-based, and Python interfaces. The project supports desktop, browser, CLI, API, and self-hosted use, with Windows, macOS, and Linux coverage. Its proxy modes include regular, reverse, transparent, local-capture, WireGuard, SOCKS, and upstream configurations.
Its strongest differentiator is breadth paired with programmability. mitmproxy can inspect HTTP, HTTPS, HTTP/1, HTTP/2, HTTP/3, and WebSocket traffic, while allowing interactive request and response editing, breakpoint rules, WebSocket message manipulation, and complete conversation recording. The mitmweb interface provides browser-based control, mitmdump supports command-line workflows, and the Python API enables programmable addons. Those addons can transform traffic, generate responses, create mocks, and automate replay workflows. Upstream proxy mode also supports proxy chaining.
The product suits teams that want direct control over traffic analysis without a paid license or closed platform. Its free and open-source model is a strong fit for local development, repeatable debugging, scripted testing, and traffic inspection across varied protocols. The main trade-off is that its flexibility is centered on proxy configuration, command-line operation, and Python scripting rather than a managed service. mitmweb is documented as a web-based interface but runs as part of the local mitmproxy tool. Teams seeking AI-assisted workflows or a hosted debugging environment should choose a different product; teams comfortable with programmable local tooling should find mitmproxy a focused fit.
mitmproxy pros and cons
- Where it wins
- Covers HTTP/1, HTTP/2, HTTP/3, HTTPS, and WebSockets
- Combines browser, command-line, and Python addon interfaces
- Supports replay, mocking, recording, and upstream proxy chaining
- Where it doesn't
- No AI-assisted features
- The web interface runs as part of the local mitmproxy tool
- Advanced automation requires Python-based scripted addons
mitmproxy fact sheet, pricing and score →
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