mitmproxy vs httpmon

mitmproxy9.4Visit httpmon8.5Visit

Higher score mitmproxy #1 in Web Debugging Proxies 9.4/10 Free plan Free plan✓ 6 of 6 features Visit mitmproxy

vs

httpmon #8 in Web Debugging Proxies 8.5/10 Free plan Free plan✓ 4 of 6 features Visit httpmon

• mitmproxy fits best

  Teams wanting a free, programmable proxy

• httpmon fits best

  Open-source macOS and Linux debugging teams

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Side by side

Feature	mitmproxy 9.4/10 Visit ↗	httpmon 8.5/10 Visit ↗
At a glance
Editor score	9.4	8.5
Ranking	#1 in Web Debugging Proxies	#8 in Web Debugging Proxies
Best for	Teams wanting a free, programmable proxy	Open-source macOS and Linux debugging teams
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop, Browser extension, Self-hosted	Desktop
Platforms	Web, Windows, macOS, Linux	macOS, Linux
Support	Community, Docs	Docs
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business
Features mitmproxy 6/6 · httpmon 4/6
Request/response editing	✓	✓
Breakpoint rules	✓	✓
Traffic replay	✓	✓
Response mocking	✓	✓
WebSocket inspection	✓ (best)	Not checked yet
Proxy chaining	✓ (best)	Not checked yet
Specs
Platforms	Not checked yet	Not checked yet
Our review
Pros	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	Free and open-source with no account or paid tiers Breakpoints, replay, mocking, throttling, and JavaScript hooks Decodes gRPC-Web and Protobuf traffic with MCP support
Cons	No AI-assisted features The web interface runs as part of the local mitmproxy tool Advanced automation requires Python-based scripted addons	Platform coverage is limited to macOS and Linux Terminal-focused workflows may not suit GUI-first teams WebSocket debugging is not a stated strength
Our verdict	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… Read the review →	httpmon is an open-source HTTP/HTTPS debugging proxy for developers and technical teams working from macOS or Linux terminals. It intercepts traffic through a man-in-the-middle proxy, automatically generates CA certificates, and presents… Read the review →

Strengths and trade-offs

• mitmproxy — 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

• httpmon — where it wins

  • Free and open-source with no account or paid tiers
  • Breakpoints, replay, mocking, throttling, and JavaScript hooks
  • Decodes gRPC-Web and Protobuf traffic with MCP support

  Where it doesn't

  • Platform coverage is limited to macOS and Linux
  • Terminal-focused workflows may not suit GUI-first teams
  • WebSocket debugging is not a stated strength

• mitmproxy9.4/10 · Free plan

  A broad, programmable proxy for debugging HTTP, HTTPS, WebSockets, and related traffic.

  Visit mitmproxyFull verdict →
• httpmon8.5/10 · Free plan

  A free, scriptable proxy for detailed HTTP debugging on macOS and Linux.

  Visit httpmonFull verdict →