Surge for Mac - Advanced Web Debugging Proxy for Mac & iOS

Relicx - Relicx enables developers to debug front-end issues fast with session replay, auto-generate end-to-end tests based on real user flows, and release faster by measuring CX risk in your CI/CD pipeline.

Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy

Evidently AI - Open-source monitoring for machine learning models

mitmproxy - mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP.

Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.