Requestly
Requestly shines when the problem lives inside the browser: redirecting requests, swapping vendor endpoints, or toggling behavior without touching the backend. Compared with Proxyman’s system-proxy, traffic-inspection mindset, Requestly is more about fast, targeted rewrites that match day-to-day frontend workflows like prod-to-staging routing and migration testing.
It’s especially strong for URL replacement (including regex) and header modification, so teams can simulate edge routing, feature flags, auth variants, or CDN behaviors directly in the client. That makes it ideal when the goal is to change what the browser sends, not deeply analyze every connection across native apps and devices.
Requestly also stands out for being open-source and broadly usable across browsers, which appeals to teams that want transparency and portability in their debugging toolchain. The setup tends to be lightweight, so it can shorten feedback loops for QA and frontend developers who need repeatable rules they can share and reuse.
If Proxyman feels like “bring out the heavy proxy,” Requestly is the quick, browser-native lever for making network behavior predictable during development and testing.
Best for
Best for frontend developers and QA who need quick, browser-based request rewrites and header overrides.
Standout features
- ✓URL redirect and regex replace rules
- ✓Request and response header modification
- ✓Browser extension workflow for fast setup
- ✓Rule sharing for repeatable testing
