This is Sachin - Requestly founder here!

At Requestly, We're trying to build an open-source platform to make frontend devs more productive. Having been a frontend dev myself, I often found inefficiencies like being blocked on backend devs for development & testing. Another problem that I faced very regularly was testing my JS changes directly on production sites.

We're trying to solve this with Requestly being an on-device proxy (Chrome extension as well as standalone app) that helps you capture network requests and reroute and mock responses easily.

Traditionally, people used Charles Proxy or Fiddler for this but many companies have moved to Requestly now for easy use & being present in browser makes it fast to use and without VPN Issues.