The best alternatives to Surge for Mac are Sniffnet, Ray, and RegViz. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Sniffnet is a command line interface written in Rust to analyze your network traffic, providing detailed graphical and textual reports. It provides several command line options to filter only the traffic you are really interested in.
Ray is a beautiful desktop app to fix problems faster in PHP and JavaScript projects. Free demo: check https://myray.app/ 30% discount on Ray: https://spatie.be/products/ray?referrer=product%20hunt
With code-ray you can fix bugs in your code faster and easier. You can set breakpoints to show the live state in different sections of your code. code-ray can be linked to GitHub, GitLab and Bitbucket. There is a permanently free version.
Capture, inspect, analyze, manipulate and mock all the HTTP, HTTPS and WebSocket traffic between your computer and the internet. Don't wait for the backend to be ready, generate custom API responses and start working on your application straightaway locally!