Free to use tool with more than 3,300 downloads. Open-source, cross-platform, desktop app.
Allows a user to instantly test a website for responsiveness across various devices.
Works on Windows, macOS, and Linux.
✅ 3,000 customers
✅ The app is not monetized yet
Contact founder here: https://www.microns.io/startup-listings/website-responsive-testing-tool