Apps similar to Keyboard Tester Pro include Testuj.ovh, which is free. Other options are inputprobe, HardwareTest, Device Test Online and DeviceCheck HQ. In total there are five apps like Keyboard Tester Pro for the web.
Testuj.ovh is a comprehensive, web-based diagnostic platform designed for instant hardware verification. Built for users who need to check the technical condition of smartphones, computers, or gamepads without installing any software.
Poland
EU
Mouse and keyboard testers that read device events instead of counting screen frames, and publish their measured error bands.
United Kingdom
A free, web-based utility suite designed to test your computer hardware and peripherals instantly without installing any software.
United States
Free, privacy-first hardware diagnostic suite. Test monitors, microphones, keyboards, mice, and gamepads directly in your browser without installation.
United States
DeviceCheck HQ is a set of free hardware test tools that run entirely in the browser, with no download and no sign-up.
