Keyboard Checker - Simple browser tool to check if all your keys work properly
Image Blur - Hide your sensitive data with a click
KeyboardTest - PassMark KeyboardTest allows users to quickly check that all the keys on their computer keyboard...
DataMask.tech - Mask private data before taking screenshots
Aqua's KeyTest - The program lets you check to see if all keys on your board function properly
GitGuardian - Detect secrets in source code, public and private!