: After cleaning a keyboard following a liquid spill, a tester can identify which keys (if any) have been permanently damaged. Gaming Optimization
The Keyboard Test Utility (in its various free, lightweight forms) is a prime example of "boring perfection." It doesn't try to be flashy. It doesn't offer RGB controls or macro programming. What it does—verifying every single key on your keyboard—it does flawlessly, instantly, and without bloat. Keyboard Test Utility
