Typometer is a tool to measure and analyze visual latency of text / code editors.
Editor latency is delay between an input event and a corresponding screen update, in particular case – delay between keystroke and character appearance. While there are many kinds of delays (caret movement, line editing, etc.), typing latency is a major predictor of editor usability.
Check my article Typing with pleasure to learn more about editor latency and its effects on typing performance.
Project source code is available as a GitHub repository.
Download: typometer-1.0-bin.zip (0.5 MB)