Komet

The tool provides a dedicated editor for crafting commit messages on macOS, offering a streamlined interface that lets users apply or discard a commit with a single action. It automatically inserts a double newline after the first line, enforces line‑length warnings, and highlights text that exceeds the recommended width. Integrated Cocoa spell‑checking with automatic correction helps maintain proper spelling throughout the message.

When launched, the editor positions the caret optimally after any pre‑filled content, allowing users to begin typing immediately. The application supports macOS versions from 10.11 onward, with recent releases targeting newer system releases such as macOS 12.4. Development is open‑source, encouraging contributions via its GitHub repository.