Kaleidoscope

Kaleidoscope is a macOS‑only diff and merge utility that works with text, images, and whole‑folder trees. It integrates with Git to show file history, commit details, and three‑way merges, allowing users to view base and side changes side‑by‑side and resolve conflicts. The tool also provides a single‑view code‑review mode that aggregates all changes between two commits, with filters for modification type, file name, and file type.

For text files, Kaleidoscope offers character‑level diffs that highlight edits while collapsing unchanged sections, and rapid navigation between changes. Image comparison is pixel‑accurate, supporting split, blink, drag, and diff modes, and it can display format and color‑profile information. Directory comparison presents side trees at a glance, with inline diffs, Quick Look previews, and the ability to copy items between folders.

The application is positioned for developers, designers, and anyone who needs precise visual or textual change detection on macOS, emphasizing a clean interface and deep Git integration without adding broader version‑control features.