MacSift

MacSift scans a macOS system and presents the files it finds in a transparent list, grouped by the application that created them. Each entry shows the top five largest files, a representative path, and quick actions such as Reveal in Finder, Quick Look, or copying the path. The tool classifies items into eleven documented categories—caches, logs, temporary files, Xcode junk, developer caches, unused app data, mail attachments, Time Machine snapshots, large files, old downloads, and iOS device backups—so nothing is lumped into an ambiguous “junk” bucket.

When the user selects items, MacSift moves them to the Finder Trash using the standard FileManager.trashItem call, allowing easy restoration until the Trash is emptied. A dry‑run mode is enabled by default, and deletions over 10 GB trigger an additional warning. System directories such as /System, /usr, /bin, and /sbin are blocked from removal at the engine level.

The application is free and open‑source, distributed as a small Apple‑Silicon binary or as source code that can be built. It runs on macOS 26 (Tahoe) and requires no Developer ID, launching via a right‑click “Open” to accommodate ad‑hoc signing.