Home / Developer utilities

SlothUnderrated

A native GUI for lsof that shows every open file, socket, and pipe on your Mac by process.

Previewsveinbjorn.org
Screenshot of Sloth's website

Best for

Developers and admins debugging which process holds a file, port, or mount.

Why it deserves attention

Sloth lists every open file, directory, IP socket, Unix domain socket, device, and pipe, then lets you filter by name, access mode, volume, type, location, or regular expression and sort by process, user, bundle identifier, and more. It shows socket status, protocol, and version, highlights connections between processes, and offers an inspection window plus contextual file operations and in-app root authentication. It is a native Objective-C/Cocoa app under BSD-3-Clause with about 9,000 GitHub stars and stays fast on large process tables. It is a diagnostic tool rather than a monitor, the UI is information-dense, and reading root-owned sockets requires the authentication prompt.

Ratings & reviews

0 ratings
—/ 5

0 people rated this

Rating distribution
50
40
30
20
10

No ratings yet. Be the first to rate this tool.

Can replace

  • lsof

Related and alternatives

More in Developer utilities

← Back to Developer utilities