Sloth

Sloth application icon

Sloth is a native Mac app that shows all open files and sockets in use by all running processes on your system. This makes it easy to inspect which apps are using which files and sockets.

Features

Sloth is essentially a friendly, exploratory GUI built on top of the lsof command line tool. The output is parsed and shown in a searchable, filterable outline view with all sorts of convenient additional functionality. See screenshots below.

Download

Sloth is free, open source software and has a home on GitHub. It has been continuously developed and maintained for a very long time (since 2004). If you find this program useful, please make a donation.

You can download the latest version here:

Sloth can also be installed via Homebrew (may not be latest version):

$ brew install --cask sloth

Old versions supporting macOS 10.8 and earlier can be downloaded here.

Screenshots

Sloth screenshot 1

Sloth screenshot 2

Sloth screenshot 3