Sloth
Mac app for viewing all open files, sockets and processes
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BSD-3-Clause 3.6 May 13, 2026
Since Mar 2011 3
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AI Summary
Sloth is a native macOS application that provides a clear overview of all open files, directories, IP sockets, pipes and devices across all running processes. The app is a user-friendly graphical interface for the lsof command-line tool with advanced filtering, search and sorting capabilities. In development since 2004, it offers detailed insights into system resources and process activities.
✓ Pros
- + Free open-source software with over 20 years of continuous development
- + Native, fast Cocoa app with intuitive GUI and extensive filtering options
- + Root access support for complete system analysis directly within the app
✗ Cons
- − Exclusively available for macOS, no cross-platform support
- − Requires technical understanding of system resources and processes for effective use
Use Cases
- → Debugging apps to check which files and network connections are being used
- → Monitoring network sockets and open ports for security analysis
- → Identifying processes that are blocking or locking specific files
- → Analyzing communication channels between processes via pipes and Unix sockets
Who is it for?
Developers, system administrators and technical power users on macOS who want to monitor and debug processes and system resources.
