duf

duf is a Disk Usage/Free Utility, written in Go by Christian Muehlhaeuser (muesli). With over 13,000 stars as of 2026, duf provides a beautiful, colorful overview of disk space usage across all mounted filesystems, replacing the traditional df command with a much more informative and readable output. Key features include: colorized tabular output showing device name, filesystem type, total size, used space, available space, usage percentage, and mount point, automatic terminal width adaptation (adjusting column widths and truncating long device names or mount points), filtering by filesystem type, device name, or mount point, sorting by any column, JSON output for scripting and integration (--json flag), hiding specific filesystems (--hide-fs tmpfs, etc.), showing or hiding loopback devices, displaying inode usage (--inodes flag for displaying inode counts instead of byte counts), multi-platform support (Linux, macOS, BSD, and Windows with native WMI queries), and integration with terminal color themes. duf aims to be the modern replacement for df with a focus on clarity, readability, and useful defaults, making it easy to quickly identify which filesystems are running low on space without parsing verbose df output.