Alternatives to DaisyDisk
Interactive sunburst map of disk usage for macOS. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
DaisyDisk
Interactive sunburst map of disk usage for macOS.
Replacements
Listings that take over the same core job as DaisyDisk.
GrandPerspective
Treemap view of disk usage on macOS.
GrandPerspective is free and open source under GPL-2.0, uses a treemap instead of a sunburst, and can compare saved scans, though its interface is deliberately plain.
ncdu
A disk usage analyser with a text interface, built for finding what is filling a remote server you can only reach over SSH.
ncdu is a free open-source text interface for macOS and Linux that works over SSH and deletes files in place, but shows a list rather than a chart.
gdu
Find large directories with a terminal disk-usage analyzer.
gdu is a free open-source terminal analyzer for Windows, macOS and Linux with parallel scans, replacing the graphical sunburst with a text interface.
dua-cli
Explore disk usage and remove unwanted files in the terminal.
dua-cli is a free MIT-licensed terminal tool for exploring disk usage and deleting files, running on Windows, macOS and Linux instead of a paid macOS app.
Dust
See which directories consume space in a compact terminal tree.
Dust is a free Apache-2.0 command-line tool showing directory sizes as a compact tree with size bars, without interactive deletion or a graphical map.
OmniDiskSweeper
A free macOS utility that lists the files on a drive from largest to smallest.
OmniDiskSweeper is a free macOS utility showing a plain size-sorted file list with trash and open actions, but it has no chart or map view.
QDirStat
A Qt-based graphical disk usage analyser with a directory tree and treemap view.
QDirStat is a free, open-source Qt analyser for macOS and Linux with a tree and treemap view, though its interface is dense for casual users.
godu
An interactive terminal utility written in Go for finding the files and folders filling a disk.
godu is a free, open-source Go terminal utility for interactively browsing disk usage on macOS and Linux, including over SSH, but updated only occasionally.
Also worth comparing
These listings name DaisyDisk as their own alternative, so the relationship runs both ways.
Filelight
Shows disk usage as concentric rings you can click into.
DaisyDisk is a paid macOS app with a similar interactive sunburst map and a holding area for confirmed batch deletion.
Similar software
Related functionality, not a direct replacement.
Disk Utility
Built-in macOS tool for creating disk images and managing volumes.
duf
Shows disk usage and free space in a readable coloured table.
diskus
Measure the total size of a directory from the command line.
Pearcleaner
A free, source-available macOS app uninstaller that finds and removes leftover files.
pdu (parallel-disk-usage)
A command-line directory tree analyzer that measures disk usage in parallel and prints a size chart.