Duc
The facts below are what the maker publishes about Duc, checked and dated. Our editors have not written about it yet.
The facts
Each one read from Duc's own pages, with the date it was checked.
Where it runs
- Application sizes
- Nochecked 23 Sep 2026
- Desktop platforms
- Linuxchecked 23 Sep 2026
- Linux availability
- The maker’s site says Duc is available from Debian and Ubuntu repositories and gives installation instructions for Debian, Ubuntu, RHEL, and CentOS.checked 11 Oct 2026
What it does
- Build dependencies
- The maker lists ncurses, Cairo, Pango, and build-essential dependencies for Debian or Ubuntu builds.checked 11 Oct 2026
- Compatibility limit
- Some commands may not be available depending on the build configuration; the manual gives the duc-nox package as an example without the GUI command.checked 11 Oct 2026
- Data export
- The manual documents commands that generate XML or JSON output from the index.checked 11 Oct 2026
- Disk usage database
- Duc maintains a database of accumulated directory sizes that users can query to inspect filesystem usage.checked 11 Oct 2026
- Exportable reports
- Yeschecked 23 Sep 2026
- File-type breakdown
- Nochecked 23 Sep 2026
- Indexing
- Duc maintains a database of accumulated directory sizes that users can query or use to create graphs.checked 11 Oct 2026
- Indexing requirement
- Duc needs an index of the filesystem before it can show disk usage information.checked 11 Oct 2026
- Index privacy option
- The index command has a hide-file-names option that hides individual file names while preserving directory names.checked 11 Oct 2026
- Index requirement
- Duc requires an index of the file system before it can show information.checked 11 Oct 2026
- Installation
- Duc is available from Debian and Ubuntu repositories, and the maker provides source code for other operating systems.checked 11 Oct 2026
- Interfaces
- Duc offers command-line and ncurses interfaces, a graphical X or OpenGL interface, and a web CGI interface.checked 11 Oct 2026
- License
- The Duc GitHub repository identifies its license as LGPL-3.0.checked 11 Oct 2026
- Performance
- The maker says Duc stores disk usage in an optimized database for a fast interface once indexing is complete.checked 11 Oct 2026
- Privacy option
- The manual documents a hide-file-names indexing option that hides individual file names while preserving directory names.checked 11 Oct 2026
- Purpose
- Duc is a collection of tools for indexing, inspecting and visualizing disk usage.checked 11 Oct 2026
- Scale
- The maker says Duc has been tested on systems with more than 500 million files and several petabytes of storage.checked 11 Oct 2026
- Scan scope
- files_folderschecked 23 Sep 2026
- Source availability
- The maker’s site links to downloadable source releases and instructions to build and install Duc.checked 11 Oct 2026
- Support
- The maker directs questions, feature requests, and bug reports to the GitHub issue system and lists an email contact.checked 11 Oct 2026
Money
- Free plan
- Yeschecked 23 Sep 2026
Alternatives to Duc
- 1

WizTree
Free planmacOSWindows8.0Free plan - 2
LumaDisk
Free planmacOSWindows7.9$6.89 one-time - 3

Disk Usage Analyzer
Free planOpen sourceLinuxmacOS7.7Free plan - 4

FolderSizes
Free planWindows7.7$30 one-time - 5
SizeTrend
Free planWindows7.7$69.99 one-time - 6
dust
Free planOpen sourceLinuxmacOSWindows7.6Free plan
