head to head · open source
nnn vs TreeMap-Disk-Visualizer
nnn has 21,974 GitHub stars, 820 forks, 1 open issues and last shipped 3 days ago. TreeMap-Disk-Visualizer has 800 stars, 64 forks, 0 open issues and last shipped 3 days ago. nnn leads on adoption by 2,647% (21,974 vs 800 stars). nnn is written in C under BSD-2-Clause; TreeMap-Disk-Visualizer is written in TypeScript under MIT. nnn has attracted 4% as many forks as stars, TreeMap-Disk-Visualizer 8%. nnn was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (disk-usage, file-manager), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| nnn | TreeMap-Disk-Visualizer | |
|---|---|---|
| GitHub stars | ★ 22K | ★ 800 |
| License | BSD-2-Clause | MIT |
| Written in | C | TypeScript |
| Last push | 2026-09-19 | 2026-09-19 |
| Forks | ⑂ 820 | ⑂ 64 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nnn if
- You weight community size — 22K stars and counting
- You want the BSD-2-Clause license terms
- Your stack matches C
- You value the larger contributor base for long-term maintenance
pick TreeMap-Disk-Visualizer if
- You want the TreeMap-Disk-Visualizer feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and TreeMap-Disk-Visualizer fits your workflow better
About nnn
nnn (n³) is a tiny, nearly zero config terminal file manager written in C and released under the BSD 2 Clause licence, built for developers, sysadmins, and command line users who want fast filesystem browsing, disk usage analysis, batch renaming, and file picking without leaving the shell.
About TreeMap-Disk-Visualizer
TreeMap Disk Visualizer is a free, MIT licensed Electron desktop application for macOS, Windows, and Linux that turns the contents of a disk into an interactive squarified treemap and a set of analysis charts, so individuals and small teams can see where storage went, understand how it is changing, and reclaim space.
read the full TreeMap-Disk-Visualizer overview →
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Frequently asked questions
Is nnn or TreeMap-Disk-Visualizer more popular?
nnn has 21,974 GitHub stars and TreeMap-Disk-Visualizer has 800. nnn has the larger community by that measure.
Are nnn and TreeMap-Disk-Visualizer free?
Both are open source. nnn is licensed under BSD-2-Clause and TreeMap-Disk-Visualizer under MIT. Neither carries a licence fee.
What is the difference between nnn and TreeMap-Disk-Visualizer?
nnn is written in C and TreeMap-Disk-Visualizer in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, nnn or TreeMap-Disk-Visualizer?
Choose nnn if you want the larger community (21,974 stars) or its BSD-2-Clause licence terms. Choose TreeMap-Disk-Visualizer if its feature set, stack or MIT licence fits better. Both are self-hostable.