Software · Office & notes

TreeSheets

TreeSheets is a diagramming program, available on Linux. Old edition (2011).

Completely free
Linux
Open source
Old edition (2011)

Old edition: the latest known version (2.23.7) dates from 11 November 2011. It is no longer recommended as current software; the package date does not mean the software is still maintained.

Official website

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub
License: Zlib — Open source (permissive)confirmed by Flathub
Open source: Yes
Commercial use: Yesconfirmed by Flathub, Official plan pages (pricing, licence, terms)
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: Not applicable
Ads: not documented
Platforms: LinuxEstablished by Linux: Flathub
Publisher: Wouter van Oortmerssen
Latest version: 2.23.7 (11 November 2011)
Package republished on: 8 November 2026
Source code: github.com/aardappel/treesheets

Overview

TreeSheets is a diagramming program, available on Linux.

Old edition: the latest known version (2.23.7) dates from 2011; it is no longer presented as current software.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“TreeSheets is a "hierarchical spreadsheet" that is a great replacement for spreadsheets, mind mappers, outliners, PIMs, text editors and small databases.” — GitHub, 10 November 2026

At a glance

All of TreeSheets is free: no feature is locked behind a paid plan, and its code is open.

Its licence (Zlib) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
Commercial use allowed

About

A "hierarchical spreadsheet" that is a great replacement for spreadsheets, mind mappers, outliners, PIMs, text editors and small databases. Suitable for any kind of data organization, such as todo lists, calendars, project management, brainstorming, organizing ideas, planning, requirements gathering, presentation of information, etc. It's like a spreadsheet, immediately familiar, but much more suitable for complex data because it's hierarchical. It's like a mind mapper, but more organized and compact. It's like an outliner, but in more than one dimension. It's like a text editor, but with structure.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 9 November 2026
Last technical check: 7 November 2026
Description from Flathub — AppStream (Flathub)

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