Best Open Source Alternatives to Smartsheet

Compare the best free and open-source alternatives to Smartsheet — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 4 alternatives

Smartsheet

Proprietary SaaS

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Platformsweb, mobile

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Smartsheet alternatives compared

Open-source alternatives to Smartsheet, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Worklenz	3,294	AGPL-3.0	Web	No	Nov 2026	Visit
GanttProject	1,117	GPL-3.0	LinuxmacOSWindows	No	Oct 2026	Visit
LibrePlan	360	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Nov 2026	Visit
dotProject	217	GPL-2.0	LinuxmacOSWindowsDocker	Yes	Nov 2024	Visit

Top open-source Smartsheet alternatives

Worklenz3,294AGPL-3.0

Worklenz is a self-hosted alternative to Monday.com and Asana, combining task boards, resource scheduling, time tracking, and project financial margins.

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vs Smartsheet: a free, open-source option you fully control, licensed AGPL-3.0.

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