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Zeal

Zeal is a free, open-source desktop app for Windows and Linux. Offline documentation browser. Your personal reference library, searchable in an instant. It has 12,856 GitHub stars and is released under the GPL-3.0 license. Its source code is on GitHub at zealdocs/zeal.

github.com/zealdocs/zeal (opens in a new tab)

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About Zeal

Zeal is an offline documentation browser: your personal reference library, searchable in an instant and available without a connection. Originally inspired by Dash, it supports the same docset format.

Install Zeal

Package names found in the project's README. Each links to its package page so you can check the publisher first.

Flathub (Linux)
flatpak install flathub org.zealdocs.Zeal

Package page (opens in a new tab)

Snap (Linux)
snap install zeal

Package page (opens in a new tab)

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FAQ

Zeal FAQ

Still curious? Email info@appsgit.com.

Is Zeal free and open source?

Yes. Zeal's source code is public on GitHub under the GPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.

How do I install Zeal?

Flathub: flatpak install flathub org.zealdocs.Zeal and Snap: snap install zeal. The commands are on this page. Installers are also on its GitHub Releases page (latest: v0.9.1).

Is Zeal still maintained?

The repository's most recent commit was on Oct 27, 2026. appsgit only lists apps whose repository had a commit in the last six months.