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Deltachat Desktop

Deltachat Desktop is a free, open-source chat app for Windows, macOS and Linux. Decentralized private messenger with chat-shared tools and games for Desktop. It has 1,629 GitHub stars and is released under the GPL-3.0 license. Its source code is on GitHub at deltachat/deltachat-desktop.

github.com/deltachat/deltachat-desktop (opens in a new tab)

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About Deltachat Desktop

There is a third, WIP edition based on Tauri instead of Electron. It lives in its own repository — deltachat-tauri — and consumes this repository's frontend through a pinned upstream/ submodule. See Fediverse Thread and Delta Tauri - nlnet project.

Install Deltachat Desktop

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 chat.delta.desktop

Package page (opens in a new tab)

Homebrew (macOS)
brew install --cask deltachat

Package page (opens in a new tab)

AUR (Arch Linux)

deltachat-desktop-git on the AUR (opens in a new tab)

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FAQ

Deltachat Desktop FAQ

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Is Deltachat Desktop free and open source?

Yes. Deltachat Desktop'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 Deltachat Desktop?

Flathub: flatpak install flathub chat.delta.desktop, Homebrew: brew install --cask deltachat and the AUR package deltachat-desktop-git. The commands are on this page. Installers are also on its GitHub Releases page (latest: v2.65.0).

Is Deltachat Desktop still maintained?

The repository's most recent commit was on Oct 28, 2026. appsgit only lists apps whose repository had a commit in the last six months.