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Sleek

Sleek is a free, open-source notes and writing app for Windows, macOS and Linux. Todo.txt manager for Linux, Windows and Mac, free and open-source (FOSS). It has 2,051 GitHub stars and is released under the MIT license. Its source code is on GitHub at ransome1/sleek.

github.com/ransome1/sleek (opens in a new tab)

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About Sleek

sleek is an open-source (FOSS) todo manager based on the todo.txt syntax. Stripped down to only the most necessary features, and with a clean and simple interface, sleek aims to help you focus on getting things done.

Install Sleek

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 com.github.ransome1.sleek

Package page (opens in a new tab)

Homebrew (macOS)
brew install --cask sleek-app

Package page (opens in a new tab)

Snap (Linux)
snap install sleek

Package page (opens in a new tab)

AUR (Arch Linux)

sleek on the AUR (opens in a new tab)

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FAQ

Sleek FAQ

Still curious? Email info@appsgit.com.

Is Sleek free and open source?

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

How do I install Sleek?

Flathub: flatpak install flathub com.github.ransome1.sleek, Homebrew: brew install --cask sleek-app, Snap: snap install sleek and the AUR package sleek. The commands are on this page. Installers are also on its GitHub Releases page (latest: v2.1.1).

Is Sleek still maintained?

The repository's most recent commit was on Oct 18, 2026. appsgit only lists apps whose repository had a commit in the last six months.