Karui ToDo
Karui ToDo is a free, open-source notes app for Android. 120kB aesthetic terminalesque todo list app with calendar, offline sync and widg. It has 139 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid.
- Android
- Notes & to-do
- Actively maintained
About Karui ToDo
An open source, privacy focussed, 120kB aesthetic Google Tasks alternative todo list app to quickly jot down things to do. Inspired by the system-24 theme and the Windows Mobile design system, this app's design is evolving into being even more eye-catching. This app never connects to the internet, you can setup sync to use Karui on other devices or alongside other markdown/text editors as the synced file is a markdown file. To use the widgets, first setup sync as the widget simply reads and writes to the markdown file, thus being energy efficient.
Privacy and F-Droid
F-Droid builds Karui ToDo from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Screenshots
Screenshots from the app's F-Droid listing.
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What is Karui ToDo?
Karui ToDo is a free, open-source notes app for Android. 120kB aesthetic terminalesque todo list app with calendar, offline sync and widg. It has 139 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid.
Is Karui ToDo free and open source?
Yes. Karui ToDo's source code is public on GitHub under the GPL-3.0-only license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install Karui ToDo?
You can install Karui ToDo from F-Droid (package io.github.ronynn.karui); the links are on this page. Its GitHub repository also publishes releases (latest: 2.0).
Is Karui ToDo still maintained?
The repository's most recent commit was on Oct 6, 2026. Its F-Droid listing was last updated on Oct 5, 2026. appsgit only lists apps whose repository had a commit in the last six months.