sleek is an open-source (FOSS) todo manager based on the todo.txt syntax. It's available for Windows, MacOS and Linux.
Cost / License
- Free
- Open Source (MIT)
Application typeApplication types
Platforms
- Mac
- Windows
- Linux
- Global




Kairo has been discontinued. Similar apps include Super Productivity, which is free and open source. Other options are Todoist, TickTick, Tasks.org and Planify. Task Management Tools like Kairo are a crowded field, with more than 25 alternatives for Android, iPhone, Mac, Linux and the web.
sleek is an open-source (FOSS) todo manager based on the todo.txt syntax. It's available for Windows, MacOS and Linux.




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