1 Free and Open-source Todo.txt Apps for macOS (Intel and Apple Silicon)

1- Sleek

open-source and to-do app based on todo.txt.

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.

All classic todo.txt attributes are supported and enhanced by additional features. Creating todos is straightforward, and tag-based filtering in tandem with highly customisable grouping and smart full-text search allow for rapid information retrieval. Completed todos can be hidden or archived into separate done.txt files. Easy integration with other todo.txt apps is facilitated by continuously scanning todo.txt files for changes.

sleek is available for Windows, MacOS and Linux, and in several languages. For a detailed list of features, see below. Many useful information can be found in sleek's wiki.

It has a modern and simple GUI and many functions which help users get things done, it can be used in full-text search as filters or to group and sort tasks list.

It is easy to integrate sleek with other todo.txt apps, it can be filtered by contexts, project, and properties, has a dark and light mode, hyperlinks are detected automatically on it, it supports multi-line to-dos, filters, and more.

Furthermore, it is released under the MIT licensed and written with JavaScript, CSS, and more.

Read about Sleek 's features, license, platforms, and more.