sleek

A clean, open-source to-do manager for Windows, macOS and Linux based on the todo.txt format, so your list stays a plain text file.

2.1k stars, 140 forks TypeScript On GitHub since October 2020

Visit website View on GitHub How to run it

What is sleek?

sleek is a desktop app for the todo.txt format, where each task is one line in a text file with priority, contexts, projects and due dates written in a simple syntax. It supports all classic todo.txt attributes and adds features such as filters, grouping, recurring tasks and several lists, while keeping the interface stripped down to the essentials. Because the list is a text file, you can sync it with any service and edit it with other todo.txt apps on your phone. Thirteen interface languages are available.

Good fit if

  • You already use todo.txt or want a format that will outlive any app.
  • You want a focused desktop to-do list without accounts.

Look elsewhere if

  • You prefer a command-line task manager: Taskwarrior.
  • You want projects and areas in a web app: tududi.

Before you adopt it

sleek is MIT-licensed and free, with no account or cloud service involved, and it is maintained by a small group led by its creator.

Drafted with AI from the project's README and repository data, then checked against that data on 30 October 2026. Report a correction

sleek health: is it still maintained?

67 of 100, actively developed

  • Activity
    45 commits in the last 90 days, the latest on 18 October 2026.
    20 / 30
  • Contributors
    3 people wrote the 45 commits of the last 90 days; the most active wrote 51% of them.
    8 / 20
  • Releases
    6 releases in the last 12 months; the latest, v2.1.1, on 18 October 2026.
    17 / 20
  • Replies to issues
    Maintainers answered 93% of recent issues, with a median first reply after 2 days.
    17 / 20
  • Security practices
    No OpenSSF Scorecard for this repository yet, so this part gets a neutral score.
    5 / 10

Read from GitHub on 1 November 2026. How the score works

sleek license: is it open source?

sleek uses MIT, an open-source license approved by the OSI.

  1. October 2020First published on GitHub.
  2. TodayMIT.

How to run sleek yourself

Docker
No Docker files in the repository
Compose file
None in the repository
Setup effort
Not rated: no compose file to judge from
Kubernetes
No Helm chart in the repository
Desktop and mobile
Builds for Linux, Windows, macOS, including ARM in GitHub releases
Interface languages
13 languages

Install instructions: github.com or the README on GitHub.

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Questions about sleek

Is sleek open source?

Yes. sleek is published under MIT, an OSI-approved open-source license.

Is sleek still maintained?

Its health score is 67 of 100 (actively developed). It had 45 commits in the last 90 days, the latest on 18 October 2026, and its latest release came out on 18 October 2026.

How do I run sleek?

You can run it as an app for Linux, Windows, macOS, including ARM. The README on GitHub has the exact steps.

What are the alternatives to sleek?

Close alternatives in the Project & task management category include Super Productivity, Kan, WeKan.