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Software · Office & notes

Notorious

Notorious is a note-taking program, available on Linux: Markdown support, syntax highlighting, themes and dark mode.

  • Completely free
  • Linux
  • Open source

Overview

Notorious is a note-taking program, available on Linux.

Features described in its Flathub listing and on its official website: Markdown support, syntax highlighting, themes and dark mode.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Keyboard centric notes” — Flathub, 10 November 2026
  • “Markdown powered (if you want to)” — official website, 10 November 2026
  • “In Notorious you can write your notes however you want, but if you like Markdown, you can easily enable syntax highlighting.” — Flathub, 10 November 2026
  • “Dark mode” — official website, 10 November 2026

At a glance

All of Notorious is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

Notorious is a keyboard centric notes app Notorious can be controlled entirely with your keyboard. No need to move your hand to the mouse, just open it up and dump your brain. In Notorious you can write your notes however you want, but if you like Markdown, you can easily enable syntax highlighting. No need to worry about saving. When you change note or exit the app whatever you wrote gets automatically saved. No need for cumbersome online sync features. Just choose a folder on your disk and that's it. Of course nothing stops you froms syncing that folder with your service of choice.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 8 November 2026
  • Description from Flathub — AppStream (Flathub)

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