Software · Office & notes

Nottodbox

Organize notes, to-dos and diaries.

Completely free
Linux
Open source

At a glance

Nottodbox is completely free: it is open source software, and every feature is available without paying or subscribing.

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

Nottodbox allows you to create and organize notes, to-dos, and diaries with rich text support in popular formats. In today's fast-paced world, we often have multiple tasks to handle simultaneously. That's why you can open multiple documents at once in the desired row x column layout. You can change the style and color scheme of the application to make it feel more like home. All customization options for documents/notebooks: You can mark a to-do as completed or uncompleted. You can add a content lock to a document to turn it into a diary. This prevents the backup from being changed. Documents are automatically saved unless you are editing a outdated diary and have disabled this feature. Additionally, a backup of the old content is always retained. Furthermore, auto-saves do not overwrite backups, meaning your manual changes remain intact. Documents can be in three formats: Markdown, HTML, and plain-text. Documents can be exported in multiple formats to your 'Documents' or 'Desktop' folder if you enable this feature. This allows you to edit them in other applications as well. You can pin your favorite documents/notebooks to the sidebar for easy access. You can change the background, text, and border colors of the document/notebook in three different states: normal, hover, and click And here's the most important part! All documents are associated with a notebook, and all options can follow it. All documents/notebooks can use the default settings or follow the global settings. With them, you can to customize so many things with ease.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 10 November 2026
Last technical check: 8 November 2026
Description from Flathub — AppStream (Flathub)

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