org-mode
If you need to convert files from one markup format into another, pandoc is your swiss-army knife. Pandoc can convert between many formats.
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A privacy-first, open-source platform for knowledge management and collaboration.
Logseq is a knowledge management and collaboration platform. It focuses on privacy, longevity, and user control. Logseq offers a range of powerful tools for knowledge management, collaboration, PDF annotation, and task management with support for multiple file formats, including Markdown and Org-mode, and various features for organizing and structuring your notes.
A GNU Emacs major mode for keeping notes, authoring documents, computational notebooks, literate programming, maintaining to-do lists, planning projects, and more — in a fast and effective plain text system.
Org is a highly flexible structured plain text file format, composed of a few simple, yet versatile, structures — constructed to be both simple enough for the novice and powerful enough for the expert.
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