ZenNotes is a keyboard-first Markdown notes app with a shared product core and multiple runtimes:
Cost / License
- Free
- Open Source (MIT)
Platforms
- Mac
- Windows
- Linux

The top-rated alternative to Obsidian is Logseq, which is free and open source. People also recommend Zettlr, sNotes – Students Notes, Anytype and Joplin. There's no shortage of Note-taking Tools like Obsidian, with more than 100 alternatives for Mac, the web, Windows, Linux and Android.
ZenNotes is a keyboard-first Markdown notes app with a shared product core and multiple runtimes:

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