kayet app icon

Obsidian alternative

The free, open-source Obsidian alternative for Mac.

Obsidian is a powerful knowledge base built on Markdown files. If you mostly want to write, kayet gives you the same plain files in a far quieter, smaller window.

kayet vs Obsidian at a glance

kayetObsidian
PriceFree, no paid tiersFree, paid Sync and Publish
Source codeOpen source (Apache 2.0)Closed source
Where your text livesPlain files in any folder you pickPlain Markdown files in a vault
PlatformsmacOS on Apple SiliconMac, Windows, Linux, iPhone, iPad, Android
Built withRust and Tauri, the system web viewElectron
PluginsNone, by designLarge community plugin ecosystem
Linking notesRegular Markdown linksWikilinks, backlinks and graph view
PresentationsSlides from --- sectionsSlides (core plugin)

What will feel familiar

A folder of Markdown

Like a vault, kayet's workspace is just a folder. Open the same folder in both apps if you like.

Keyboard first

A command palette on ⌘K, a file finder on ⌘P and workspace search on ⌘⇧F.

Themes

Light and dark appearance with built-in themes like Nord, gruvbox and Solarized, or your own in a TOML file.

Where kayet is different

Quiet by defaultNo ribbon, no sidebars, no status bar. The file tree and preview are hidden until you ask for them.

Open sourceThe whole app is open source under the Apache License 2.0.

Small and fastA native Rust app using the macOS web view. It starts instantly and takes little space.

Nothing to configureNo plugins to choose and maintain. One TOML file holds every setting.

When Obsidian is the better choice

kayet does less on purpose. Stay with Obsidian if:

Questions

Can kayet open an Obsidian vault?

Yes. A vault is a folder of Markdown files, so you can open it as kayet's workspace with ⌘⇧O or kayet path/to/vault.

Does kayet support wikilinks and backlinks?

No. kayet focuses on writing and editing. Links are regular Markdown links.

Is kayet open source?

Yes, kayet is open source under the Apache License 2.0 and free to use, including commercially.

Start writing.

Free and open source. Requires macOS on Apple Silicon.

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Obsidian is a trademark of its respective owner. kayet is an independent project, not affiliated with or endorsed by the makers of Obsidian. The comparison reflects publicly available information as of October 2026 and may change.