Folio

Folio

A desktop markdown workspace for the files already on your disk. Open a folder, browse it like Finder, and write with a live preview beside you — no account, no sync, nothing leaves your machine. Download the latest release for your platform.

v0.1.3 · released August 14, 2026 · Release notes

Browse a folder like Finder

Name, date, size and kind, directories first. Click into a folder, not a path — everything sits where it already lives on disk.

The Folio file list showing a Notes workspace with folders, markdown files and modified dates

Grid view when you want the shape

The same listing as large icons, so a vault of notes is scannable at a glance.

Folio grid view of a Notes workspace with folder and markdown file icons

Write with the preview beside you

CodeMirror on the left, the rendered page on the right — GFM tables, KaTeX maths and frontmatter badges, scrolling together.

Folio split editor showing a weekly review in CodeMirror beside its live preview with maths and a table

The whole tree, lazily loaded

Expand as deep as you like — each folder lists only when you open it.

The Folio sidebar file tree expanded into journal/2026 and resources/recipes

Sort the way you think

Name, dates, size or kind — directories stay on top, the way Finder does it.

The Folio sort menu open over a file listing, showing five sort fields

Made to match how you write

Font, wrapping, line numbers, autosave delay, and whether frontmatter shows in the preview.

Folio settings showing theme, font size and editor toggles

No account. Open a folder.

Pick a directory and start writing. Recents are there when you come back — nothing left the machine.

The Folio landing screen with Open Folder and a list of recent workspaces