Free document editor for
desktop and cloud.

Edit Markdown, MDX, JSON, and JSONL files locally on desktop. Fill official PDF forms in your browser and save them to your Fylune cloud account.

No account required Local files stay local Free core editor
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Create with context

Start a document beside the files that already explain the project.

Local, private, offline

Keep work on your device. Keep working offline.

Fylune opens the Markdown, MDX, JSON, and JSONL files already inside your folders and edits them locally. No account is required for the core editing loop.

The real Fylune editor showing a local project tree beside an open Markdown document
Same folder. Same files. A much calmer surface.
  • Local source of truthOrdinary files remain readable by Finder, Git, and AI tools.
  • Offline by defaultOpen, edit, and search without waiting for a network.
  • No account requiredYour core editor does not depend on a cloud login.

Free core editor

The editor costs nothing.

Basic local document editing is completely free: open folders, write, search, organize assets, and preview the files you already have.

Unlimited local documents Markdown, MDX, JSON, and JSONL editing Search and file navigation Built-in components
Paid plans are for optional cloud and advanced collaboration services, not access to your local files.
Photographs, film, and a local drive arranged together inside a blue project folder
docs/launch-plan.md../assets/launch-cover.png

Automatic asset management

Drop the asset. Keep writing.

Paste an image or add a video. Fylune stores it with the project and writes the relative Markdown path, so local files keep working without URL housekeeping.

  1. Drop or paste

    Bring in an image, video, or document from the way you already work.

  2. Fylune files it

    The asset is copied into the project, beside the Markdown that uses it.

  3. The link just works

    Fylune writes and resolves the relative path for you.

Complete Markdown

Markdown, fully awake.

Render and edit the parts that usually send you back to an IDE: Mermaid flowcharts, mind maps, KaTeX formulas, tables, checklists, media, and richer MDX blocks.

GFM tablesChecklistsCodeMediaMDX blocks
Safe preview
MD

Edit Markdown directly. Diagrams render with Mermaid and formulas with KaTeX. MDX and JavaScript never execute in this preview.

Live previewFlowchart

Product launch

Rendering diagram...

Edit the source yourself. This is the shared Fylune editor, not a screenshot.

“Real files. A full editor. Nothing standing between you and your own work.”

The Fylune product principle

macOS Alpha

Make room for better thinking.