A simple, fast, local-first Markdown file manager with live preview, checkbox interactivity, dark mode, categories, and file export.
Built for people who want to quickly paste, edit, and organize Markdown notes without needing an account, server, or complex setup.
Everything stays inside your browser — powered by localStorage and pure JavaScript.
- 📝 Live Markdown editing with GitHub-flavored Markdown (GFM) support
- ✅ Interactive task lists (checkboxes are clickable and saved)
- 🌙 Dark mode, editor layout, and visibility settings are saved automatically
- 🖥️ Switch between stacked or side-by-side layout, or hide the editor for a clean, interactive view
- ✍️ Toggle editor visibility with a button or
Ctrl+Eshortcut - 🗂️ File saving, loading, and deleting inside your browser
- 📂 Category manager with creation, deletion, reassignment, and per-category file filtering — fully local and persistent
- 🧹 Cleanup utility to batch-delete saved files
- 📤 Markdown export that updates task list states before download
- 🔒 Fully local — no servers, no uploads, no logins
- Open
mf.htmlin any modern browser (Chrome, Firefox, Edge, etc.). - Paste or write Markdown into the editor.
- Optionally upload
.mdfiles from disk. - Save your work into browser storage.
- Click on checkboxes to track tasks — your changes are remembered.
- Export Markdown files when needed.
- Organize notes into categories for better browsing.
- Use the “Create Category” or “Delete Category” buttons to manage your note groups. When saving a new file, select or create a category via a visual interface.
Simple tools for serious work.
MarkFolder is designed to stay lightweight and understandable.
No sync, no plugins, no distractions. Just your Markdown, your tasks, your structure — fully under your control.
- Search and filter notes
- Tagging system alongside categories
- Offline installable (PWA)
- Drag-and-drop reordering of files
- Markdown-to-HTML export option
Licensed under the MIT License — see LICENSE for details.