A self-hosted, file-based Markdown editor

Markoun is a lightweight, self-hosted, and entirely file-based Markdown editor designed for users who prioritize privacy and simplicity.

The UI layout of Markoun is inspired by Haptic and Obsidian — both excellent Markdown editing tools.

Features

• Clean UI: Minimal interface with smooth animations and complete core editing features

• File-Based Architecture: Works directly on local files — no database, no indexing, fully portable

• LaTeX support: Live Markdown preview with built-in LaTeX support

• Image Upload: Supports file upload and Ctrl + V clipboard image paste

• Rich Configuration: Flexible config.yaml options for logging, authentication, and file control

Deployment

You can deploy Markoun using Docker:

export MARKOUN_PORT=10000
export MARKOUN_ROOT=./

touch ${MARKOUN_ROOT:-./}/config.yaml

docker run -itd --name markoun \
  --restart unless-stopped \
  -p ${MARKOUN_PORT:-10000}:80 \
  -v ${MARKOUN_ROOT:-$(pwd)}/data:/app/data \
  -v ${MARKOUN_ROOT:-$(pwd)}/config.yaml:/app/config.yaml \
  tropicalalgae/markoun:latest

Then run docker logs -f markoun to check the logs for the default administrator password.

You can also create a new regular user from the homepage.

Volume Explanation

Path	Description
/app/data	Directory where Markdown files are stored.
/app/config.yaml	Main configuration file.

Configuration

Markoun is configured via a config.yaml file. Below are some important options:

Key	Description	Default
DEBUG	Enables/disable debug-level logging for the backend service.	false
ACCESS_TOKEN_DEFAULT_EXPIRE_MINUTES	Standard Session Lifetime: Duration (in minutes) a user remains logged in before the session expires.	1440
ACCESS_TOKEN_EXTENDED_EXPIRE_MINUTES	Persistent Session Lifetime: Duration (in minutes) for users who select "Remember Me" during login.	43200
DISPLAYED_FILE_TYPES	File Filter: A list of file extensions that the editor is permitted to display.	["md", "png", "jpg", "jpeg", "bmp", "svg"]

For more configurable options, see config.py

Editor Details

Relative Image Paths: When inserting images into a Markdown file, image paths are generated relative to the Markdown file’s location — not the project root. This ensures portability and correct rendering even if folders are moved.

Rename by Long Press: Long-press on a file or folder name in the sidebar to rename it.

File Visibility Rules: By default, the sidebar displays only Markdown files and common image formats. To show additional file types, modify DISPLAYED_FILE_TYPES in config.yaml.

System configuration: The administrator can enable or disable user registration in the settings section of the sidebar.

Limitations & Roadmap

• Image security: static image routes currently lack authentication checks
• File system architecture: design can be further optimized
• UI polish: incomplete animation feedback and styling inconsistencies
• Frontend refactoring: codebase requires further optimization
• File synchronization: support syncing files with a remote source
• Version management: introduce file versioning with history tracking and restore capability

License

This project is licensed under the MIT License.