Open Source #markdown Projects
Discover open source software tagged with markdown.
Jotted
Self-hosted tasks and notes management with offline support, push reminders, and full-text search in a single Docker container.

Voiden
Design, test and document APIs in plain Markdown with a git-native, offline-first approach.

Quillpad
A free, open-source Android app for markdown notes and task lists with reminders, file attachments, and optional Nextcloud sync.
Google Keep
Mnemo
Mnemo is a free, open-source desktop study app combining block-based notes, FSRS flashcards, and mind maps with no accounts or tracking.
Quizlet
NoteDiscovery
A self-hosted knowledge base for note-taking with markdown support, Zettelkasten methodology, and Docker deployment.

HedgeDoc
Real-time collaborative markdown note editor you can self-host — write together with rich formatting and seamless sharing.
Google Docs
TinaCMS
A fully open-source headless CMS with Git support, Markdown editing, and live visual preview for React-based sites.
Contentful
Golocron
Golocron is a plug-and-play blogging and wiki system designed for Go backends. Markdown support, live preview, and a clean UI for quick content sites.
WordPress
Kova
Open source desktop Markdown presentation editor with live preview, themes, and PPTX export — a self-contained alternative to PowerPoint.
Microsoft PowerPointHugy
A desktop GUI application for the Hugo static site generator, designed for content editors without command-line knowledge.

Marp CLI
The official CLI for the Marp Markdown presentation ecosystem — write slides in Markdown and convert to HTML, PDF, PPTX, or images.
Microsoft PowerPoint
Many Notes
A Markdown note-taking web application designed for simplicity with vaults, collaboration, and PWA support.

kuku
Open-source local-first Markdown workspace for macOS with wiki, AI editing, and encrypted sync.
Obsidian
Files.md
A simple local-first note-taking app for your plain .md files with Telegram bot access.

Joplin
Privacy-focused, open-source note-taking and to-do app with end-to-end encryption and multi-device sync.

WriteFreely
Minimalist, federated blogging platform for writers who want a clean, distraction-free space to publish.
WordPress
Docmost
Open-source collaborative wiki and documentation platform, an alternative to Confluence and Notion.
Confluence
Atomic
A self-hosted personal knowledge base that turns markdown notes into an AI-augmented knowledge graph with semantic search and wiki synthesis.
Pinboard
Scratch
Scratch is a minimalist, offline-first markdown note-taking app for macOS, Windows, and Linux. Plain text files, keyboard-driven, with no cloud lock-in or account required.

TriliumNext Notes
Hierarchical personal knowledge base with powerful note-taking, rich text editing, and scripting capabilities.

BookStack
Open source wiki and documentation platform with a books/shelves/pages model — a simple, self-hostable alternative to Confluence and Notion.

Pad
Local-first project management for developers and AI agents, with a CLI, web UI, SQLite backend, and native skills for Claude Code, Cursor, Codex, and more.
Linear
HelixNotes
A fast, privacy-first local markdown note-taking app built with Tauri and SvelteKit. Your notes stay as plain .md files on your device.
Obsidian
memos
Privacy-first, self-hosted note-taking platform with markdown support, tagging, and built-in AI — a lightweight alternative to Notion and Obsidian.
ObsidianAFFiNE
Open-source knowledge base combining note-taking, whiteboard, and project planning in one workspace.