Open Source Note Taking & Knowledge Management Tools Projects

Open-source knowledge base combining note-taking, whiteboard, and project planning in one workspace.

Offline-first, self-hostable note-taking app with rich text, tags, attachments, and cross-device sync via Docker.

A self-hosted personal knowledge base that turns markdown notes into an AI-augmented knowledge graph with semantic search and wiki synthesis.

A simple local-first note-taking app for your plain .md files with Telegram bot access.

Real-time collaborative markdown note editor you can self-host — write together with rich formatting and seamless sharing.

A fast, privacy-first local markdown note-taking app built with Tauri and SvelteKit. Your notes stay as plain .md files on your device.

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

Self-hosted tasks and notes management with offline support, push reminders, and full-text search in a single Docker container.

Lightweight self-hosted app for managing personal file-based notes and checklists.

Journal is a simple self-hosted journal and blog API written in Go, using SQLite for storage. Build custom clients, capture daily entries, and own your writing on your own server.

An Obsidian plugin that provides IDE-style LaTeX autocomplete with English and Chinese keyword search for math formulas.

A Markdown note-taking web application designed for simplicity with vaults, collaboration, and PWA support.

Mnemo is a free, open-source desktop study app combining block-based notes, FSRS flashcards, and mind maps with no accounts or tracking.

A self-hosted knowledge base for note-taking with markdown support, Zettelkasten methodology, and Docker deployment.

Open-source, privacy-first alternative to Google NotebookLM with multi-model AI support, podcast generation, and self-hosting.

AI-native, local-first markdown editor and LLM wiki with built-in integrations for Claude, Codex, and other agents.

Open source local-first editor for Markdown, docs, rich files, and AI agents — with built-in terminal and Git review.

A free, open-source Android app for markdown notes and task lists with reminders, file attachments, and optional Nextcloud sync.

Open-source desktop AI coworker with a living knowledge graph, built-in email, browser, meeting notes, and code mode.

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.

Self-hosted, programmable knowledge base: plain Markdown notes with live queries, backlinks, and an embedded Lua scripting runtime.

Self-hosted AI transcription and intelligent note-taking platform that turns audio recordings into organized, searchable notes with speaker identification.

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

Open-source local-first Markdown workspace for macOS with wiki, AI editing, and encrypted sync.

Privacy-first, self-hosted note-taking platform with markdown support, tagging, and built-in AI — a lightweight alternative to Notion and Obsidian.