tagspaces
TagSpaces is an offline, open source, document manager with tagging support
WorldBrain
Browser extension to curate, annotate, and discuss the most valuable content and ideas on the web. As individuals, teams and communities.
nuttyartist
Fast and beautiful note-taking app written in C++. Write down your thoughts.
Achilng
花笺，轻量优雅的跨平台桌面便签工具，支持 Markdown 编辑与预览
freeplane
Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way.
GitJournal
Mobile first Note Taking integrated with Git
archivy
Archivy is a self-hostable knowledge repository that allows you to learn and retain information in your own personal and extensible wiki.
artempyanykh
Write Markdown with code assist and intelligence in the comfort of your favourite editor.
dullage
A self-hosted, database-less note taking web app that utilises a flat folder of markdown files for storage.
SamurAIGPT
A personal knowledge base that builds and maintains itself. Drop in sources — Claude (or Codex/Gemini) reads them, extracts knowledge, and maintains a persistent interlinked wiki. Works with Claude Code, Codex, OpenCode, Gemini CLI. No API key needed.
dnote
A simple command line notebook
Nriver
Translation for Trilium Notes. Trilium Notes 中文适配, 体验优化
federicoiosue
Open source note-taking application for Android
eugeniughelbur
Cross-CLI skill for Obsidian: turn your vault into a living AI-first second brain across Claude Code, Codex, Gemini, and OpenCode. 43 commands - now with /obsidian-architect to document your codebase, key-less web research, Google Calendar, and self-rewriting notes.
revezone
A lightweight local-first graphic-centric productivity tool to build your second brain. Supporting Excalidraw/Tldraw whiteboard and notion-like note. 一款以图形为中心、轻量级、本地优先的用于构建第二大脑的效率工具。支持 Excalidraw、Tldraw 白板和类 Notion 笔记。
gamosoft
Your Self-Hosted Knowledge Base
batnoter
An open source, markdown-based, self-hosted note taking webapp.
satellitecomponent
Fractal Graph-of-Thought. Rhizomatic Mind-Mapping for Ai-Agents, Web-Links, Notes, and Code.
Xed-Editor
Advanced Text Editor for Android
tiddly-gittly
TidGi is an privacy-in-mind, automated, auto-git-backup, freely-deployed knowledge management Desktop note app, based on Tiddlywiki, with REST API for web-clipping and Anki connect. 「 太记 」是一个基于「 太微 TiddlyWiki 」的知识管理桌面应用，能保护隐私内容、高级自动化、自动Git云备份、部署为博客，且可通过RESTAPI与Anki等应用连接。（迭代开发中欢迎试用，开发进度见下方链接）(Under active development, see website below for details)
LinwoodDev
🎨 Powerful, minimalistic, cross-platform, opensource note-taking app
akosbalasko
Yarle - The ultimate converter of Evernote notes to Markdown
Smaug6739
Self-hosted knowledge base with extended Markdown, Kanban, OIDC/SSO, PWA & offline support. Deploy in one command.
zhaopengme
A modern note taking app based on GIT that does not require a local GIT environment.