Your second brain, self-hosted. Notion alternatives, wiki engines, and personal knowledge management tools.
Showing 25–48 of 108 repositories
Laverna
Laverna is a JavaScript note taking application with Markdown editor and encryption support. Consider it like open source alternative to Evernote.
reorproject
Private & local AI personal knowledge management app for high entropy people.
xwmx
CLI and local web plain text note‑taking, bookmarking, and archiving with linking, tagging, filtering, search, Git versioning & syncing, Pandoc conversion, + more, in a single portable script.
AgriciDaniel
Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowledge graph of plain Markdown you own. AI note-taking, personal knowledge management (PKM), and an open-source Notion alternative. Based on Karpathy's LLM Wiki pattern.
glushchenko
Notes manager for macOS/iOS
jrnl-org
Collect your thoughts and notes without leaving the command line.
taniarascia
📝 A web-based notes app for developers.
massCodeIO
A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, and dev tools in one local-first app.
mbrlabs
Infinite canvas drawing/whiteboarding app for Windows, Linux and macOS. Made with Godot.
standardnotes
Think fearlessly with end-to-end encrypted notes and files. For issues, visit https://standardnotes.com/forum or https://standardnotes.com/help.
athensresearch
Athens is no longer maintainted. Athens was an open-source, collaborative knowledge graph, backed by YC W21
pbek
QOwnNotes is a plain-text file notepad and todo-list manager with Markdown support and Nextcloud / ownCloud integration.
silverbulletmd
An open source personal productivity platform built on Markdown, turbo charged with the scripting power of Lua
heyman
A dedicated scratchpad for power users
the-open-agent
⚡️next-generation personal AI assistant powered by LLM, RAG and agent loops, supporting computer-use, browser-use and coding agent, demo: https://demo.openagentai.org
nanbingxyz
5ire is a cross-platform desktop AI assistant, MCP client. It compatible with major service providers, supports local knowledge base and tools via model context protocol servers .
tagspaces
TagSpaces is an offline, open source, document manager with tagging support
wikimedia
🌻 The collaborative editing software that runs Wikipedia. Mirror from https://gerrit.wikimedia.org/g/mediawiki/core. See https://mediawiki.org/wiki/Developer_access for contributing.
colanode
Open-source and local-first Slack and Notion alternative that puts you in control of your data
MaggieAppleton
Resources, links, projects, and ideas for gardeners tending their digital notes on the public interwebs
WorldBrain
Browser extension to curate, annotate, and discuss the most valuable content and ideas on the web. As individuals, teams and communities.
dokuwiki
The DokuWiki Open Source Wiki Engine
typedb
TypeDB: Built for systems, not records
nuttyartist
Fast and beautiful note-taking app written in C++. Write down your thoughts.