cat-notes

Crowi - The Markdown Wiki - Empower the team with sharing your knowledge

Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.

Your web application for managing personal data.

Build your personal knowledge base with Trilium Notes

📚 The open-source, offline-first Notion, Obsidian & Confluence alternative. Advanced Markdown, multi-tenant teams, OIDC/SSO, and local S3 backups. Deploy in one command.

A fully open source & end-to-end encrypted note taking alternative to Evernote.

📓 eLabFTW is the most popular open source electronic lab notebook for research labs.

Think fearlessly with end-to-end encrypted notes and files. For issues, visit https://standardnotes.com/forum or https://standardnotes.com/help.

Self-hosted, semantically-connected personal knowledge base

Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.

Lightweight but powerful alternative for managing your personal, file based, notes and checklists.

TagSpaces is an offline, open source, document manager with tagging support

Powerful note-taking without the hassle.

An open-source, privacy-first, self-hosted knowledge workspace where humans and AI agents work together 开源、隐私优先、自托管的知识工作空间，让人与智能体在此协作

An open source personal productivity platform built on Markdown, turbo charged with the scripting power of Lua

Local-first, open-source AI assistant for your data. Unify tasks, notes, docs, photos, and bookmarks. Private, self-hosted, and extensible via APIs.

Open-source, self-hosted note-taking tool built for quick capture. Markdown-native, lightweight, and fully yours.

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.

Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.

A self-hosted, database-less note taking web app that utilises a flat folder of markdown files for storage.