- AppFlowy by AppFlowy-IO, 79k stars. Open source workspace for notes, wikis, and projects, with local data control
- AFFiNE by toeverything, 75k stars. Open-source workspace for docs, whiteboards and planning with CRDT sync
- memos by usememos, 64k stars. Self-hosted note-taking app organized as a personal timeline
- joplin by laurent22, 57k stars. Note-taking app with sync for Windows, macOS, Linux, Android and iOS
- siyuan by siyuan-note, 47k stars. Local-first markdown note app with AI agent access and self-hosted sync
- logseq by logseq, 46k stars. Local-first outliner for notes and knowledge graphs in Markdown or Org-mode
- open-notebook by lfnovo, 42k stars. Self-hostable research notebook that chats with your sources, an open NotebookLM alternative
- outline by outline, 41k stars. Team knowledge base with real-time collaborative editing and markdown support
- anki by ankitects, 33k stars. Desktop flashcard program using spaced repetition, with a Rust core
- karakeep by karakeep-app, 31k stars. Self-hostable bookmark manager for links, notes and images with AI tagging
- tolaria by refactoringhq, 21k stars. Desktop app for managing markdown-based knowledge bases
- SurfSense by MODSetter, 17k stars. Private NotebookLM alternative: an agent that researches and edits documents
- claude-obsidian by AgriciDaniel, 16k stars. Claude Code setup that files sources into a linked Markdown vault for Obsidian
- milkdown by Milkdown, 12k stars. Plugin-based WYSIWYG markdown editor framework built on ProseMirror
- Lepton by hackjutsu, 10k stars. Electron app for saving and managing code snippets as gists
- anarlog by fastrepl, 9.9k stars. Local-first desktop app for AI meeting notes and transcription
- obsidian-second-brain by eugeniughelbur, 5.3k stars. Persistent memory for coding agents, stored as markdown in Obsidian
- colanode by colanode, 5.2k stars. Local-first chat and knowledge base app, an alternative to Slack and Notion
- open-knowledge by inkeep, 4.8k stars. Markdown editor and knowledge base with AI features and agent skills
- files.md by zakirullin, 4.2k stars. Minimal desktop app for writing and browsing markdown files
- My-Brain-Is-Full-Crew by gnekt, 3.9k stars. Personal second brain setup that covers health and habits alongside notes
- edgeever by tianma-if, 3.2k stars. Knowledge base with native MCP support, runs on Cloudflare Workers or Docker
- EverRoom by NxcoreAI, 3.0k stars. Notes workspace that keeps project context and decisions for AI assistants
- PaperTodo by snownico0722, 2.8k stars. Minimal Windows sticky notes with to-dos and Markdown
- penecho by penecho, 2.5k stars. Shared canvas for handwriting, equations, and diagrams, with AI help
- riddle by MaximeRivest, 1.9k stars. Diary app for reMarkable Paper Pro that answers handwritten entries in ink
- ExcalidrawZ by chocoford, 1.9k stars. Native Excalidraw app for macOS and iOS in SwiftUI
- anchor by ZhFahim, 1.8k stars. Offline-first, self-hostable note taking app
- yogurt by FrigadeHQ, 1.5k stars. Private AI meeting notes app that runs models locally
- Daily_You by Demizo, 1.4k stars. Flutter journal app for private diary entries and mood tracking
- compass by AgriciDaniel, 1.0k stars. Obsidian vault setup for daily questions, planning, habits and journaling
- memex by memex-lab, 839 stars. Local-first journal app for iOS and Android that organizes notes with AI agents
- Paperling by Razee4315, 599 stars. Minimal distraction-free markdown editor built with Tauri and React
- betterwispr by opennookorg, 537 stars. Offline macOS dictation: hold a key, speak, and text is typed into any app
- avenoxbeyin by avenoxai, 468 stars. Obsidian and Claude Code setup with memory that persists across sessions
- Skykeep by YashwanthKamireddi, 416 stars. Native Windows and Linux clients for iCloud notes, reminders, calendar and more
- ra-h_os by bradwmorris, 269 stars. TypeScript app with no published description
- ScreenMind by ayushh0110, 249 stars. Local app that records screen history and lets you search and chat with it
- health-md by CodyBontecou, 236 stars. Apple Health data exported as markdown notes, for Obsidian and similar
- nippo by nwiizo, 213 stars. Daily work log manager written in Rust
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