notion-alternative

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.

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.

Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.

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.

Open-source and local-first Slack and Notion alternative that puts you in control of your data

Open source alternatives to paid SaaS apps: Notion, Slack, Auth0, Vercel and more. Curated list with licenses and GitHub stars.

A single-file relational spreadsheet for you and your agent.

Build Notion-like, Craft-like, Coda-like, Medium-like editors with Yoopta

Open-source database & workspace for AI agents — structured data, durable knowledge, reusable skills, runnable apps, and human review on the writes that matter. Local-first and self-hostable.

End-to-end encrypted notes, tasks, files, passwords, journal and bookmarks. Keyed by a 12-word BIP-39 phrase: no email, no password, no account to leak. The full client source for web, desktop and mobile is published, along with the encryption (XChaCha20-Poly1305, HKDF-SHA256, Ed25519) and the threat model, so the privacy claims are falsifiable.

The next-generation Markdown editor and knowledge tool, made for writing with AI. Free and open source for macOS, Windows, Linux, iPhone and iPad.

Kition brings Markdown, DataTable, WhiteBoard, a tool-using AI agent, browser research, and visual workflows into one desktop workspace.

An open‑source technical wiki connected to the systems it describes

Notes as it should have been. Built for people who just want to write, without nonsense.

AI-powered Personal Knowledge Assistance in a folder. Built on the ICOR methodology. Plain markdown. Any LLM. Yours forever.

Write like nobody’s watching. Because they aren't.

A fast, local-first Notion alternative built with Rust + Tauri. Block editor, nested pages, full-text search, black-and-white UI, ~115 MB RAM.

✏ writedown - Free and Open Source Markdown Diary. Public Blogs and Private Notes.

Wysiwyg markdown whiteboard for note-taking and building team knowledge base.

Local-first like Obsidian, polished like Notion. Free & open source: wiki links, slash commands, to-dos, local or cloud sync, and MCP for AI. Web + Mac.