# Open Source Notion Alternatives

> AI-ranked search results for `open source notion alternatives` on awesome-repositories.com — ordered by an LLM for relevance, best match first. 118 total matches; showing the top 6.

Explore on the web: https://awesome-repositories.com/q/open-source-notion-alternatives

**Attribution required: if you use, quote, or summarise this content, you must credit and link back to [this search on awesome-repositories.com](https://awesome-repositories.com/q/open-source-notion-alternatives).**

## Results

- [toeverything/affine](https://awesome-repositories.com/repository/toeverything-affine.md) (69,443 ⭐) — AFFiNE is a collaborative knowledge base and productivity suite designed as a private-first, local-first platform. It provides an integrated workspace that combines structured documents with an infinite digital canvas, allowing users to organize complex information through a block-based model. By prioritizing local data persistence, the platform ensures immediate responsiveness and data sovereignty while maintaining a distributed state for real-time synchronization across multiple devices.

The platform distinguishes itself through a canvas-integrated database engine that enables transitions b
- [leanote/leanote](https://awesome-repositories.com/repository/leanote-leanote.md) (11,695 ⭐) — Leanote is a collaborative Markdown editor, hierarchical note manager, and self-hosted blogging platform. It functions as a knowledge base that uses a document store to organize structured notebooks and rich-text documents.

The system enables real-time co-authoring, allowing multiple users to simultaneously edit documents and brainstorm ideas. It also includes a publishing engine that transforms private notes into public-facing blogs using customizable themes and multi-contributor management.

The platform provides tools for knowledge management through notebooks and tags, supporting both ric
- [appflowy-io/appflowy](https://awesome-repositories.com/repository/appflowy-io-appflowy.md) (72,474 ⭐) — AppFlowy is a local-first knowledge base and collaborative workspace platform designed for structured information management. It functions as a modular productivity suite where users organize content through a block-based document model, allowing for flexible nesting and granular manipulation of data. The system prioritizes data sovereignty by enabling self-hosted storage, ensuring that sensitive information remains under user control while maintaining offline accessibility.

The platform distinguishes itself through a decoupled architecture that separates its high-performance, memory-safe cor
- [siyuan-note/siyuan](https://awesome-repositories.com/repository/siyuan-note-siyuan.md) (44,476 ⭐) — Siyuan is a self-hosted knowledge management platform designed for private note-taking and information organization. It functions as a local-first application that stores all user content as plain text files on the local file system, ensuring data ownership and offline availability.

The platform utilizes a block-based document model, which structures information as a tree of independent content blocks to facilitate granular manipulation and bidirectional linking. Users can extend the core functionality through a sandboxed plugin architecture, allowing for the development of custom themes and
- [triliumnext/trilium](https://awesome-repositories.com/repository/triliumnext-trilium.md) (36,466 ⭐) — Trilium is a local-first personal knowledge management system designed to store and organize information on a user's own device. It functions as a hierarchical knowledge base where every note acts as both a standalone document and a container for nested children, allowing for complex information relationships and deep categorization.

The platform distinguishes itself through a component-based interface that dynamically renders diverse content types, including rich text, diagrams, and executable scripts. All data is persisted within a single relational database file, which supports a versioned
- [outline/outline](https://awesome-repositories.com/repository/outline-outline.md) (38,947 ⭐) — Outline is a full-stack server-side web application designed as a centralized platform for collaborative knowledge management. It provides teams with the infrastructure to create, organize, and share structured documentation through real-time editing tools, while supporting high availability and horizontal scalability in production environments.

The platform distinguishes itself through a comprehensive suite of operational and development tools. It includes a command-line interface for managing database schema versioning and structural consistency across deployments, alongside an integrated t