Looking for an open-source alternative to Obsidian? Below are 7 community-built tools that offer similar functionality — all free, open source, and ready to use or self-host. Ranked by GitHub stars.
Bring projects, wikis, and teams together with AI. AppFlowy is the ultimate AI-driven collaborative workspace, offering an open-source alternative to Notion while keeping control of your data.
A privacy-first, self-hosted, fully open-source personal knowledge management software, written in TypeScript and Golang, ideal for organizing and managing your information securely.
Logseq is a privacy-first, open-source platform designed for knowledge management and collaboration, focusing on providing a secure and effective tool for organizing and sharing information.
Trilium is a versatile platform to build your personal knowledge base, offering structured note-taking and organization features.
Your comprehensive publication tool equipped to manage various writing and publication tasks seamlessly.
An open source personal productivity platform leveraging Markdown and empowered by Lua scripting, enabling fast, flexible note-taking, task management, and extensibility for knowledge management workflows.
A curated collection of resources, links, projects, and ideas for individuals cultivating their digital notes and ideas on the public interwebs.
The top picks from this list are AppFlowy, Siyuan, Logseq — all maintained, free to use, and self-hostable.
Yes. Every tool listed here is open source and free to use. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Most of the alternatives listed are self-hostable. Check each tool's page for hosting details, system requirements, and licensing terms.
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