
Open-source AI knowledge management tool
Logseq is a free, open-source, privacy-first knowledge management tool that combines outliner-based note-taking with powerful bi-directional linking, graph visualization, and built-in spaced repetition. All data is stored locally in plain Markdown or Org-mode files, giving users complete control over their information.
Logseq organizes everything as indentable bullet points in an outliner structure, with bi-directional links created by typing double brackets. Key features include a daily journal that automatically opens a fresh page each day, a graph view that visually maps connections between all notes, built-in flashcards with spaced repetition for active learning, and whiteboards for visual diagramming and mind mapping. Advanced querying lets users pull information across their entire knowledge base, and plugins extend functionality through a rich community ecosystem.
Logseq is ideal for privacy-conscious knowledge workers, students, researchers, and developers who want full ownership of their data without vendor lock-in. Its open-source nature and local-first storage make it particularly appealing to users who value transparency, and the built-in spaced repetition system is a standout for students and lifelong learners.
Download Logseq for free from logseq.com on macOS, Windows, Linux, iOS, or Android. Your notes are stored locally as plain Markdown files, so you own your data from day one. Start writing in the daily journal, use [[double brackets]] to link concepts, and explore the graph view as your knowledge base grows. Optionally subscribe to Logseq Sync for encrypted cloud syncing across devices.
Pricing & Accessibility: Logseq is completely free and open-source. Optional paid services include Logseq Sync at approximately 5 EUR per month for end-to-end encrypted cloud syncing, and a Sponsor tier at 15 EUR per month for early access to experimental features. Available on macOS, Windows, Linux, iOS, and Android.
Why Consider Logseq: Logseq delivers the power of networked note-taking with zero cost, full data ownership through local Markdown files, and a privacy-first approach that no proprietary alternative can match.
Building privacy-first personal knowledge bases, academic note-taking with built-in spaced repetition, daily journaling with automatic idea linking, visual project planning using whiteboards, developer documentation and code snippet management
Free
Free tier: All features included free; sync is optional paid add-on