Logseq
Note Taking · Free · since 2020 · open source
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Logseq is an open-source knowledge management tool that uses an outliner approach. Like Obsidian, your data is stored locally in markdown or org-mode files. It features bidirectional linking, queries, and a plugin system.
pros
- Open source and local-first
- Outliner-style input is fast for daily notes
- Built-in queries and graph view
- Active community and plugin ecosystem
cons
- Performance issues with large graphs
- Less mature than Obsidian
- UI can feel rough around the edges
- Sync solution still evolving
top Logseq alternatives
Obsidian Local-first markdown note-taking app with bidirectional linking and a plugin ecosystem. Free 
Roam Research Networked note-taking tool with bidirectional links and graph-based knowledge management. $15/mo 
Notion All-in-one workspace for notes, docs, wikis, project management, and databases. Free Logseq compared
Notion vs Logseq · Obsidian vs Logseq · Logseq vs Roam Research · Logseq vs Coda · Logseq vs Craft · Logseq vs Mem · Logseq vs Apple Notes · Logseq vs Bear
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Coda All-in-one doc platform combining documents, spreadsheets, and app-like functionality. Free 
Craft Native document editor for Mac and iOS with beautiful formatting and real-time collaboration. Free 
Mem AI-powered note-taking that automatically organizes and surfaces relevant information. Free