Free & Open-Source Diigo Premium Alternatives

Web research and annotation tool.

1. Wallabag ↗
   ●●○Medium · Imports via export file
2. Shiori ↗
   ●●○Medium · Imports via export file
3. Obsidian ↗ PRIVATE
   Markdown-based knowledge graph (free for personal use).
   ●○○Easy · Imports Markdown / plain text