Logseq is a joyful, open-source outliner that works on top of local plain-text Markdown and Org-mode files. Use it to write, organize and share your thoughts, keep your to-do list, and build your own digital garden. Logseq includes the following features: 1. Backlink 2. Knowledge Graph 3. Page and block references 4. Page and block embeds 5. Tasks & Todos 6. SRS Cards 7. Zotero integration 8. Youtube, Twitter, etc. integration 9. Audio recorder 10. Powerful queries 11. Whiteboards