Case Study
NoteSeq
Real-time collaborative note-taking app inspired by Notion and Logseq. Features block-based WYSIWYG editing powered by TipTap, live multiplayer cursors via Yjs CRDT, bidirectional backlinks, an interactive knowledge graph, daily journals, and a full import/export system.
01
The Problem
Existing note-taking tools force a tradeoff: Notion has great collaboration but weak linking, Logseq has powerful bidirectional links but no real-time multiplayer. I wanted both — a tool where teams can collaborate live while building a connected knowledge base.
02
The Approach
I combined TipTap's block-based WYSIWYG editor with Yjs CRDTs for conflict-free real-time collaboration, layered on top of Convex for reactive data sync. Bidirectional backlinks and an interactive knowledge graph let users see how their notes connect.
03
Technical Highlights
- Yjs CRDT integration for conflict-free real-time collaboration with live multiplayer cursors
- TipTap block-based editor with custom extensions for backlinks and embeds
- Interactive knowledge graph visualization showing connections between notes
- Convex reactive backend — zero-latency UI updates without manual cache management
- Full import/export system supporting Markdown and JSON formats
04
Results
Fully functional collaborative editor with real-time sync
Knowledge graph with bidirectional link traversal
Daily journal system with automatic date linking
Open source on GitHub