Real-Time Collaboration
Made Simple
See Real-Time Collaboration in Action
Experience multi-user editing with automatic conflict resolution. Try it yourself or watch simulated users collaborate.
Collaborative Demo
Real-time sync powered by CRDT technology
Everything You Need to Build Collaborative Apps
Production-ready components, automatic conflict resolution, and granular permissions—all in one SDK.
Rich Text Documents
Notion-style collaborative editor with real-time sync, formatting, and comments.
Collaborative Spreadsheets
Google Sheets-style data grids with formulas, cell references, and multi-user editing.
Interactive Whiteboards
Figma-style infinite canvas with drawing tools, shapes, and sticky notes.
CRDT State Engine
Automatic conflict resolution with guaranteed convergence using Yjs framework.
Presence & Awareness
Real-time cursors, selections, avatars, and activity feeds for all users.
Permission Controls
Granular ACL system with role-based permissions at document or room level.
Add Collaboration in Minutes, Not Months
Our SDK handles all the complexity of real-time synchronization. Just wrap your components and CoSync does the rest.
- Drop-in Components
Pre-built UI widgets that just work
- TypeScript Support
Full type definitions for React, Vue, and vanilla JS
- Offline-First
Automatic sync with IndexedDB persistence
App.tsx
import { CollaborativeText } from '@cosync/studio';
export function Document() {
return (
<CollaborativeText
roomId={"doc-123"}
userId={"user-456"}
/>;
}
Built for Vertical SaaS
Industry-specific templates that accelerate integration from months to days.
Legal Tech
- Contract review
- Clause collaboration
- Version history
- Redline tracking
Medical Records
- Patient notes
- Care team sync
- HIPAA compliance
- Audit trails
Engineering Tools
- CAD annotations
- Spec documents
- Change requests
- Approvals
Education
- Lesson planning
- Student collaboration
- Real-time feedback
- Grading