About Underleau
Underleau is a modern collaborative editor designed for writers who value privacy, speed, and seamless collaboration.
Built with cutting-edge web technologies, Underleau offers an offline-first experience that keeps your work local while enabling real-time collaboration when you choose to share.
Our Technology
Local-First Architecture
Your documents are stored locally on your device first, ensuring privacy and offline access. Sync happens only when you decide to collaborate.
Real-time Collaboration
Using CRDTs and Yjs, multiple users can edit the same document simultaneously with live cursors.
Modern Web Stack
Built with React 19, Vite, and deployed on Cloudflare for optimal performance and reliability.
Privacy by Design
We don't track your writing habits or store your documents on our servers unless you explicitly choose to sync.
Meet the Team
Underleau is built by a passionate team of developers and writers who believe in creating tools that empower creativity. We're committed to open-source principles and building technology that respects user privacy.