Offline LAN Doc Hub

Write offline, collaborate live with anyone on your LAN

Problem

On planes, construction sites, factories, or in secure environments, cloud collaboration tools are unavailable, while traditional local editors don't support multi-user editing. Users want a document editor that works immediately and supports offline peer collaboration.

Solution

A local-first document editor with automatic LAN discovery and P2P collaboration, local saves when offline, and automatic merging when back on network. Open formats, Markdown plus basic rich text, suited for small teams writing together without cloud.

Users

Engineers who work offline frequently, field teams, researchers, and small organizations sensitive about data leaving their network.

MVP

Desktop editor with local Markdown; auto-discovery and real-time sync on the same Wi-Fi; CRDT-based conflict merge; one-click PDF/HTML export; no account system.

Revenue

Free personal edition; annual team subscription with admin panel and encryption policies.

Why now

CRDT and local-first tech are mature, AI-assisted coding lowers the build cost, and more scenarios need cloud-independent collaboration while big vendors stay cloud-centric.