Technical breakdown explains how Linear makes issue updates feel instant using a browser database, local-first sync, and speed-focused design

The article argues that Linear’s speed comes from a local-first architecture: the UI reads and writes to IndexedDB in the browser, then syncs changes to the server asynchronously. It contrasts this with traditional CRUD apps that wait on network requests, causing spinners, skeleton screens, or frozen interfaces.

Linear reflects a broader shift toward client-side data layers and sync engines that make web apps feel closer to native software. As expectations for responsiveness rise, more productivity tools may adopt browser-resident databases and optimistic syncing to reduce perceived latency.

How's Linear so fast? A technical breakdown