Zero-Latency UI

The problem with traditional UIs

Most applications today force users to wait. Every click, every interaction, every save—there’s a spinner, a loading state, a moment where your product feels sluggish. For developer tools and professional products, this isn’t just frustrating—it’s productivity-killing. Your users are experts who expect their tools to keep up with their thinking, not slow them down.

Traditional cloud-first architecture puts the “source of truth” on a centralized server-side infrastructure, making every user interaction dependent on network latency. Even with fast connection, users spend their time looking at loading spinners instead of having the UI follow their train of thought.

What zero-latency UI means

Zero-latency UI leverages local-first principles to make your product feel instantaneous. Instead of waiting for server responses, user interactions happen immediately against local data, with background synchronization keeping everything in sync. This isn’t just about offline capability—it’s about creating interfaces that respond at the speed of thought.

Local-first software stores data primarily on the user’s device, ensuring applications operate fully without internet dependency while maintaining seamless multi-device synchronization. The result? Sub-millisecond response times and interfaces that never leave users waiting.

Our approach

We leverage proven tools from our ecosystem and the broader local-first community, depending on client case:

• RxDB for offline-first reactive databases with real-time synchronization capabilities
• ElectricSQL for local-first sync directly on Postgres with conflict-free programming models
• Logux - Our own flexible JavaScript framework for building local-first sync engines for non-standard cases

And much more!

When you need zero-latency UI

• Your product serves expert users (developers, designers, analysts) who spend hours per day in the UI
• Team productivity tools where lag kills flow state
• Collaborative applications where real-time feels truly real-time
• Mobile or desktop apps that need to work reliably in varying network conditions

Ready to build interfaces that respond at the speed of thought? Let’s create your first zero-latency success story.