Overview:
Instant is a backend-as-a-service designed for AI-coded apps, providing a database that operates directly on the client. It eliminates the need for separate server-side stores, selectors, endpoints, and local caches by allowing developers to write relational queries in the shape of the data they want. Instant handles data fetching, permission checking, offline caching, and optimistic updates with rollbacks. It is intended for developers building modern apps, particularly those who want to avoid the "schlep" of setting up databases, ORMs, and stateful servers, while also supporting multiplayer and ephemeral features like cursors.
Core Features:
Client-side database: A database you can use directly from the client, eliminating the need for client stores, selectors, and endpoints.
Multiplayer queries: Every query is multiplayer by default, meaning updates are automatically shared across clients without needing stateful servers.
Offline caching and optimistic updates: The SDK persists a cache of recent queries to IndexedDB (web) or AsyncStorage (React Native) and handles optimistic updates with automatic rollback on failure.
Permissions system: Powered by Google's CEL library, allowing developers to control data access.
Ephemeral updates: Supports real-time, transient data like cursors or online status.
Multiple SDKs: Available for Javascript, React, and React Native.
Use Cases:
Building chat applications: With support for relational queries, multiplayer updates, and offline caching, developers can create real-time chat apps with minimal backend code.
Adding multiplayer presence to apps: Developers can use ephemeral updates to show who's online or share cursor positions across users.
Rapid prototyping of AI-coded apps: By removing the need to write server-side endpoints and client stores, Instant allows AI tools to generate functional apps faster.
Developing mobile apps with offline support: React Native developers can rely on AsyncStorage caching and automatic rollback for a seamless offline-first experience.
Why It Matters:
Instant proposes a shift in how modern apps are built by treating common front-end challenges as database problems. It reduces the repetitive work of setting up servers, endpoints, and stores for each new feature. Being open-source, it provides a transparent, self-hostable alternative for teams that want to control their backend without writing it from scratch. Its design, inspired by Asana's WorldStore and Figma's LiveGraph, offers a proven architecture for building multiplayer, offline-capable apps directly from the client.
