Syncular – offline-first SQL sync with TypeScript and Rust cores

In plain words

Syncular is a development tool that combines TypeScript and Rust cores to enable offline-first SQL synchronization. It allows developers to build applications that work seamlessly without continuous internet connectivity, syncing data when connections are available. The tool is designed for software engineers building data-driven applications that need reliable offline capabilities alongside TypeScript and Rust ecosystems. Its dual-language architecture lets developers leverage both languages' strengths for database synchronization tasks.

written from the facts on this page · September 2026

From the sources

Syncular keeps an SQLite database on each client and synchronizes it through a server-owned commit log. Apps read from local SQLite and continue to work offline. A write updates local state immediately, enters an outbox, and is checked by the server when it syncs. The browser client runs SQLite on OPFS. Native integrations share the Rust core and native SQLite across Rust, Swift, Kotlin, Flutter, React Native, and Tauri. Servers run on Bun, Node, or Cloudflare Workers with SQLite, Postgres, or D1. Backend services and workers can run a server-side SyncClient with persistent SQLite (often called a headless client). A database-less SyncRemoteClient submits commits and calls registered server…from github.com

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