"The idea is to embed a relational database directly in the browser, with a slice of the data, and let a synchronization (sync) engine keep everything consistent. The browser interacts with a local datastore that is synced to the server in the background. This means instant interactivity on the front end while maintaining symmetry with the back end."
"The modern browser is a beast, the result of years of intensive development and real-world testing. Today's browser typically runs on a very capable machine. Yet, like a pauper, it must ask the server every time it wants some data. Browser state is just a temporary shadow, eradicated every time the screen refreshes."
"Several factors have emerged to make the browser a more robust datastore, including IndexedDB and WebAssembly, paving the way for tools like the in-browser NoSQL datastore, PouchDB. But probably the star of the show these days is the PGLite SQL database."
Computing power has historically oscillated between centralization and distribution. After decades of server-dependent web applications, a local-first movement is emerging that shifts data storage capabilities back to the browser. Modern browsers, powered by IndexedDB and WebAssembly, can now host relational databases like PGlite and NoSQL datastores like RxDB. This approach eliminates traditional UI delays by allowing browsers to interact with local data while background synchronization engines maintain consistency with servers. Rather than temporary caches, browsers now maintain resilient state-of-record, providing instant responsiveness and improved user experience while preserving data symmetry across systems.
Read at InfoWorld
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