#client-store

TanStack DB (TanStack/db, MIT, npm @tanstack/db 1.0.0-rc.1.3) is a client store that keeps typed collections, live queries, and optimistic mutations in the app process. Checked 4 November 2026 on main 8feab6ea. The README still marks the project beta. docs/overview.md says live queries update through the d2ts differential-dataflow library, and the 0.7 ms figure there was not remeasured.