SQLite

Embedded single-file databasePublic domain

A full SQL database that lives in one file inside your application, with no server to run. Reads and writes are local disk operations, which makes it extremely fast for single-process workloads.

Official site

Reach for it when

Desktop apps (Tauri, Electron)
Mobile apps
Local caches, prototypes, and tests

Worth knowing

One writer at a time — not a fit for many concurrent writers across servers.

In stack playbooks

Tauri + React + SQLite

Local, single-file storage

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