localStorage is a web API, the storage limit is ~5MB. However it can only store strings so it's pretty taxing. Chrome and Safari actually embed SQLite directl

localStorage is a web API, the storage limit is ~5MB. However it can only store strings so it's pretty taxing. Chrome and Safari actually embed SQLite directly as WebSQL, however it's not becoming standardized because Mozilla doesnt consider "add SQLite" as a sensible web standard.