There's IndexedDB. Both Mozilla and Microsoft opposed on standardizing on a specific implementation of an SQL database (sqlite v2), and rightly so. There's load

There's IndexedDB. Both Mozilla and Microsoft opposed on standardizing on a specific implementation of an SQL database (sqlite v2), and rightly so. There's loads of commentary/rationale on this issue on the web, so I won't re-iterate it here. iOS has IndexedDB since v8.0 though the implementation is poor. I don't know if they've fixed it in any 8.x release. However, you're (mostly) not using IndexedDB directly anyway but a storage library, which supports IndexedDB, WebSQL and maybe localstorage as a fallback (e.g. localForage[1] for a simple key-value DB). [1] https://mozilla.github.io/localForage/ https://mozilla.github.io/localForage/