Are you thinking of WebSQL? I don't remember a SQLite interface client-side in any browser. Well, yes and no. The whole problem with WebSQL was that it effecti

Are you thinking of WebSQL? I don't remember a SQLite interface client-side in any browser. Well, yes and no. The whole problem with WebSQL was that it effectively meant using SQLite and never anything else that wasn't completely bug compatible. So the whole problem with WebSQL was that it was, de facto, a web standard built around giving an SQLite interface client-side.