The indexeddb is a new HTML5 concept to store the data inside user's browser. indexeddb is more power than local storage and used for applications that require storing a large amount of the data. These applications can run more efficiently and load faster.
The W3C has announced that the Web SQL database is a deprecated local storage specification so web developer should not use this technology anymore. indexeddb is an alternative for web SQL database and more effective than older technologies.
The following are the characteristics: