WebSQL chrome admin tool
Using PersistenceJS there is a persistence.reset API which will wipe the database clean.PersistenceJS Site
For developing / testing purposes, you can view content and delete webSQL, IndexedDB, cookies, etc by searching for your domain name at this URL in Chrome:
chrome://settings/cookiesThere, you can delete all the storage for a domain or just certain local storage entities. Yes, the URL implies just 'cookies', but the interface at this URL includes all types of offline storage.
It would be great I think if the Chrome developer tools interface had the ability to right-click and delete a data storage entity in the Resources tab along with inspecting the content. But for now, all I know of is the settings/cookies URL.
You can use keyboard shortcut Ctrl + Shift + i to open developer tools on Chrome.
Then go to resources tab (pink oval in screenshot below)
When there click on WebSQL and you will see list of databases that you can expand (red oval in screenshot below).
