Workbox : JavaScript Libraries for adding offline support to web apps.
Wave.js : Audio visualizer library for javascript. Create dynamic animations that react to an audio file or audio stream.
Moment.js : A javascript date library for parsing, validating, manipulating, and formatting dates.
Impel : Impel takes the pain out of working with HTML5 asynchronous databases.
Statement callbacks? Transaction callbacks? One-to-many and many-to-many relati...
Photon : UI toolkit for building desktop apps with Electron.
Automatic and enhanced Google Analytics tracking for common user interactions on the web.