Splice - Music creation, collaboration, and sharing made simple.
Apache Lucene - High-performance, full-featured text search engine library written entirely in Java.
AppWise - AppWise is an intelligent workspace that unifies enterprise apps into a single, searchable view.
List.js - Tiny, invisible and simple, yet powerful and incredibly fast vanilla JavaScript that adds search...
Render UIKit - React-inspired Swift library for writing UIKit UIs
Prerender - Allow your AngularJS, BackboneJS, or EmberJS apps to be crawled perfectly by search engines. View on Github.