Apache Lucene - High-performance, full-featured text search engine library written entirely in Java.
Mapbox - An open source mapping platform for custom designed maps. Our APIs and SDKs are the building blocks to integrate location into any mobile or web app.
Wikiwand - A beautiful new interface to Wikipedia
QGIS - QGIS is a desktop geographic information system, or GIS.
PIPL Professional People Search Engine - PIPL professional search is used to find the person behind an email,phone or social profile and covers over 3 Billion people worldwide.
OpenStreetMap - OpenStreetMap is a map of the world, created by people like you and free to use under an open license.