Mapzen, a now sadly defunct mapping startup, released all of its software open-source, including WebGL mobile and browser SDKs, map tile rendering, search and r

Mapzen, a now sadly defunct mapping startup, released all of its software open-source, including WebGL mobile and browser SDKs, map tile rendering, search and routing. Take a look at: https://github.com/tangrams/ https://github.com/tangrams/ https://github.com/tilezen/ https://github.com/tilezen/ https://github.com/valhalla/ https://github.com/valhalla/ https://github.com/pelias/ https://github.com/pelias/ (Full disclosure: used to work at Mapzen)