an open-source mapping lab

Mapzen builds open-source mapping tools and collaborates on open geodata initiatives.

Finding satellites above you using open source tools and open data.
Style OpenStreetMap data with high contrast black & white, colorful classic, and light grey skins using the Tangram graphics library and Mapzen's versatile Vector Tiles.
The Transitland schedule API is here! It provides a simple method to access and analyze transit schedule data from many different agencies. Hop on the bus and explore the possibilities with us.