Description: OpenStreetMap is a free, open-source, crowd-sourced map of the world. Volunteers collect map data using GPS devices, aerial imagery, local knowledge, and other free sources to create and update the map database.
Type: software
Pricing: Open Source
Description: Teletype is a real-time collaborative text editor and programming environment. It allows developers to code together with team members in the same document at the same time.
Type: software