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: Sandstorm is an open source platform for self-hosting web apps. It allows you to run web apps on your own server while isolating them into secure sandboxes. Sandstorm handles authentication, access control, versioning, and backups for the apps.
Type: software
Pricing: Open Source