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: Optimism is a scaling solution for Ethereum that uses optimistic rollups to batch transactions off-chain, reducing costs and improving scalability. It enables fast, cheap transactions while leveraging the security of the Ethereum blockchain.
Type: software