Map drawing tool where the map lives in the URL

Draw on a Map is a SaaS tool that lets users create and share custom maps entirely through the URL, with every drawn element encoded in the link itself. It’s designed for teams and individuals who need quick, collaborative spatial planning without accounts or data storage. The project is interesting because it reimagines map sharing as a stateless, zero-infrastructure experience, built by two former CERN engineers who left to pursue their own product vision.