Placemark Offers New Free Version
So far, Placemark, a bootstrapped one-person project, was only available for paying customers. Now Tom released a free tier, Placemark Play, which provides the same user interface and similar features as the paid tier. The main difference to the paid tier is that Placemark won’t save your data; once your browser session ends, your data is gone.
Without data storage, Placemark Play can be compared to Geojson.io, which handles data persistence similarly, although Geojson.io offers to restore data from the last session. Placemark, however, provides a slicker user interface and more advanced geometry operations (buffers, simplification, convex hulls), imports and exports from and to various geospatial data formats, and design and export map styles for MapboxGL and Leaflet.
Placemark Play is a great option for quick data visualisation and advanced editing, when you need a little more capabilities than Geojson.io.