Compare two locations side by side with synchronized zoom levels. Annotate the maps to highlight interesting comparisons. Share a link to save or send your view.
- Synchronized zoom across two maps
- Search for specific places on either map
- Use current location to reposition a map
- Draw boundary shape annotations on maps
- Copy URL to share your exact view and annotations
- Randomize to load a different example comparison
The app is static, but a recent version of Node.js (with npx) is used for local development.
make run— starts live-reload server: http://localhost:8080make dev— runs the formatter + tests on file changesmake all— runs all of the pre-commit actions