• zoom in to your area of interest
• specify time range of changes to load, check to include relations, press 'load'.
  Attic data goes back until September 2012.

• For continuous monitoring bookmark the Permalink and simply press load each time,
  the last load date will be preset as start date.

• A single changeset can be visualized by drag & drop of a changeset URL or using a bookmarklet, see Wiki page.

• hover over feature to show popup, click on feature to keep popup open, click on map to close
• zoom on changes with shift + drag zoom box

Displays OpenStreetMap changes based on the Overpass API Augmented Delta (adiff) query and the Augmented Diff format.
Tested on Firefox and Chrome; older Internet Explorer and mobile not supported.

This is an early alpha version and many features are missing, like better relation support, changeset
information, textual list and/or summary of changes and performance optimization. Also expect to find bugs.

Credits and licenses

• Vector data © OpenStreetMap contributors, licensed under ODbL

• OpenLayers: Copyright (c) 2005-2012 OpenLayers Contributors, 2-clause BSD License
• Underscore.js: Copyright (c) 2009-2012 Jeremy Ashkenas, DocumentCloud, MIT License
• Moment.js: Copyright (c) 2011-2012 Tim Wood, MIT License

• Overpass API: Roland Olbricht
• Viewer: Norbert Renner - GitHub