adiffs.osmcha.orgThis is a web service providing augmented diffs for OpenStreetMap changesets. An augmented diff is an XML file that describes the edits performed in a particular changeset. Unlike the osmChange format used by the openstreetmap.org API, augmented diffs contain both the old and new versions of modified elements, and are augmented (hence the name) with additional context about related elements, like parent ways of modified nodes or members of modified relations.
Augmented diffs are found at
https://adiffs.osmcha.org/changesets/<CHANGESET_ID>.adiff. For example:
https://adiffs.osmcha.org/changesets/160415129.adiff.
Each file contains the complete set of changes for a specific changeset, and is useful for visualizing or analyzing a given
changeset.
This service was developed to support OSMCha, a changeset viewer and validation tool for OpenStreetMap. OSMCha is a project of OpenStreetMap US, a 501(c)(3) nonprofit organization that aims to grow and support the OpenStreetMap community in the United States and beyond. OpenStreetMap US provides financial support for OSMCha development and infrastructure.
The adiffs.osmcha.org service is free to use for low-volume noncommercial purposes.
If you would like to build an application which depends on the service or make high-volume use of
it, please contact team at openstreetmap dot us about the Community Projects program or
Organizational Membership.
Data from the OpenStreetMap project is licensed under ODbL.
This includes data from openstreetmap.org and
planet.openstreetmap.org. It also includes data
provided by the adiffs.osmcha.org service.