Some popular keys
Reports show the tag data from different angles. They often bring together data from several sources in interesting ways. Some of the reports can help with finding specific errors.
- Characters in keys
- Database statistics
- Frequently used keys without wiki page
- Historic development
- Key lengths
- Language comparison table for keys in the wiki
- Similar keys
- Wiki images
- Wiki pages about non-existing keys
OpenStreetMap uses tags of the form key=value to add meaning to geographic objects. Taginfo collects information about these tags from several sources to help you understand what they mean and how they are used.
This is the main taginfo site. It contains OSM data for the whole planet and is updated daily.