OSM Tag History
OSM Tag History | |
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Authors: | ![]() |
License: | MIT License |
Language: | English |
Website: | taghistory.raifer.tech |
Source code: | ![]() |
Programming languages: | HTML and C++ |
History of OSM tag usage |
OSM Tag History is a tool letting you plot graphs showing tag usage stats over time, was first created July 2016 and is available at taghistory.raifer.tech
OSM Tag History lets you compare multiple tags, and use it to observe a shift in usage over time from one tag to another.
See Category:OSMTagHistory for images used here on the wiki

Martin Raifer's diary entry gives more details
Math1985' diary entry gives more example tag comparisons (and their histories)
API
It has an API! See OSM Tag History API docs
Development
Developed by Martin Raifer.
Source code and bug tracking on github: https://github.com/tyrasd/taghistory
Permalink feature
For the example above (Swimming_pool_amenity_vs_leisure_Taghistory.png) the corresponding permalink looks like:
https://taghistory.raifer.tech/#***/leisure/swimming_pool&***/amenity/swimming_pool
See also
- Taginfo tab "chronology", e.g. for leisure=swimming_pool
- Ohsome_Dashboard