Nominatim
Server application for geocoding (address -> coordinates) and reverse geocoding (coordinates -> address) on OpenStreetMap data.
- Maps & GPS
- Python
- GPL-3.0
- Actively maintained
GitHub stats
- GitHub stars
- 4,509
- Forks
- 862
- Open issues
- 102
- Commits, last 12 months
- 522
- Last commit
- Sep 30, 2026
- Latest release
- v5.3.2Apr 19, 2026
- Created
- Mar 3, 2012
Data from the GitHub API, refreshed daily.
About Nominatim
Server application for geocoding (address -> coordinates) and reverse geocoding (coordinates -> address) on OpenStreetMap data. Nominatim is open source under the GPL-3.0 license and written mainly in Python, so you can read the code, run it on your own hardware and keep full control of your data.
The project has 4,509 stars and 862 forks on GitHub, with 522 commits over the last year. It installs natively rather than through an official Docker image, so plan for a short manual setup.
Topics
- openstreetmap
- geocoding
- osm
Repository preview
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What is Nominatim?
Nominatim is a free, open-source app you can host on your own server, listed in our Maps & GPS category. Server application for geocoding (address -> coordinates) and reverse geocoding (coordinates -> address) on OpenStreetMap data. The source code lives at github.com/osm-search/Nominatim, where it has 4,509 stars.
Is Nominatim free and open source?
Yes. Nominatim is open-source software released under the GPL-3.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run Nominatim with Docker?
Nominatim does not list an official Docker image. It installs natively (C), so follow the install steps in its README or look for a community-maintained container.
What are the best alternatives to Nominatim?
Popular open-source alternatives to Nominatim include Dawarich, Open Source Routing Machine (OSRM) and GraphHopper.
Is Nominatim actively maintained?
The most recent commit to Nominatim was on Sep 30, 2026 with 522 commits in the past twelve months. The latest release is v5.3.2, published Apr 19, 2026. Check the open issues on GitHub to gauge how quickly maintainers respond.