Nominatim

Server application for geocoding (address -> coordinates) and reverse geocoding (coordinates -> address) on OpenStreetMap data.

GitHub stars
4,514
License
GPL-2.0
Latest release
v5.3.2
19 April 2026
Last commit
12 October 2026
Runs on
C

Commits per month, last 12 months

537 commits

Replaces

Paid products Nominatim can stand in for.

How to self-host Nominatim

Nominatim runs on C. The project's own install guide is the place to start; most people put it on a small server with Docker and a reverse proxy for HTTPS.

  1. Get a server: a home server, a VPS, or a managed app host.
  2. Install it the way the project's docs describe, usually with Docker Compose.
  3. Put it behind HTTPS and set up backups before you add real data.
  4. Update it regularly. Watch the project's releases.

New to self-hosting? Start with the beginner's guide.

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Questions

Is Nominatim free?

Yes. Nominatim is open source under the GPL-2.0 license, so you can use it without paying for a license. You pay only for the server it runs on.

Can I self-host Nominatim?

Yes. Nominatim runs on C. Follow the install guide in the project's documentation, or use a host that installs it for you.

What does Nominatim replace?

People use Nominatim instead of Mapbox.

Is Nominatim still maintained?

The last change to Nominatim's code was on 12 October 2026, with 537 commits in the last 12 months.

Topics

Maps and Global Positioning System (GPS)

App data from awesome-selfhosted (CC BY-SA 3.0), stars and activity from GitHub.