Mapnik vs OpenMapTiles
A side-by-side comparison of two self-hosted maps & gis options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Mapnik | OpenMapTiles |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 89 · Excellent | 79 · Good |
| Category | Maps & GIS | Maps & GIS |
| License | LGPL-2.1 | BSD-3-Clause |
| Language | C++ | PLpgSQL |
| Setup difficulty | Hard | Hard |
| Min. RAM | 2,048 MB | 8,192 MB |
| Deployment | docker, bare-metal | docker |
| GitHub stars | ★ 3,961 | ★ 3,170 |
| First released | 2006 | 2016 |
| Replaces | Google Maps, Mapbox | Mapbox |
What are Mapnik and OpenMapTiles?
Mapnik
Mapnik is an open-source toolkit for rendering raster map tiles from OpenStreetMap and other geospatial data using a flexible styling engine. It powers custom slippy maps without relying on commercial tile providers.
- Raster tile rendering
- Flexible styling
- OpenStreetMap data support
- No vendor lock-in
OpenMapTiles
OpenMapTiles is an open-source toolset for self-hosting the entire pipeline of generating vector map tiles from OpenStreetMap data. It produces ready-to-use tiles and styles for serving custom maps.
- Full vector tile pipeline
- OSM data import
- Multiple map styles
- Self-hosted tile generation
Mapnik vs OpenMapTiles: key differences
Mapnik is written in C++, while OpenMapTiles is built with PLpgSQL. Licensing differs — LGPL-2.1 for Mapnik versus BSD-3-Clause for OpenMapTiles. Mapnik is the lighter option, starting around 2,048 MB of RAM against 8,192 MB for OpenMapTiles. Mapnik is the more established project (first released 2006), while OpenMapTiles arrived in 2016.
Why pick each one
Choose Mapnik if…
- Released under the LGPL-2.1 license
- First-class Docker support for quick deployment
- Active community (4k GitHub stars)
- Written in C++
Choose OpenMapTiles if…
- Released under the BSD-3-Clause license
- First-class Docker support for quick deployment
- Active community (3.2k GitHub stars)
- Written in PLpgSQL
Frequently asked questions
Is Mapnik or OpenMapTiles better?
Neither is universally better. Mapnik has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.
Are Mapnik and OpenMapTiles free and open-source?
Yes. Mapnik is licensed under LGPL-2.1 and OpenMapTiles under BSD-3-Clause. Both can be self-hosted at no software cost.
Can I run Mapnik and OpenMapTiles with Docker?
Mapnik: yes. OpenMapTiles: yes.
Which is lighter on resources, Mapnik or OpenMapTiles?
Mapnik has the smaller minimum footprint at 2,048 MB of RAM, compared to about 8,192 MB for OpenMapTiles. Real-world usage depends on library size, user count, and enabled features.