Cartopy
Python library for geospatial data processing and mapping.
- Status
- Generally available
- Last checked
- Checked · Oct 6, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
Cartopy is a Python package designed to facilitate geospatial data analysis and visualization, enabling users to create maps and perform spatial transformations with ease. It's particularly useful for researchers and developers working with geographic information systems (GIS).
Cartopy stands out as a robust, open-source library specifically tailored for Python developers working with geographic data, offering extensive support for various projections and transformations.
When it fits — and when it doesn’t
A good fit for
Researchers and developers working with GIS data who need to create accurate maps and perform spatial analysis.
Projects that require integration of geographic information into Python-based applications.
Look elsewhere if
Applications requiring real-time geospatial processing or very large datasets where performance is critical.
Users looking for a web-based interface for map creation without coding.
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Steep learning curve for non-Python developers
API requires Python-specific patterns, and extensive knowledge of matplotlib is often necessary for advanced usage.
- 02
Limited native support for certain geospatial data formats
Cartopy primarily supports shapefiles and GeoJSON; more specialized formats may require additional libraries or manual conversion.
- 03
Performance issues with large datasets
Rendering maps with extensive geospatial data can be slow, leading to longer processing times and potential memory overflow issues.
- 04
Documentation lacks comprehensive examples for advanced use cases
While basic usage is covered, more complex operations such as custom projections or integrating with other GIS tools are not well-documented.
What it does well
Support for various map projections and coordinate systems.
Integration with matplotlib for advanced plotting capabilities.
Geospatial data transformation and manipulation functions.
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up Cartopy
Setup steps, common gotchas and what to check after 30 days.