napari: a fast, interactive viewer for multi-dimensional images in Python#


Napari is a Python library for n-dimensional image visualisation, annotation, and analysis. With napari you can:

  • view and explore 2D, 3D, and higher-dimensional arrays on a canvas;

  • overlay derived data such as points, polygons, segmentations, and more;

  • annotate and edit derived datasets, using standard data structures such as NumPy or Zarr arrays, allowing you to

  • seamlessly weave exploration, computation, and annotation together in imaging data analysis.

Examples gallery

See some of the things napari can do.


How to install napari.

Getting started

Get started with napari.


Forums, web chat, video chat, and more! Join us!


napari is developed by a global community. See how.


napari is extensible! Find plugins, or develop your own!