napari-spatialdata: interactive exploration and annotation of spatial omics data

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napari-spatialdata: interactive exploration and annotation of spatial omics data#

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This repository contains a napari plugin for interactively exploring and annotating SpatialData objects. napari-spatialdata is part of the SpatialData ecosystem. To learn more about SpatialData, please see the documentation.


You can install napari-spatialdata via pip:

pip install napari-spatialdata[extra]

The extra command will install the qt bindings PyQt5.

Note: if you have an M1/M2 Mac then you may get an error when installing PyQt5 via pip. A solution is to first install napari via conda (which will correctly install PyQt5), using

mamba install -c conda-forge napari pyqt

and then install napari-spatialdata via pip, but without the extra option:

pip install napari-spatialdata

You can find more details on this in the installation instructions.

Using napari-spatialdata as default zarr reader#

If you would like to use the plugin as the default zarr reader, in napari please go to File -> Preferences -> Plugins and follow the instructions under File extension readers.

Development Version#

You can install napari-spatialdata from Github with:

pip install git+

Or, you can also install in editable mode after cloning the repo by:

git clone
cd napari-spatialdata
pip install -e .

Note: when performing an editable install of napari-spatialdata, spatialdata will be reinstalled from pip. So, if you previously also made an editable install of spatialdata, you need to re-run pip install -e . on the spatialdata repository. Please find more details on this in the installation instructions.

Getting started#

To learn how to use the napari-spatialdata plugin, please see the documentation. To learn how to integrate napari-spatialdata into your analysis workflows, please see the SpatialData tutorials. In particular:


Contributions are very welcome. Tests can be run with tox, please ensure the coverage at least stays the same before you submit a pull request.


Distributed under the terms of the BSD-3 license, “napari-spatialdata” is free and open source software


If you encounter any problems, please file an issue along with a detailed description.


Marconato, L., Palla, G., Yamauchi, K.A. et al. SpatialData: an open and universal data framework for spatial omics. Nat Methods (2024).