napari

@napari.org

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n-dimensional image viewer for Python

Video showing zoom and position staying in sync between 2D and 3D views of the same data.
Video showing an annotation around a coin, with the coin filling with the annotated label at the end.
Video showing a napari viewer with a 2D canvas showing a slice of a large 3D image. The layer controls include a histogram of image intensities that updates as you pan around the canvas, and also, when selecting the full image, as pixels are drawn from remote data.
rotating Christmas tree rendered with napari vectors and points layers Animation by Ashley Anderson
the napari logo (a two-lobed island) modified to look like a snowman, with Christmas (red/green) colors
Special edition of the napari logo for Halloween. The island is white and looks like a ghost, and there are spiderwebs.
napari core team members coding with community members at the GloBIAS 2025 hackathon at RIKEN BDR in Kobe, Japan.
Image depicting the napari viewer in grid mode with scale bars and color bars enabled
screenshot of the napari github repo page. The issues tab shows 999 open issues.
Video of the napari viewer panning and zooming around an image of the Antlia cluster from NOIRLab
Matplotlib figure showing how different tools result in different triangulations for the same shape
Screenshot of the napari viewer showing a dataset of air temperature over North America overlaid on worldwide sea surface temperatures. The axes are drawn at coordinate (0, 0) with latitude pointing up and longitude pointing right.
Video of the napari command palette being used to load the cells-3d dataset, then turn on 3d view.
picture of the napari viewer with a shapes layer with a single shape: the outline of South Africa, including a hole where its enclave Lesotho is found.
video showing new napari right-click indicators and the napari dimensionality toggle button.
screenshot of the napari viewer showing an atmospheric temperature time series overlaid on a sea surface temperature time series. The axes indicators are visible and show latitude pointing up and longitude pointing right.
image of a PAL text pattern from wikipedia being shown in the napari viewer. Source: https://en.wikipedia.org/wiki/Test_card