Published October 16, 2025 | Version v0.6.6
Software Open

napari: a multi-dimensional image viewer for Python

Creators

  • 1. Chan Zuckerberg Initiative
  • 2. Harvard Medical School
  • 3. napari; University of Warsaw, Faculty of Mathematics, Informatics, and Mechanics
  • 4. Monash eResearch Centre, Monash University
  • 5. The Jackson Laboratory
  • 6. napari
  • 7. MRC-LMB
  • 8. Monash University
  • 9. Iber Lab - ETH ZĂŒrich
  • 10. Quansight
  • 11. Quansight Labs
  • 12. European Molecular Biology Laboratory, Genome Biology Unit, Heidelberg, Germany
  • 13. University of Minnesota — Twin Cities
  • 14. Willing Consulting
  • 15. Chan Zuckerberg Biohub
  • 16. Leibniz-IPHT, Jena, Germany
  • 17. Harvard Medical School, BIDMC
  • 18. SETI Institute/NASA ARC
  • 19. University of California, Santa Cruz
  • 20. Laboratory for Optics and Biosciences, Ecole Polytechnique, INSERM, CNRS, Palaiseau, France
  • 21. Unaffiliated
  • 22. Friedrich Miescher Institute for Biomedical Research (FMI), Basel (Switzerland)
  • 23. EMBL Heidelberg, Germany
  • 24. University of California, Irvine
  • 25. Dartmouth College
  • 26. Tel Aviv University, Israel
  • 27. Ramona Optics Inc, Durham, North Carolina, USA
  • 28. University College London
  • 29. Naval Nuclear Laboratory
  • 30. Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
  • 31. UniversitĂ€tsmedizin Greifswald
  • 32. Kobe University
  • 33. Chan Zuckerberg Initiative Foundation
  • 34. UCL & The Alan Turing Institute
  • 35. EMBL Heidelberg
  • 36. MetaCell
  • 37. Delft University of Technology
  • 38. Apex Systems
  • 39. Sainsbury Wellcome Centre - University College London
  • 40. University of California, Los Angeles
  • 41. Georg-August-UniversitĂ€t Göttingen
  • 42. University Hospital WĂŒrzburg - Institute of Neuroradiology
  • 43. Kavli Institute for Systems Neuroscience at NTNU, Trondheim, Norway
  • 44. Algarve Centre of Marine Sciences (CCMAR)
  • 45. Yikes LLC
  • 46. Brown University
  • 47. NanoString Technologies, Inc.
  • 48. European Bioinformatics Institute - European Molecular Biology Laboratory
  • 49. University of Wisconsin-Madison
  • 50. AI lab for Living Technologies, University Medical Centre Utrecht (The Netherlands)
  • 51. DFG cluster of excellence 'Physics of Life', TU Dresden
  • 52. Aix Marseille University, CNRS, Fresnel, I2M, IBDM, Turing Centre for Living systems
  • 53. TU-Dresden / EPFL
  • 54. ETH Zurich / University of Zurich
  • 55. Tobeva Software
  • 56. Chinese Academy of Sciences - SIAT, Shenzhen, China

Description

napari 0.6.6

Wed, Oct 15, 2025

We're happy to announce the release of napari 0.6.6! napari is a fast, interactive, multi-dimensional image viewer for Python. It's designed for browsing, annotating, and analyzing large multi-dimensional images. It's built on top of Qt (for the GUI), vispy (for performant GPU-based rendering), and the scientific Python stack (numpy, scipy).

For more information, examples, and documentation, please visit our website, https://napari.org.

napari follows EffVer (Intended Effort Versioning); this is a Meso release containing awesome new features, but some effort may be needed when updating previous projects to use this version.

Highlights

This a small bugfix release, following up the changes in 0.6.5.

Zooming in the dark?

In the previous release we accidentally made the zoom tool added in v0.6.3 invisible. Whoops! No worries, it's back 🔍.

"Open with napari"

When using the napari bundle, it will now detect when a file can be opened with napari based on the extension. This allows you to use the open with > menu from your operative system to open files with napari!

PS: Since we did quite a few changes behind the scenes on this new version of the bundle, you might experience some issues. Don't hesitate to open an issue or contact us on zulip if you do!

Improvements

  • Update menuinst configuration with file type associations (#8359)

Bug Fixes

  • Fix shape selection in a single plane when shapes are on multiple planes (#8335)
  • Fix invisible zoom box (#8344)
  • Bump console version to fix ipykernel bug (#8360)

Build Tools

  • Bump console version to fix ipykernel bug (#8360)

Documentation

  • Update release notes v0.6.6 (docs#868)
  • Add info about manual trigger of conda update to release guide (docs#859)
  • Fix version switcher for 0.6.5 (docs#861)
  • Remove trailing comma in version switcher json (docs#862)
  • Add release notes for v0.6.6 (docs#866)
  • Update release notes v0.6.6, the revenge (docs#869)

Other Pull Requests

  • Add a new attr_to_settr utility function and simplify layer control widgets layer to widget setup (#8274)
  • [pre-commit.ci] pre-commit autoupdate (#8275)
  • ci(dependabot): bump the actions group with 9 updates (#8324)
  • Delay settings import to avoid circular import (#8327)
  • Add info about conda forge manual trigger to release checklist (#8328)
  • Add sponsor badge and reorganize badges into groups (#8343)
  • Fix vispy error traceback (#8346)
  • Migrate license settings to modern standards (#8350)

7 authors added to this release (alphabetical)

(+) denotes first-time contributors đŸ„ł

8 reviewers added to this release (alphabetical)

(+) denotes first-time contributors đŸ„ł

Notes

If you use this software, please cite it using these metadata.

Files

napari/napari-v0.6.6.zip

Files (3.9 MB)

Name Size Download all
md5:06783e7e34233c7e7e68afd89f907213
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Additional details

Related works

Is supplement to
Software: https://github.com/napari/napari/tree/v0.6.6 (URL)

Software

Repository URL
https://github.com/napari/napari