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Notebooks in. Desktop apps out.

Build and test your workflow in a Jupyter notebook. LabConstrictor turns it into a desktop app that colleagues can install and run without setting up Python.

I want to find an appBrowse 5 apps built with LabConstrictor. Install them on Windows, macOS or Linux.Open the App CentreI want to make an appTurn your notebooks into installers for Windows, macOS and Linux.See how it works, step by step
The LabConstrictor logo: a green snake coiled around an orange notebook
A three-panel comic. Panel 1: a delighted scientist says "Finally, my ultimate notebook is ready!" Panel 2: a worried colleague beside a computer showing a warning says "Sorry, not even able to install it." Panel 3: the LabConstrictor snake coiled around an orange notebook glows, with the words "LabConstrictor will solve it!"

See it in action

See how installation works

Step through a simulated installer for Windows or macOS, from the downloaded file to opening the app. Nothing is downloaded or installed.Try the installation demo

Explore an installed app

Preview the Welcome notebook and a real NucleiSky example as colleagues see them in an installed app. No analysis runs here; the results were computed in advance.Open the installed app

Make your workflow available in other software

Your notebook is still the main interface. If the workflow would also be useful in napari, Fiji or QuPath, you can make it available through our plugins.

ExperimentalnapariFijiQuPath

Explore the ecosystem

Featured apps

See every app

Cite LabConstrictor

If you use LabConstrictor in your research, please cite the project to support its development:

Iván Hidalgo-Cenalmor, Marcela Xiomara Rivera Pineda, Bruno M. Saraiva, Ricardo Henriques, and Guillaume Jacquemet. Packaging Jupyter notebooks as installable desktop apps using LabConstrictor. arXiv preprint, 2026. doi:10.48550/arXiv.2603.10704

Read the preprintEach app page says what its authors ask you to cite.