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Dev tools · June 14, 2026

SA

Sabela – A Reactive Notebook for Haskell

Sabela is a reactive notebook for Haskell. The name is the Ndebele word for "to respond." Cells respond to each other on change. Initially it was meant as a tool for working with data but it has turned out to have a lot of pedagogical value outside of data analysis work. There is a gallery to read through on the website and a number of examples in the repo showcasing things like: * Python interop * Widgets and animation * Exploratory data analysis If you find any of this interesting please try it out. Any feedback is welcome.

In plain words

Sabela is a reactive notebook environment for Haskell where cells automatically update in response to changes in other cells. Originally designed for data analysis work, it has proven valuable for teaching Haskell concepts as well. The tool supports Python interoperability, interactive widgets, animations, and exploratory data analysis. Examples and a gallery of use cases are available to help users get started.

written from the facts on this page · September 2026

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