Accessibility improvements in Jupyter Book

Fri, 22 May 2026 00:00:00 +0000

We helped shepherd and implement a batch of accessibility improvements in myst-theme as part of the Jupyter Book project. The Jupyter Book team blogged about it here:

jupyterbook.org/blog/posts/2026/accessibility-improvements

Accessibility is a key part of making technology broadly impactful and useful, and it’s increasingly a requirement for the institutions we serve. The work started from an audit by Silas at BIDS, who surfaced and iterated on the issues with the rest of the Jupyter Book team.

A few of the fixes that landed:

Improved keyboard focus for horizontally scrollable content
Better ARIA semantics for screen readers
Better color contrast in ANSI outputs
Better re-flow / re-size for dynamic screen widths

The team also published accessibility statements you can point your own institutions to:

Jupyter Book accessibility statement
MyST accessibility and performance guide

Acknowledgements #

Thanks to Silas ( @pancakereport) at BIDS for surfacing these issues and iterating on them!

Accessibility | 2i2c

Accessibility improvements in Jupyter Book

Acknowledgements #