NiceGUI: Web-based user interfaces with Python. The nice way.

Security

• ⚠️ Prevent arbitrary file access when using app.add_media_files (GHSA-hxp3-63hc-5366 by @y4rvin, @evnchn, @falkoschindler)
• ⚠️ Prevent XSS attacks via user-defined content for ui.add_css, ui.add_scss, or ui.add_sass (GHSA-72qc-wxch-74mg by @twmoon, @evnchn, @falkoschindler)
• ⚠️ Prevent XSS attacks via user-defined SVG content in ui.interactive_image using a new sanitize parameter (GHSA-2m4f-cg75-76w2 by @twmoon, @evnchn, @falkoschindler)

Deprection

• ⚠️ Deprecate ui.add_scss and ui.add_sass in favor of ui.add_css (#5321, #5449 by @falkoschindler, @evnchn)

New features and enhancements

• Load Vue components faster (#5496 by @evnchn)
• Load codehilite.css faster (#5497 by @evnchn, @falkoschindler)
• Load headwind.css faster (#5513 by @evnchn)
• Allow emitting events from other threads (#4985, #5546 by @MaidScientistIzutsumiMarin, @rodja, @ftilde, @evnchn, @falkoschindler)
• Allow upgrading to pywebview 6 (#5555 by @paco-sevilla, @evnchn, @falkoschindler)
• Drop support for non-ESM support browsers (#5514 by @evnchn)
• Warn about accidental script mode due to missing shared=True in ui.add_head_html (#5472, #5478 by @davetapley, @evnchn, @falkoschindler)
• Forward --clean and --noconfirm to pyinstaller in nicegui-pack (#5469 by @himbeles)
• Let element.clear() return the element (builder pattern) (#5461 by @falkoschindler, @evnchn)
• Raise exception when trying to run script mode in REPL (#5414, #5456 by @defkev, @falkoschindler, @evnchn, @python-and-novella, @plambertgis)
• Compile SASS and SCSS in the browser (#5321, #5449 by @falkoschindler, @evnchn)
• Support wildcard routing in ui.sub_pages (#5437, #5440, #5529, #5530, #5541 by @davetapley, @evnchn, @falkoschindler, @rodja)
• Lazily start active link refresher task (#5438 by @bulletmark, @evnchn, @falkoschindler)
• Remove orjson dependency for PyPy (#5161 by @evnchn, @falkoschindler)

Bugfixes

• Fix .tooltip() for complex elements like ui.table (#5447, #5482 by @pandabearcodes, @python-and-novella, @evnchn, @himbeles, @falkoschindler)
• Fix sizing problem of ui.interactive_image (#5479, #5517 by @daniel-anderberg, @evnchn, @falkoschindler)
• Fix default values of ui.range (#5467 by @Mick235711)
• Fix padding of horizontal ui.stepper (#5434, #5463 by @Buruxianian, @evnchn, @falkoschindler)

Documentation

• Show a screenshot per example on the website (#4391, #5044 by @kler, @leocjj, @rodja, @falkoschindler, @evnchn)
• Improve loading speed (#5507, #5515 by @evnchn)
• Add a note about native mode on Windows requiring .NET (#5544 by @phifuh, @falkoschindler)
• Add missing link in ui.sub_pages demo (#5498, #5504 by @evnchn, @falkoschindler)
• Remove error message "The type of the None singleton." (#5488, #5489 by @evnchn)

Testing

• Add possibility to perform tests without NiceGUI pytest plugins (#5377, #5380 by @himbeles, @evnchn, @rodja, @falkoschindler)

Dependencies

• Bump actions/checkout from 5 to 6 (#5506 by @dependabot)
• Exclude broken FastAPI version 0.123.5 to avoid "coroutine object not iterable" (#5535 by @frankhuurman, @edouardrolland, @Alyxion, @falkoschindler, @evnchn)

Infrastructure

• Migrate to uv (#5311, #5547 by @falkoschindler, @evnchn, @EmberLightVFX, @pascalzauberzeug, @himbeles, @codingpaula)
• Add codespell support (#5368 by @yarikoptic, @evnchn, @falkoschindler)

Special thanks to our top sponsors Lechler GmbH and LambdaTest ✨

and all our other sponsors and contributors for supporting this project!

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