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Extensions and themes

Warning: Widget and custom component support have been removed as of Qlik Sense August 2021. See Deprecation Notice – Qlik Sense Widgets and Custom Components FAQ for more information.


Visualization extensions use the same set of technologies as standard Qlik Sense visualizations, and if developed properly, the handling of them is identical to standard visualizations.

Visualization extensions

Get started building visualization extensions

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Custom themes

Themes are used to style your Qlik Sense apps and you can create your own custom themes based on your company standards.

Custom themes

Get started building custom themes