Webpack to Vite
In this article, we’ll present how we went about swapping out Webpack with Vite in our frontend repo to achieve 1/10 server startup-time.
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Text Clustering using Deep Learning language models
When Kahoot! first launched in 2013, the multiple-choice quiz question was our first and only question type. Over the years, we have added many...
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Implementation of right-to-left content direction
How we introduced the Arabic language to our platform and what challenges we had.
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Sorting a masonry layout in Javascript
Here we'll present an algorithm in Javascript to resolve a particular layout problem. The front-end layout is column-based with non-aligned rows, which at the...
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How we built the iOS 14 widget for Kahoot!
We were excited when Apple announced during the WWDC that the upcoming iOS 14 would support widgets. Finally, we would be able to customize...
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Typescript and Java Type Systems
Here at Kahoot, our tech stack is comprised of Java on the backend and Typescript on the frontend. These two languages are similar in...
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Focus on accessibility – accessible menus and modals
In 2018 we commissioned accessibility testing of kahoot.com, real-user testing was enlightening. The feedback I found most useful was regarding :focus - or more...
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Introducing the Kahoot Tech Blog
Welcome to the Kahoot! tech blog! Today we're kicking off a series of articles contributed by members of our Engineering team.
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Optimizing JVM memory usage in Kahoot gameservers
Over the past couple of months we've learned a lot about JVM memory usage while investigating out-of-memory issues in our Java-based gameserver application. Lots...
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