Is Flutter fast on web?

Bottom line: the Flutter web version downloads ~10x more data and loads ~10x slower than the main site . On the other hand, the Flutter app compiled with the HTML renderer is comparable in size to the main site (531 KB vs 323KB).23 Kas 2021

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Does Flutter replace HTML and CSS?

Well, with a normal HTML webpage, you deal with the page as a document. In Flutter though, the “page” (or what the user interacts with) is actually drawn to an HTML canvas. Flutter actually controls every pixel that is drawn to the screen and doesn’t use HTML, JavaScript, or CSS to define any of its look or logic .

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