Hey all! I love the new canvas model/UI for GPT-4o, and the cool features it comes with, but was shocked to see that it doesn’t (yet) let you view a preview of HTML/CSS code. I have experience with developing Chromium extensions, so I decided to dig into seeing if an extension could be built that l…

HTML Viewer for ChatGPT - New Chromium Extension

pawan June 6, 2025, 7:52am 8

Awesome work! I’ve been using Online HTML Viewer for previews, but having this built into the ChatGPT canvas is a game-changer. Really useful!

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