FreeSimple Web App (1 file)

Responsive Preview

Preview a web page at popular phone, tablet and breakpoint sizes side by side.

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Runs in a secure sandbox. Anything it saves is kept only until you close the page.

Responsive Preview shows a page at the sizes of popular devices (iPhone, Pixel, Galaxy, iPad) and common CSS breakpoints, so you can check a layout quickly. Note: some websites refuse to be shown inside a frame.

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