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Upload a square image to instantly generate a full ZIP package containing all modern favicon sizes (16x16 up to 512x512) and a web app manifest.json.
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Add this fast, responsive, browser-based calculator directly to your blog, university portal, or company site. No API key required. Check the tool’s assumptions and limitations before sharing results.
Developer & Text Tools
Upload a square image to instantly generate a full ZIP package containing all modern favicon sizes (16x16 up to 512x512) and a web app manifest.json.
Upload logo graphics or design icon assets. The generator renders ICO, PNG, and SVG web app icon packages ready for deployment.
Generate standard web favicons and manifest files instantly. Yuitility keeps the workflow fast and focused, so you can complete the job without creating an account.
Tools that pair with the favicon generator in the same task.
Design beautiful Open Graph images for social media sharing.
Open the open graph (og) generatorConvert images to WebP, PNG or JPEG locally.
Open the image format converterGenerate color schemes and test text-to-background contrast using official WCAG guidelines.
Open the palette & contrast checkerGenerate highly secure random passwords with customizable parameters and strength analysis.
Open the password generatorSee every tool in Developer & Text Tools, or browse all Yuitility tools.
