Favicon.one Generator

Favicon.one is a free browser-based favicon toolkit: generate a complete favicon set from text, any emoji, hand-edited SVG, or PNG/JPG conversion, then export all sizes (16px-512px, apple-touch-icon) as a ready-to-deploy ZIP with the HTML snippet. Beyond the generator it includes a favicon checker that audits any live website's icons, a favicon downloader, dedicated converters (PNG to ICO, SVG to ICO, JPG to favicon), size-specific pages, and emoji-to-favicon pages covering the full Unicode emoji set. No signup and no server upload — all processing happens in the browser, so it keeps working offline once loaded. Ships with 14 in-depth guides (favicon in HTML/React/Next.js/WordPress/Shopify, dark-mode favicons, apple-touch-icon, blurry-favicon fixes). Available in English, Chinese, Japanese and Spanish.