SVG to ICO Converter
Drop an SVG logo, get a multi-size favicon.ico rasterized cleanly at every size. Conversion runs in your browser.
Drop your SVG file here
Converts to .ico — stays on your device
Why convert SVG to ICO?
- Building a favicon.ico from a vector logo for a Next.js, Astro, or Hugo site that needs to ship /favicon.ico for legacy browsers.
- Generating a Windows app icon (.ico) from an SVG asset in an Electron, Tauri, or Flutter desktop project.
- Producing a favicon for a WordPress or Shopify theme directly from the brand SVG without an intermediate PNG export.
- Creating crisp favicons for Retina and high-DPI displays — vector source means every embedded size is sharp.
- Updating an icon kit for a design system where the source assets live as SVGs in Figma exports.
- Quick favicon generation for a personal site or portfolio when your only logo source is an inline SVG.
How our converter works
Your SVG is rasterized to six standard favicon sizes — 16, 32, 48, 64, 128, and 256 px — through your browser's native SVG renderer (the same engine that renders SVGs on web pages). Each size is rendered cleanly from the vector source, then packaged into a multi-resolution ICO container. SVG transparency is preserved as full alpha across every size. Nothing is uploaded — the SVG never leaves your browser.
SVG vs ICO — what's the difference?
| Feature | SVG | ICO |
|---|---|---|
| Type | Vector — XML-based | Raster bundle — multiple PNG-encoded sizes |
| Scalability | Infinite — sharp at any size | Fixed — only the embedded sizes |
| Transparency | Full alpha | Full alpha — preserved |
| Best for | Modern web (rel="icon" SVG favicons) | /favicon.ico legacy fallback, Windows icons |
Frequently asked questions
Why convert SVG to ICO if modern browsers support SVG favicons?
Modern browsers do support `<link rel="icon" type="image/svg+xml">`, but many platforms still request /favicon.ico by default — older browsers, RSS readers, corporate proxies, some search engine crawlers, and Windows itself for desktop apps. Shipping both an SVG favicon and a fallback favicon.ico is the most robust setup.
What sizes does the output ICO contain?
Six: 16, 32, 48, 64, 128, and 256 px. Each is rasterized cleanly from the vector source, so the small sizes (16/32) look as crisp as the large ones.
Will my SVG transparency carry over?
Yes. Every size inside the ICO has a full alpha channel, so transparent backgrounds and soft edges from the SVG render correctly.
What if my SVG has no width/height attributes?
We read the viewBox or default to 1024×1024. As long as the SVG renders correctly in a browser, it converts correctly here.
Will SVG strokes and gradients survive?
Yes — anything the browser can render to a canvas (strokes, gradients, filters, masks, clip paths) is faithfully rasterized into each ICO size.
How is this different from RealFaviconGenerator or Favicon.io?
Both upload your file to their servers and produce extensive icon packs (Apple touch icons, manifest files, etc.). FormatFixer does just the SVG → ICO conversion in your browser — single output, nothing uploaded. For a complete favicon kit with manifest and Apple icons, those tools are still useful; for the .ico file alone, this is faster.
About the SVG format
SVG is the modern web's vector format — infinitely scalable, tiny file size for shapes, and editable as XML. ICO is Windows' icon container, dating to 1985 — a bundle of raster images at multiple sizes packed into one file. Despite the 40-year gap, both still matter: SVG for `<link rel="icon">` modern declarations, ICO for the legacy /favicon.ico path that every browser still hits by default. Converting SVG to ICO rasterizes the vector at six standard sizes and packages them, giving you a single file that works everywhere from IE 11 to Windows Explorer.