Convert SVG to ICO (favicon)
Vector art is the ideal favicon source: your SVG renders from paths at four times its declared size, then each icon downscales cleanly from that — none of the blur you get upscaling small rasters. The result is one .ico with 16, 32 and 48px entries and transparency preserved exactly as designed.
Also useful: Convert SVG to PNG
How it works
Drop your SVG files onto the tool above, click to browse, or paste from the clipboard.
The vector renders at 4× its declared size, then downscales into crisp 16, 32 and 48px icons — no settings to fiddle with.
Download each .ico individually, or grab them all as a single zip.
SVG vs ICO
Rendering beats resampling — that is the entire case for vector sources. Each icon size rasterizes from geometry at 4× and downscales once, so the 16px entry keeps stroke weight that a shrunken PNG averages away. If the logo lives as SVG, converting anything else means converting a copy.
| SVG | ICO | |
|---|---|---|
| Compression | Vector (XML text) | Lossless (BMP or PNG entries) |
| Transparency | Yes (full alpha) | Yes (full alpha) |
| Animation | Yes (CSS/SMIL) | No |
| Support | All browsers; often rejected by upload forms | Universal for favicons |
| Best for | Logos, icons, illustrations | Favicons and Windows app icons |
Frequently asked questions
No — that is the whole reason I built this. The conversion runs in your browser using WebAssembly, so your files never leave your device; there is no server in the loop at all. It also means the tool keeps working offline once the page has loaded, and there is no file size limit beyond your device’s memory.
Because every size is rendered, not resized: the vector rasterizes large and downscales to each entry, so the 16px icon is as sharp as the geometry allows. Raster sources can only be as good as their original resolution — vectors sidestep the problem entirely.
Geometry survives; detail doesn’t. Thin strokes, small text and delicate flourishes all melt at 16px no matter how perfect the source. The favicons that read clearly are simple, high-contrast shapes — many design systems keep a simplified "mark only" variant of the logo for exactly this use.
Do both — that is the current best practice. Modern browsers take <link rel="icon" type="image/svg+xml"> and even honor dark-mode styles inside the SVG; the .ico from this tool covers Safari (which still ignores SVG favicons), crawlers and every legacy consumer of /favicon.ico.
A 256px PNG through PNG to ICO gets you 95% of the way — downscaling from a large raster is forgiving. The vector still edges it at 16px, where rendering from geometry preserves stroke weight that resampling averages away. If you maintain the logo as SVG anyway, converting from the source of truth is simply cleaner.
Detail that has nowhere to go: hairline strokes vanish below 32px, and text becomes texture. If your logo needs simplification, do it in the vector — thicken strokes, drop the wordmark — rather than hoping the downscale is kind. And check the SVG declares a viewBox; dimension-less files render at a fallback size that can surprise you.
Related tools
Convert SVG to PNG
Convert SVG to PNG in your browser — free, private, no upload. Pick a 1–4× export scale for crisp icons, logos and graphics at any size, alpha preserved.
Convert PNG to ICO (favicon)
Convert PNG to a multi-size ICO favicon in your browser — free, no upload. One file with 16, 32 and 48px icons with full alpha, ready for any site root.
Convert ICO to PNG
Convert ICO files to PNG in your browser — free, private, no upload. Extract a favicon or Windows icon as an editable lossless image with alpha intact.
Convert SVG to PDF
Convert SVG to PDF in your browser — free, private, no upload. Renders your vector at its declared size and embeds it losslessly as pixels, page sized to match.