PNG to ICO Converter
Generate ICO favicons from PNG — packs 16, 32, 48, 64, and 128px layers into one file. No upload.
Best for developers creating a favicon.ico from a square logo PNG.
Drop files here
or click to browse · paste from clipboard
Accepts .PNG · Up to 1,000 files
How it works
Drop your files
Drag and drop, click to browse, or paste from clipboard. Up to 1,000 files at once.
Click Convert
Everything runs in your browser via WebAssembly. PNG to ICO Converter happens locally — no server involved.
Download
Download files individually or grab all at once as a ZIP.
Frequently asked questions
The output ICO contains five sizes: 16×16, 32×32, 48×48, 64×64, and 128×128 pixels. These cover every common use case — browser favicons (16×16 and 32×32), Windows desktop shortcuts (48×48 and 64×64), and high-DPI displays (128×128). Modern browsers and operating systems automatically pick the most appropriate size.
Each size is drawn into a square canvas, so the image is stretched to fill. For best results, crop your PNG to a square before converting. ConvertYard's Image Cropper tool can do this in one step.
Yes. Drop your square logo PNG, convert it, and place the resulting favicon.ico in your website root. Most browsers will detect it automatically if you also add <link rel="icon" href="/favicon.ico"> to your HTML <head>. For modern browsers, a 32×32 or 48×48 PNG favicon is also widely supported.
Yes. Drop them all in and ConvertYard processes each one in your browser — no uploads, no server queue. Each PNG produces one ICO with all five sizes packed in. Download all results as a ZIP when done.
Never. Conversion runs entirely in your browser. Your files never leave your device.
ICO is a Microsoft container format that holds multiple resolutions of the same image. You need it for: website favicons (the classic favicon.ico), Windows application icons, and Windows shortcut icons. For Apple app icons or Android adaptive icons, PNG is typically preferred over ICO.