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PNG to ICO Converter — Favicons Done Right
Browsers still ask for favicon.ico, and renaming a PNG to .ico doesn't make one — the ICO format is a container with its own header, and strict environments (Windows, some CDNs, older browsers) reject an impostor. This converter builds a real ICO file — your image scaled into the format's 256-pixel frame and wrapped in a proper ICO container — entirely in your browser, nothing uploaded.
The tool below is pre-set to ICO output. Square source images work best; anything else is scaled to fit.
or drop it anywhere in this box
JPG, PNG, WebP, HEIC, GIF, BMP, SVG, AVIF · everything runs on your device, nothing is uploaded
Custom target, 2–10240 KB
Match the portal's rule
Converting PNG with transparency to JPG fills the background white.
One tap applies the exact dimensions, format, and file-size rule for the form. Verified presets are checked against the official source.
0 KB— KB
ORIGINAL—
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Everything runs in your browser using the HTML5 Canvas — your photo is never uploaded to any server.
AD SLOT — BELOW TOOL
What actually makes a good favicon
Favicons render at 16 to 32 pixels in a browser tab — detail vanishes at that size. Strong silhouette, high contrast, minimal text (one letter at most), and a transparent or solid background survive the shrink; intricate logos don't. Test by zooming your result out until it's tab-sized. This tool embeds a 256px PNG inside the ICO container — the modern approach every current browser and Windows version understands, scaling down cleanly from one file.
Beyond favicon.ico
Modern sites pair the ICO with PNG icons for other surfaces — 192px and 512px for Android/PWA installs, 180px for Apple touch icons. Use the Dimensions tab to produce those from the same source image, and keep the ICO for the classic favicon.ico request at your site root.
Frequently asked questions
Is a renamed PNG the same as an ICO?
No — ICO is a container format with its own header and directory. Renaming changes the label, not the bytes; strict consumers reject it. This tool builds the real container.
What size should a favicon be?
This tool embeds your image at up to 256×256 inside the ICO — browsers scale it down to 16–32px in tabs. Start from a square, simple, high-contrast image for the best tiny-size result.
Is my logo uploaded during conversion?
No — the ICO is assembled in your browser and saved directly to your device. Nothing is sent anywhere.