PNG to ICO — Convert in Your Browser

Why convert PNG to ICO?

Browsers and Windows still ask for an .ico when it comes to favicons and desktop shortcuts. Converting your square PNG produces the multi-size icon file those systems expect, so your site's tab shows a sharp mark instead of a blank page symbol.

PNG is a lossless raster format built for screenshots, logos and anything with sharp edges or transparency. Every pixel survives a save, which is why design and UI work lives in it.

When PNG → ICO is the right move

Creating favicon.ico for a website's root directory.
Giving a Windows application or shortcut a custom icon.
Replacing a blurry legacy favicon with a crisp modern one.

Quality, size and what changes

Start from a square PNG of at least 256×256 with transparency. The ICO packs standard sizes — typically 16, 32, 48 and 256 pixels — into one file, and fine detail simply disappears at the smallest size, so keep the design bold.

What you gain with ICO: One file carrying 16, 32, 48 and 256 pixel variants, understood by every browser and by Windows itself.

How it works

Drop your PNG file above and Morphio decodes it locally, then re-encodes it as ICO using WebAssembly + the browser's native codecs. Nothing is ever uploaded — your files stay on your device. Batch as many files as your machine can handle. See exactly how in-browser conversion works.

PNG to ICO — frequently asked questions

How do I convert PNG to ICO without uploading the file?

Open the PNG to ICO page, drop your image on the drop zone and press convert. Morphio runs an in-browser image pipeline built on Canvas and WebAssembly codecs, so the PNG data never leaves your device and no server ever receives a copy.

Does converting PNG to ICO lose quality?

Colour profile and pixel dimensions are preserved; you choose the quality level before the file is written. Converting PNG to ICO only rewrites the container and encoding you asked for — the source file on your disk is never modified.

Is the PNG to ICO converter free, and how big can the file be?

Yes. The free plan covers 10 conversions a day with files up to 200 MB and adds no watermark or sign-up. Morphio Pro ($5/month, or $29 once for lifetime access) removes the daily cap and raises the per-file limit to 5 GB.

What size PNG should I start from?

A square 256×256 (or larger) PNG with a transparent background gives the cleanest results at every packed size.

Do I still need an .ico file?

Modern browsers accept PNG favicons, but favicon.ico remains the safest default and is still what Windows uses for shortcuts.

PNG to ICO Converter

Your Vault is empty