PNG to ICO Converter — Free, Private, No Upload

Make a multi-size Windows/website ICO icon from a PNG. Free, no sign-up, and your files never leave your device.

Free, with no sign-up and no watermark. The file is processed in your browser and never uploaded.

PNG is lossless and supports transparency, which makes it ideal for screenshots, logos and graphics — but photos stay large. ICO is the Windows icon format; one file holds the same icon at several sizes, and browsers use it for website favicons.

An ICO file bundles several sizes of one icon; Windows and browsers pick the best one for each place it’s shown.

Step by step

  1. Add your images: Drop your PNG files on Upload PNG images, or click to browse. Other image types (PNG, JPG, HEIC, WebP, TIFF and more) are accepted too.
  2. Choose options: Tick the Icon sizes to include (16, 24, 32, 48, 64, 128, 256). Non-square images are centred on a transparent square.
  3. Convert: Click Convert to ICO. Each image is decoded and re-saved in your browser.
  4. Download: One image downloads straight away; several download together as a ZIP. You can also download any single result from the list underneath.

Handy for

Website favicon

Create a favicon.ico for your site’s tab icon.

Windows shortcuts and apps

Use a custom icon for folders or programs.

Desktop software

Bundle multi-size icons for installers.

Browser extensions

Generate small icon sizes from one image.

Good to know

  • Start from a square, transparent PNG of at least 256×256 for the crispest result.

  • For a website, 16, 32 and 48 are enough; add 256 for Windows high-DPI.

  • Use Resize (optional) → Set width to shrink large photos at the same time — handy for email and upload limits.

Questions

Are my images uploaded anywhere?

No. The conversion runs entirely in your browser, so your images never leave your device, and it keeps working offline once the page has loaded.

Can I convert several images at once?

Yes. Add as many images as you like. A single result downloads straight away; several results download together as a ZIP, and each one also has its own Download link in the results list.

Which programs can open these icons?

Each size is stored as PNG inside the ICO, which Windows Vista and later, macOS and all modern browsers support.

More Image Converter tools

  • JPG to ICO — Turn a JPG into a multi-size ICO icon for websites and Windows.
  • ICO to PNG — Extract the images inside an ICO icon file as PNGs — the largest or every size.
  • TIFF to JPG — Convert TIFF scans and photos to JPG, including every page of multi-page TIFFs.
  • TIFF to PNG — Convert TIFF files to lossless PNG, one image per page.
  • BMP to JPG — Convert large uncompressed BMP bitmaps into compact JPGs.
  • BMP to PNG — Convert BMP bitmaps into lossless, much smaller PNGs.

All Image Converter tools