Image Toolbox

Local browser processing

ICO / Favicon Generator

Generate favicon PNG sizes from 16 to 256 px locally and download one ZIP package.

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How to use this tool

  1. Upload a square or clear source image in PNG, JPG, or WebP format.
  2. Generate favicon sizes from 16x16 to 256x256.
  3. Download the favicon PNG package as a ZIP.
  4. Use the generated sizes in your website icons or manifest as needed.

Best use cases

  • Create favicon assets for a website or web app.
  • Generate favicon sizes from a logo or brand mark.
  • Make website icon files for browser tabs, shortcuts, and app manifests.
  • Prepare multiple favicon PNG sizes without installing design software.

Supported formats

  • Input: PNG, JPG/JPEG, and WebP.
  • Output: ZIP package containing PNG favicon sizes.
  • Generated sizes: 16x16, 32x32, 48x48, 64x64, 128x128, and 256x256.

Privacy and local processing

  • Favicon generation uses local Canvas resizing and JSZip packaging.
  • The uploaded image is not sent to a server.
  • This pure browser version exports PNG favicon sizes rather than a binary .ico file.

FAQ

Can I create a favicon from a PNG?

Yes. PNG is a good source format, especially for logos with transparency.

Which favicon sizes are generated?

The package includes 16x16, 32x32, 48x48, 64x64, 128x128, and 256x256 PNG files.

Does this create a true .ico file?

No. This browser-only version provides a ZIP of PNG favicon sizes, which works well for modern websites.

What kind of image should I upload?

A square logo or icon with clear edges usually produces the best favicon results.

Are favicon files generated locally?

Yes. Resizing and ZIP creation happen in your browser.

Is my logo uploaded?

No. The image is not uploaded to a server.