ToolJovia
Images

Favicon ICO Generator

Create a multi-resolution ICO favicon with validated PNG resources.

✓ Browser-local processing

Loading tool…

How to use Favicon ICO Generator

Create a multi-resolution ICO favicon with validated PNG resources. The source is contained in square transparent canvases at16,32,48,64,128 and256 pixels. The ICO directory records32-bit resources and exact byte offsets.

  1. Provide the input and select the documented mode or options.
  2. Run the tool and review its result and any limits reported below.
  3. Copy the text result or download a separate output file.

Good to know

  • PNG, JPEG or WebP only;10MiB per image,24 megapixels and12,000 pixels per side. The browser applies supported EXIF orientation.
  • Raster export does not preserve animation, original color profiles or embedded metadata. Keep your original file.
  • The PNG-in-ICO container targets modern browsers/Windows. Very old icon readers may not support compressed PNG resources.
  • Processing happens in this browser tab. Inputs and results are not automatically saved or uploaded.

Common questions

What does Favicon ICO Generator process?

The source is contained in square transparent canvases at16,32,48,64,128 and256 pixels. The ICO directory records32-bit resources and exact byte offsets.

What happens to my original input?

The tool creates a separate result. Selected files and pasted data remain on this device; inspect the result before using it in another system.

Keep going with related tools

All images →
Images

Image Resizer

Resize a PNG, JPEG, or WebP image with an optional aspect-ratio lock.

Images

Image Compressor

Adjust image quality and download a smaller JPEG or WebP when possible.

Images

Image Dimensions

Read image width, height, format, size, and aspect ratio locally.

Images

ICO PNG Resource Extractor

Recover original PNG size variants from a local ICO as a ZIP with directory evidence. DIB and other resources are listed explicitly without conversion.

SEO

Web App Manifest URL and Scope Workbench

Inspect selected manifest members, resolve launch/icon URLs and test navigation targets against the declared scope.