PNG to ICO Converter
Make a favicon.ico or Windows icon from any image — with multiple sizes from 16 to 256 pixels in one file and transparency preserved.
- Free
- No sign-up
- Batch + ZIP
- No uploads
How to use the PNG to ICO Converter
- 1
Add your image
Drop a PNG, JPG, WEBP or SVG — ideally square and at least 256 × 256 pixels.
- 2
Choose icon sizes
Keep the recommended sizes or tick exactly the ones you need. Non-square images are centered.
- 3
Download the ICO
Get a single .ico file that contains every size you selected.
What is an ICO file used for?
Browsers show favicon.ico in tabs and bookmarks, and Windows uses ICO files for desktop shortcuts, folders and programs. Packing several sizes into one ICO lets each place pick the sharpest version.
PNG is a lossless format that keeps every pixel exactly and supports transparent backgrounds. It is ideal for logos, icons, screenshots and graphics, but photos saved as PNG are often very large.
ICO is the Windows icon format, also used for website favicons. One ICO file can hold several sizes (16, 32, 48 and up to 256 pixels) so the icon stays sharp everywhere.
Why people use ReadySetConvert
100% private
Images are processed on your device and never uploaded anywhere.
Lightning fast
No waiting for uploads or queues — results appear instantly.
Batch friendly
Convert dozens of images at once and download them as a ZIP.
Free forever
No sign-up, no watermarks, no daily limits.
Favicon generator and Windows icon maker
Start from a square logo for the cleanest result. The converter scales it with high-quality smoothing to every size you choose and packs them into one favicon.ico that works in Chrome, Safari, Edge, Firefox and Windows 10/11.
Icon and logo tools
Frequently asked questions
Which sizes should a favicon.ico contain?
16, 32 and 48 pixels cover browsers and Windows. Add 64, 128 and 256 for high-resolution displays and desktop icons.
Does the ICO keep transparency?
Yes. Each size is stored as a PNG inside the ICO, so transparent backgrounds are preserved.
How do I add the favicon to my website?
Upload favicon.ico to the root of your site, or add <link rel="icon" href="/favicon.ico"> to the head of your pages. In WordPress, use Appearance → Customize → Site Identity.
Is this PNG to ICO tool free?
Yes. It is completely free with no sign-up, no watermarks and no limits on the number of images.
Are my images uploaded to a server?
No. Your images are processed entirely inside your browser, so they never leave your device. That makes it private and very fast, even for large files.
Can I convert many images at once?
Yes. Drop or select as many images as you like. Each one is processed in turn, and you can download them one by one or all together as a ZIP file.