Make an ICO.
Turn any image into a multi-resolution .ico file for use as a website favicon.
Files never leave your device
Local processing
Conversions happen in your browser. Nothing is uploaded.
Instant results
Native browser APIs mean no server queue, no waiting room.
No account needed
Open, drop, convert. No sign-up, no email, no friction.
Frequently asked questions
What sizes are in the ICO file?
16, 32, 48, 64, 128, and 256 pixels. Browsers and operating systems pick the size they need automatically. This covers everything from browser tabs (16px) to desktop shortcuts (256px).
Should I use a square image?
Yes. Non-square images get squashed to fit. Crop your image to a square first using the Crop Image tool.
How do I use the result?
Upload it to your web root and add the link tag `` inside your HTML head. Many CMSes have a favicon upload setting too.
Are my files really not uploaded?
Correct. Every conversion in this tool runs in your browser using JavaScript and the local file APIs. There is no server-side processing, no file upload, no temporary storage, and no log of what you converted. You can verify this by opening your browser's network tab while converting — the only traffic is loading the page itself.
Do I need an account or to install anything?
No. Open the page, drop your file, download the result. No signup, no email, no extension, no app.
Is there a file-size limit?
Not from us. The practical limit is your device's memory — browser tabs typically handle files in the hundreds of megabytes range without issues. Very large files may take longer to process on phones than on laptops.