Image to ICO
Build a website favicon.ico with selectable packed sizes
Everything runs inside your browser
Image to ICO, right in your browser: open it and start, with no sign-up, and your files never leave your device.
Guide and FAQ
What it does
- Pick the sizes to embed; the browser chooses the best one for each context.
- Top is the real browser-tab size; below, every size is shown at true 1:1 pixels.
- Every size below is packed into a single .ico; click one to download that size as PNG.
- Modern sites usually need PNG variants too, e.g. apple-touch-icon or PWA icons.
How to use it
- Drop your images onto the page, or click to choose files.
- Adjust the settings you need; the result previews as you go.
- Export when it looks right, and the file saves straight to your device.
Frequently asked questions
Are my files uploaded to a server?
No. Everything in PicZero runs in your browser. Your images are never uploaded, and the server never touches your files.
Is it free? Are there any limits?
It is completely free, with no limits on the number of images, how often you use it, or file size. No account or sign-in is required.
Does it work on phones and computers?
Yes. It runs in modern browsers such as Chrome, Edge, Safari and Firefox, on phones, tablets and desktops.