How to convert JPG to ICO
- Choose or drop your JPG files. You can add several at once.
- Check that “To” is set to ICO.
- Press “Convert to ICO” and download the results — or all of them as one ZIP.
JPG vs ICO
JPG — JPEG image. JPG (JPEG) is the most widely supported photo format. It uses lossy compression, which keeps photos small by discarding detail the eye barely notices.
ICO — Windows icon. ICO is the icon format used for website favicons and Windows app icons. One .ico file holds the same picture at several sizes, so it looks crisp in a browser tab, on a taskbar and on a desktop.
Convert JPG to ICO when you need a file for favicons and Windows icons. JPG is better suited to sharing photos, email, and uploading to sites that accept nothing else.
FAQ
5Are my files uploaded anywhere?
No. The conversion runs in your browser using your own device’s processor. Your files are never sent to a server, so nobody — including us — can see them. You can even disconnect from the internet after the page loads.
Will I lose quality?
The icon contains six sizes — 16, 32, 48, 64, 128 and 256 pixels — each stored as a PNG, so transparency is kept. Non-square images are centred on a transparent square rather than stretched. Start from a simple, high-contrast picture: fine detail disappears at 16 pixels.
Is there a file size or daily limit?
No limits, and no sign-up. Because nothing is uploaded, we don’t pay for your conversions and have no reason to cap them. Very large files are limited only by your device’s memory.
Can I convert many JPG files at once?
Yes. Add as many files as you like; each is converted to ICO, and “Download all” saves them together as a ZIP.
Does it work on iPhone and Android?
Yes. It works in any modern browser — Safari, Chrome, Firefox or Edge — on phones, tablets and computers. Older or low-memory phones may be slower with very large files.