ICO is the icon container used by Windows for desktop shortcuts, applications, and browser favicons. While modern web favicons can be PNG or SVG, .ico is still the format that guarantees compatibility everywhere — especially with legacy browsers and Windows itself. Converting a JPG to ICO is the fastest way to use a photo or logo as a custom icon.
When FreeConvertImg converts a JPG to ICO it resizes the image to standard icon dimensions and packs it into a .ico file the operating system understands. Because JPG has no transparency, the icon will have a solid background — for transparent icons you should start from a PNG instead. For the sharpest result, use a square source image.
Everything happens locally in your browser, so your file is never uploaded. Convert one image or a batch, and download the icons individually or as a single ZIP. No watermarks, no sign-up, no limits.
Frequently Asked Questions
What size icon does this create?
A standard icon size suitable for favicons and desktop shortcuts. For best results, use a square JPG so nothing gets cropped or distorted.
Can I use the .ico file as a website favicon?
Yes — drop it into your site root as favicon.ico, the format every browser recognizes by default.
Why does my icon have a white background?
JPG does not support transparency, so any empty area becomes solid. If you need a transparent icon, convert from a PNG with a transparent background.