Convert
JPG to ICO Converter
Convert a JPG into a multi-size ICO file for use as a favicon or desktop icon. It runs in your browser, and nothing is uploaded.
Your images never leave your device
How to use JPG to ICO
- Drop your JPG files on the page or pick them from your device.
- Wait while each file is converted to ICO on your device.
- Download the ICO files one by one, or all together as a zip.
Frequently asked questions
Can I use a JPG photo as a favicon?
Yes, but small sizes are unforgiving. Crop to a square around one clear subject first. A busy photo turns into a smudge at 16 pixels.
Why does my icon have a solid background?
JPG cannot store transparency, so the picture's own background becomes the icon background. For a transparent icon, convert from PNG or SVG instead.
How many sizes does the ICO include?
Up to six, from 16 to 256 pixels, and only those no larger than your JPG. A small JPG produces an ICO with fewer sizes.
Are my JPG files uploaded anywhere?
No. The conversion runs in your browser using WebAssembly, so your JPG files stay on your device. There is no signup, no watermark and no cost, and you can convert a whole batch and download it as a zip.
About JPG to ICO
Sometimes the only copy of a logo or avatar you have is a JPG, and a site builder, browser or Windows shortcut wants an ICO. The converter writes one .ico file with PNG images at 16, 32, 48, 64, 128 and 256 pixels, limited to the sizes your JPG is large enough to supply. A square JPG of 256 pixels or more gives the full set.
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JPG has no transparency, so the icon is a solid square with your picture's background; if you want a see-through or rounded shape, start from a PNG or SVG with transparency instead. A non-square JPG is centered on a transparent square rather than stretched, which leaves transparent bands around it. JPG compression noise around text and edges can become visible when the image is shown small, so a clean logo file gives a better icon than a heavily compressed one. Photographs rarely read well at 16 pixels, and a simple crop of a face or one bold shape works better than a whole scene. Metadata is removed, and orientation is applied first.
JPG is lossy, using discrete cosine transform compression; ICO is a container for several sizes of the same icon, each stored here as a losslessly compressed PNG image. JPG has no transparency, so the ICO result is fully opaque and looks the same on any background. Compatibility: Windows uses it for program, shortcut and file icons, and every browser accepts it as a site icon. Image editors and upload forms rarely accept it as an ordinary picture.