Convert JPG to ICO
JPG (JPEG) is the most common photo format, using lossy compression for small file sizes. ICO is the container Windows and browsers require for favicons and application icons, so this conversion is about producing that specific file type rather than about quality or size. The conversion runs entirely in your browser: there is no upload, no file size limit and no watermark on the result.
Drop your JPG files below and download ICO in seconds. Free, unlimited and completely private: the conversion runs inside your browser, so your files never leave your device and are never uploaded to a server.
No upload. Works with your network switched off. Check it yourself, or read what actually happens to your file.
Why convert JPG to ICO?
JPG has been the default photo format since the nineties and opens everywhere, from ancient office software to modern phones. Its lossy compression shrinks photos dramatically while keeping them looking good at normal viewing sizes. It cannot store transparency, so transparent areas are filled with a solid background.
ICO files bundle one or more icon sizes into a single file that Windows and browsers use for favicons and app icons. Regular image viewers often refuse to open them, and most editors cannot save them, so a converter is the practical way in or out of the format.
JPG vs ICO at a glance
| JPG | ICO | |
|---|---|---|
| Full name | JPEG image | Windows icon |
| Compression | Lossy | Contains PNG or BMP data |
| Transparency | No | Yes |
| Best for | Photos and general web images | Favicons and Windows application icons |
What changes when you convert JPG to ICO
| What happens | |
|---|---|
| Image quality | Depends on the quality setting above, which controls how much detail ICO keeps. |
| Transparency | JPG has no alpha channel, so there is no transparency to lose. |
| EXIF and GPS | Removed. The conversion goes through a pixel buffer, so camera data and location are not carried into the ICO file. |
| Colour profile | Not carried across. The image is handled in sRGB, which is right for the web and wrong for colour-managed print work. |
| Animation | Not applicable. JPG files here are single images. |
| File size | Varies with the content of the image. No figure is quoted here, because none has been measured on a documented test set. |
How to convert JPG to ICO
- Drop one or more JPG files into the box above, or click to browse.
- ImageConvert converts each file to ICO right on your device.
- Download a single file, or grab everything at once as a zip.
Frequently asked questions
What is a JPG file?
JPG (JPEG) is the most common photo format, using lossy compression for small file sizes.
What is an ICO file?
ICO is the Windows icon format, used for favicons and application icons.
Is it free to convert JPG to ICO?
Yes. There are no limits, no watermarks and no account needed. Convert as many JPG files as you like.
Are my files private?
Completely. Your JPG files never leave your browser and are never uploaded to a server, so your images stay on your device.