How to convert JPG to ICO
Follow these steps to convert JPG to ICO:
- Add one or more JPG files — drag and drop them or click to browse.
- Click Convert to ICO and let the conversion run in your browser.
- Download your new ICO files individually or as a batch.
What is JPG?
JPG (also written JPEG) is the most widely used photo format on the web. It uses lossy compression that discards detail the human eye is unlikely to notice, producing small files that are perfect for photographs and complex images with smooth colour gradients.
What is ICO?
ICO is the icon container used by Windows and by websites for the favicon shown in browser tabs. A single ICO file can hold several sizes (16×16 up to 256×256) so the right resolution is always available.
JPG vs ICO: how they compare
Before converting, it helps to know how JPG and ICO stack up. The table below breaks it down.
| JPG | ICO | |
|---|---|---|
| Format type | Image | Image |
| Compression | Lossy | Lossless |
| Quality | Lossy | Lossless |
| Transparency | No | Yes |
| Best for | Photographs | Website favicons |
Why convert JPG to ICO?
The usual reason to turn JPG into ICO is compatibility: ICO is the right fit for website favicons and windows application icons.
What ICO gives you: holds multiple sizes in one file, native Windows and browser support and supports transparency.
Where JPG falls short: lossy — quality degrades each time you re-save, no transparency and compression artefacts on sharp edges and text. Converting keeps your content while moving to a format that matches where the file is going.
Tips for the best results
- ICO is lossless, so your converted files keep every detail of the original JPG.
- You can convert several files in one go — add as many JPG files as you like and download them together.
- Everything runs locally in your browser, so even large files convert quickly and nothing is uploaded.
JPG to ICO — frequently asked questions
- How do I convert JPG to ICO?
- Add your JPG file, click Convert to ICO, and download the ICO result. The whole process happens in your browser and takes just a few seconds.
- Is it free to convert JPG to ICO?
- Yes. This JPG to ICO converter is completely free with no sign-up, no watermarks and no limit on the number of files you can convert.
- Are my JPG files uploaded to a server?
- No. Conversion runs entirely on your device using your browser, so your files never leave your computer or phone.
- Does converting JPG to ICO reduce quality?
- No. ICO is a lossless format, so the conversion preserves the full quality of your original JPG.
- Can I convert multiple JPG files at once?
- Yes. Add as many JPG files as you like and convert them in a single batch, then download each ICO result.