Convert JPG to ICO Online
Turn any JPG image into a multi-resolution ICO file — perfect for website favicons, Windows desktop shortcuts, and application icons.
↑ Select output format — all files convert to this format
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Why convert JPG to ICO?
The ICO format is what Windows uses for application icons and what browsers traditionally request as /favicon.ico when they hit your site. Although modern browsers happily accept PNG and SVG favicons too, ICO is still the safest universal fallback because every browser since IE5 has supported it.
An ICO file isn't just a renamed image — it's a container that can hold the same icon at multiple resolutions (16×16, 32×32, 48×48, 256×256). The browser or operating system picks whichever size matches the context (tab strip vs taskbar vs file manager). Our converter generates the standard set automatically.
If your source is a JPG photograph, expect some quality loss when downsizing to 16×16: small icons benefit from being designed as pixel art rather than scaled-down photos. For best results, pre-crop your JPG to a square and use a high-contrast subject.
Common use cases
- Generating a website favicon
- Creating custom Windows shortcut icons
- Building app icon sets for legacy platforms
- Replacing the default icon on .lnk files
How to convert JPG to ICO
- Upload your JPG files — drag and drop into the uploader above, or click to browse. Up to 20 files per batch, 25 MB each.
- Confirm ICO as the output format — the format selector is already pre-selected for this conversion. You can change it before clicking Convert if you change your mind.
- Click Convert — your JPG files are processed on our server in seconds. A progress bar shows live status for each file.
- Download the ZIP — your converted ICO files are bundled into a ZIP for one-click download. Source files are deleted immediately afterwards.
JPG to ICO — Frequently Asked Questions
Is the JPG to ICO converter really free?
Yes — completely free, with no signup, no credit card, no watermarks, and no file count limits. The full feature set is available without any account.
Are my JPG files private?
Yes. Files are stored in a private directory outside the web root, never shared with anyone, and deleted immediately after you download your ZIP.
How many JPG files can I convert at once?
Up to 20 JPG files per batch, with a maximum of 25 MB per file. There are no limits on the number of batches you can run.
Does the converted ICO keep the same image quality?
Yes. ICO uses lossless compression, so every pixel from your JPG source is preserved exactly. The resulting file is bit-for-bit accurate.
What sizes does the ICO contain?
The generated ICO file is a multi-resolution container with the standard favicon sizes (16×16, 32×32, 48×48, 256×256). Browsers and operating systems automatically pick the right size for each context.
Related image conversions
Or browse the full supported conversions matrix on the homepage.