Step 1: Supply your JPEG files using the button above or by haul and lay.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Get your converted ICO files.
JPEG to ICO Conversion FAQ
What does the JPEG to ICO converter do?
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JPEG is already lossy-compressed, so converting to ICO does not magically restore detail — it just stores the existing pixels without further loss. ICO is a good choice when you plan to edit the image further and want each save to preserve quality.
Will my ICO have a transparent background?
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JPEG files have no alpha channel, so the result will have a solid background. To get transparency in ICO, use the Remove Background tool on the ICO output.
Is the JPEG to ICO conversion reversible?
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You can convert the ICO back to JPEG on this site. If either format involved is lossy, the round-trip is not bit-perfect even though it is visually or audibly close.
Can I get transparency once the image is ICO?
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The ICO format supports it, but the conversion cannot invent it. A JPEG has no alpha channel, so every pixel including the background arrives fully opaque. Run /removebackground/ afterwards to cut the subject out — then the alpha channel ICO provides has something to store. ICO lets one file serve a taskbar, a file listing, a desktop shortcut and a browser tab without any of them looking resampled.
Does converting JPEG to ICO restore the quality that was lost?
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No. The compression artefacts already baked into the JPEG are ordinary pixel data now, and ICO preserves them perfectly rather than removing them. The file usually gets larger, sometimes several times larger. It is still worth doing before editing, because further edits will not stack a second generation of loss on top. JPEG shares every JPG limitation — no alpha, generational loss on re-save — with the added nuisance of software that treats the two extensions differently.
Will my CMYK colour survive the conversion to ICO?
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It is converted to sRGB, because ICO has no CMYK mode. For screen use that is exactly what you want. For commercial print it is not — the gamut shift changes how saturated colours reproduce on press, so send the printer the original JPEG rather than the ICO. ICO is not a general image format: it is square, small, and no photo editor treats it as a first-class working file.
Is there a file-size limit when converting JPEG to ICO?
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Free conversions have a size limit per file, set by the type of file, and the page tells you when a file is over it. A paid plan removes that limit, so much larger files can be converted.
Can I batch-convert several JPEG files to ICO at once?
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Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.
What happens to my JPEG files after the conversion?
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Uploaded files are processed on our own conversion servers, nobody looks at them, and they are not shared. The upload and the converted file are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
Where can I open a ICO file?
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ICO opens in mainstream image viewers and editors. For web embedding, consider converting to PNG or WebP first since ICO is not always natively supported in browsers.
Do I need to install software to convert JPEG to ICO?
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No. The converter runs entirely in your browser plus our cloud — no plugin, no install, no admin rights. It works on Windows, macOS, Linux, ChromeOS, iOS, and Android.
Do I need an account to convert JPEG to ICO?
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Yes. One conversion an hour is free, with no account needed, for a file within the free size limit. A paid plan removes the hourly limit and the size limit, and lets you add several files to one job.
