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JPG to ICO converter

Convert JPG to ICO in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.

I want ICO
90%
Icon sizes
How to make the SVG

Tracing suits logos, icons and flat artwork and scales cleanly. Photos are better kept as pixels inside the SVG.

16
50%
Dither Scatters black dots to suggest gray, instead of a hard cut-off.
Advanced 5
Keep the animation For animated GIF, WebP and APNG sources. Turn off to save just the first frame.
Rotate
Mirror horizontally
Mirror vertically

For an exact width and height, use the Resize Image tool instead.

Bytes of your files sent anywhere: 0 B

Related conversions

Need it the other way round? Convert ICO to JPG

Other ways to convert JPG

Convert other formats to ICO

Read more about the JPG format and the ICO format, or see every image tool and all image conversions.

Should you convert JPG to ICO?

You want a favicon or desktop icon from a photo or logo you only have as a JPG. We square it up and pack every standard icon size into one ICO.

Yes, if you need a favicon or a Windows icon. Start from a square JPG of at least 256 pixels, with a transparent background if it has one, so every size inside the ICO comes out crisp.

Bear in mind ICO is opens almost everywhere: it works in browsers (as a favicon) and Windows.

JPG is a lossy photo format that trades detail you can’t see for much smaller files; ICO is a small container that holds the same icon at several sizes. Use ICO for a favicon.ico at the root of a website, or an icon for a Windows program or shortcut.

JPG and ICO compared
Property JPG ICO
Compression Lossy Lossless
Transparency No Yes
Animation No No
Support Opens everywhere Opens almost everywhere
Best for Photographs that need to open anywhere and stay reasonably small Website favicons and Windows shortcuts
Introduced 1992 1985

How to convert JPG to ICO

  1. 01

    Add your JPG

    Drop your JPG image onto the box, or click to choose it. It is read from your disk and stays there.

  2. 02

    Check the settings

    The output is already set to ICO. Change the quality if you want to; the defaults suit most files.

  3. 03

    Save the ICO

    Press convert and save the ICO. Several files come back together as a ZIP.

What changes when JPG becomes ICO

ICO can’t add back what JPG removed

The JPG was compressed when it was saved, and that detail is gone. ICO records exactly what the JPG contains now, compression marks included, and keeps it that way however often you edit and re-save.

One ICO, every size

The ICO holds 16, 24, 32, 48, 64, 128 and 256 pixel versions, each scaled from your JPG and centered on a transparent square. Browsers and Windows pick the size they need.

Expect a larger file

ICO generally takes more room than JPG. If the file has to fit an upload limit, check the size once it’s converted. JPG: A 12-megapixel phone photo is usually 2–5 MB. ICO: A full favicon with every size is usually under 100 KB.

This page is put together from our notes on each format, choosing only what is true of JPG and ICO, so every pairing states the same facts the same way. How these pages are made.

Why it doesn’t upload

Changing a picture’s format is work your browser already knows how to do. Sending your photos to a server first only adds waiting and risk, so nothing is sent.

How to check for yourself

Worth knowing

  • About the JPG. Re-saving a JPG again and again degrades it, because each save compresses the already compressed version. Keep an original and export to JPG once, at the end.
  • About the ICO. Renaming a PNG to favicon.ico works in some browsers and silently fails in others. A real ICO holds several sizes so each place picks the right one.
  • DDS, PSD, EXR, XWD and JPEG 2000 are read by the FFmpeg engine, a one-time 31 MB download.

Questions

Will converting JPG to ICO lose quality?

No further quality is lost: ICO keeps exactly what is in the JPG. It can’t undo compression the JPG already has.

Will the ICO be smaller than the JPG?

Expect a larger file. ICO generally takes more room than JPG. If the file has to fit an upload limit, check the size once it’s converted. JPG: A 12-megapixel phone photo is usually 2–5 MB. ICO: A full favicon with every size is usually under 100 KB.

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