Convert JPG to ICO
Need a favicon.ico or Windows icon from a JPG? Generate the ICO right here — no upload, no watermark, no email wall.
JPG vs ICO: what changes
Browsers and Windows both use the ICO format for favicons and shortcut icons. ICO is a container that holds an icon at the size the system needs, which is why a website’s favicon.ico and a desktop app’s icon both rely on it.
If your source art is a JPG — a logo export or a photo — this converter turns it into a ready-to-use ICO locally. For the sharpest result, start from a square image (for example 256×256). One thing to keep in mind: JPG can’t store transparency, so the icon will have a solid background; if you need a transparent favicon, convert from a PNG instead.
How to convert JPG to ICO
- Open the converterOpen FavGrab from the button above.
- Drop a square JPGAdd your logo or image — a square JPG such as 256×256 gives the crispest icon.
- Select ICOChoose ICO as the output format.
- Convert & shipConvert, download the .ico, and place it at your site root as favicon.ico.
JPG vs ICO at a glance
JPG
- Compression
- Lossy — adjustable quality
- Transparency
- No (flattens onto a background)
- Compatibility
- Universal — opens literally everywhere
- Best for
- Photographs, email attachments, uploads that must just work
ICO
- Format
- Icon container — can hold several sizes
- Transparency
- Yes
- Compatibility
- Browsers (favicon.ico) and Windows icons
- Best for
- favicon.ico and desktop application icons
When to convert JPG to ICO
- Generating a favicon.ico from a logo saved as JPG
- Creating a Windows application or shortcut icon
- Producing a quick icon from a photo
- Replacing a placeholder favicon with your own mark
Why convert in your browser
Nothing is uploaded
Every byte is decoded and re-encoded on your own machine using Canvas and WebAssembly. Your images never touch a server, so there is no upload bar, no queue, and no copy of your file sitting in someone else’s bucket.
Works offline
After the first load the converter is cached. Open it on a plane, on hotel Wi-Fi, or with the cable unplugged and it still runs at your CPU’s full speed.
Frequently asked questions
What size JPG should I use for a favicon?
A square JPG of 256×256 (or at least 64×64) works well. Starting square avoids stretching, and a larger source stays sharp when the browser scales it down to 16×16 or 32×32.
Can I get a transparent favicon from a JPG?
No — JPG can’t store transparency, so the icon keeps a solid background. For a transparent favicon, start from a PNG and use the PNG to ICO converter instead.
Where do I put the favicon.ico?
Place the converted file at the root of your website as favicon.ico. Most browsers request it automatically; you can also reference it with a <link rel="icon"> tag.
Is anything uploaded to make the ICO?
No. The ICO is built in your browser from your JPG — nothing is sent to a server.
Related converters
Build your favicon now
Convert a JPG into a ready-to-ship ICO — locally and free.
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