JPG to ICO
Turn a JPG logo into a complete favicon set — .ico, every PNG size, manifest and HTML — without uploading it anywhere.
Favicon package
- favicon.ico16 + 32 + 48 in one file
- favicon-16x16.pngBrowser tab
- favicon-32x32.pngTaskbar / tab @2x
- favicon-48x48.pngWindows shortcut
- favicon-64x64.pngHiDPI tab
- favicon-128x128.pngChrome Web Store
- apple-touch-icon.pngApple touch icon
- favicon-192x192.pngAndroid / PWA
- favicon-512x512.pngPWA splash
- site.webmanifestPWA / Android
What this tool does
It turns a JPG image into a favicon package: a multi-size favicon.ico plus the PNG sizes, web manifest and HTML snippet that browsers, Android and iOS look for.
About JPG
JPEG (files end in .jpg or .jpeg — they are the same thing) is the 1992 lossy photo format that every camera, phone and website understands. It throws away detail the eye is bad at seeing, which is why a photo can be 10× smaller than as PNG while looking identical at normal viewing sizes. It is good for photographs and anything photo-like, email attachments, marketplaces and forms that demand .jpg, and situations where compatibility matters more than anything; less good for text, line art, screenshots and logos (the compression smears sharp edges into visible "ringing"), and anything that needs transparency — JPEG has none. Universal, and the safest choice when a form, portal or older program insists on a specific format.
About ICO
ICO is the Windows icon container: one file holding the same image at several sizes (16, 32, 48 px…), so the system can pick the right one. It is what browsers still look for at /favicon.ico, and what Windows uses for program and shortcut icons. It is good for favicons and Windows application icons — nothing else; less good for any other use; it is a container, not a general image format. Browsers and Windows; most image editors can open but not all can save it.
What changes going from JPG to ICO
- Metadata: EXIF (camera, date, GPS) is not carried over — the browser decodes pixels, not tags. That is a privacy plus for sharing and a minus if you rely on dates in the file.
JPEG to icon
Works, with two caveats: JPEG has no transparency, so the icon will have a square background (fine for photos, not for logos — convert the logo to PNG with transparency first, or run it through the background remover), and JPEG noise shows at 16 px. You get a multi-size .ico plus PNGs in a ZIP.
How to make a favicon from JPG
- Drop the JPG file on the panel above or click to choose it.
- Check the preview of each size; non-square images are padded, not stretched.
- Download. The file is named after the original with a
.icoextension (inside a ZIP with the PNGs and HTML).
Frequently asked questions
Is my JPG file uploaded?
No. The page is static and has no upload endpoint; your browser does the work on your own device and the result is saved straight back to your disk. The site's Content-Security-Policy only allows it to talk to its own origin, so it cannot send your file anywhere even by accident. Load the page, disconnect from the internet, and it still works.
Does JPG to ICO lose quality?
The icon sizes are rendered from your image with high-quality downsampling; at 16 px any image loses detail, which is why simple, bold logos make the best favicons.
Will transparency survive?
JPG has no transparency to begin with, so there is nothing to lose; the ICO output is fully opaque, exactly like the source.
Is it free? Any limits or watermark?
Free, no account, no watermark, no daily quota. Because nothing runs on our servers there is nothing to meter. The only limits are your device's memory — anything up to roughly 50 megapixels is fine on a modern phone or laptop.
Can I do several files at once?
One file at a time at the moment — drop the next one as soon as you have downloaded the first. Batch processing with a ZIP in and out is planned.
Does it work on my phone?
Yes — iPhone, iPad and Android browsers all run it. Large files take a few seconds longer on a phone than on a laptop.