JPG to ICO Converter

A JPG to ICO converter resamples a photograph into square icon images and packs them into a single .ico file. The .ico is a container: it holds one image per size you tick, with a short directory at the front listing what is inside, and whatever draws the icon reads that directory and takes the entry nearest the size it needs. This page writes 16, 32, 48 and 256 pixel squares, all ticked to begin with.

It is worth being blunt about the starting material. A 16 px icon is 256 pixels in total, roughly a fifth of the width of a thumbnail, and a photograph arrives there as a small smear of average colours. Faces, text on a sign, product details and background scenery all disappear at that scale, and no converter setting brings them back. Photographs that do survive share one property: a single large shape in strong contrast against everything else. A dark silhouette on a bright sky works. A group photo does not.

The practical answer is to crop before you convert rather than after. Pick the one element the icon is about, crop tight around it so it fills most of the frame, and make that crop square. Two things follow. The icon reads at the small sizes because the subject is large in the frame, and the square crop avoids the stretch described below.

A JPG also brings no transparency with it. Every pixel in the file is opaque, including whatever was behind your subject, so each icon entry is a filled square of image with hard corners. There is no way to recover a shape from a JPG, and the converter does not attempt to cut one out. If you want an icon with a transparent background, the source has to be a PNG that already carries an alpha channel.

Non-square photographs are stretched to fill each square rather than cropped, and the page tells you when that happened. Drop a 4032x3024 phone photo and it converts straight away, with the note under its row reading "The image was 4032x3024, so it was stretched to squares of 16, 32, 48, 256 px." Everything in the frame is squeezed horizontally, which on a face is immediately obvious. Crop the same photo to 1024x1024 and add the cropped copy, and the note changes to "Contains 16, 32, 48, 256 px icons.", which is how you know the proportions were left alone. The file saves under the original name with a .ico extension, so photo.jpg becomes photo.ico.

Everything runs client-side: your browser decodes the JPG, draws it at each ticked size on a canvas and assembles the .ico in memory, with no upload at any point. There is no quality slider on this page, because the squares inside an .ico are stored PNG-compressed and PNG compression is lossless, so the only loss is the one already baked into the JPG you started from. Drop several photos and each is converted with the same size selection, then Download All (n images) saves them together as converted-ico.zip. Images above 100 megapixels are refused with a message, empty files are refused, file size in bytes is not capped, and the tool is free, no signup, with a daily limit on conversions.

• The photo is decoded, resized and packed into the .ico client-side, in this browser tab. It is not uploaded.
• EXIF data from a phone or camera, including GPS location and the capture date, is not copied into the icon, because each entry is drawn from the decoded pixels.
• The daily usage check sends a file count, the combined size in bytes and the target format, never the file names or the photo itself.
• Icons are kept in the tab's memory until you remove them, press Clear All or close the page. Nothing is stored on a server.
• Once the page has loaded, conversion keeps working with the network disconnected.