Convert a JPG to a single-frame GIF on your own device. Expect a 256-color palette, which shows on photographs and barely shows on flat artwork.
The reason is almost never aesthetic. An old bulletin board, a legacy intranet page, a piece of signage software, or a form field whose accepted-types list ends at .gif will refuse a JPG outright, and someone still needs the picture in there today. This page does that conversion with no editor, no upload, and no account.
JPG exists to store photographs, and photographs are exactly what GIF handles worst. Where a JPG describes millions of shades, a GIF gets 256, so the converter has to choose a palette and approximate everything else. Skies, skin tones, and shadows pick up visible steps between colors. Flat artwork that happens to be saved as JPG — a logo, a scanned line drawing, a chart — usually converts cleanly, because it was never using many colors. If banding appears, that is the format at its limit rather than the tool failing, and the honest fix is to send a JPG or PNG wherever the destination allows one.
The GIF you get holds a single frame; nothing here creates animation, and a batch of JPGs produces a batch of separate GIFs. Size is unpredictable: a flat graphic can shrink, while a detailed photo often ends up larger than the JPG it came from, since JPG compression suits that content far better than palette indexing does. The conversion itself is quick and entirely local — a Web Worker decodes each JPG and writes the GIF in this tab, three at a time, with no upload, no watermark, and no daily limit.
Yes, in one specific way: the image is reduced to 256 colors. Detail and dimensions are untouched, but photographic gradients will show banding.
No. Each JPG becomes one still frame. To make an animation, use the MP4 to GIF tool, which turns a short video clip into a moving GIF.
JPG compresses photographs far more efficiently than an indexed-color GIF can. For photo content, a larger GIF is the normal outcome.
No. The JPG is decoded and the GIF written by your own browser, so the image never leaves your device.