GIF in, JPG out, right here in your browser. Your file is read and re-encoded in this tab, so nothing is uploaded.
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GIF is a palette format built for short animations on the web, and it is limited to 256 colours per frame. JPG is the format every program, phone and printer already opens, which is why so many things ask for it. This page moves a GIF to a JPG in your own browser: the file is read, re-encoded and handed back without being uploaded.
JPG has no alpha channel, so any transparency in the GIF is composited onto white before the file is written.
JPG is a lossy format: the encoder discards detail to make the file smaller, and the quality slider on this page is how you choose how much.
JPG holds a single frame, so an animated GIF converts to its first frame.
Yes, and there is nothing to unlock. The conversion runs in your browser, so there is no account, nothing to pay and no licence key to enter. Every format and every feature on the site is available to everyone.
No. Your file is decoded and re-encoded inside this tab and never uploaded. The ads on this page are served by Google and do see that you are here, but they never see your file. You can check it yourself: open the network panel and search for a request carrying your picture.
No. JPG has no alpha channel. Transparent areas are composited onto white before the file is written, which is why a logo with a transparent background comes out with a white one. Keep the GIF or convert to PNG or WebP if the background has to stay see-through.
Some, and it depends on the picture and the setting. JPG is lossy, so it throws away detail the encoder thinks you cannot see. The quality slider is adjustable from 10 to 100 before you convert, and the queue shows you the resulting file size so you can trade one against the other.
JPG holds one frame, so an animated GIF converts to its first frame. The page says so on the queue row rather than handing you a still image that looks like the animation worked.
Yes. Drop a batch onto the page and every file is converted in the queue, then downloaded together. The queue also shows the size before and after, so you can see what the conversion saved. There is no cap on how many files you convert at once; the only real limit is what your device can hold in memory at the same time.
Convertlab converts images and video in your browser. Everything above runs on your own device, so no file is ever uploaded.