Convert images to JPG, PNG or WebP

PNG output is lossless: it stores exactly the pixels it is given. JPEG is lossy, and so is WebP below 100% quality: at 85% the difference is hard to see for photos; lower it for smaller files. At 100%, Chrome and Edge write WebP without loss; other browsers may still compress it. With resizing off, pixel dimensions do not change. With Fit each image inside a maximum size ticked, a picture larger than the maximum is scaled down first; that resampling removes detail in every output format, PNG included, and a picture that already fits keeps its dimensions. Converting a JPEG to PNG does not bring back detail the JPEG already lost.

PNG and WebP keep transparency. JPEG cannot, so transparent areas are filled with white or black, your choice.

No. The new file is built from the pixels only, so camera details, GPS location and other metadata are not copied. Photos taken sideways are rotated the way your browser displays them before conversion.

Images wider or taller than 16,384 pixels are more than this tool takes; they are refused with a message as soon as you add them, read from the file header without decoding. In a batch, a file that fails to convert is skipped and named, and the others still download. Animated GIFs and WebPs are converted from their first frame only. WebP itself holds at most 16,383 pixels on a side: a picture 16,384 pixels wide or tall is skipped as WebP, with a message, and converts as PNG or JPEG, or as WebP once fitted inside a smaller size. WebP output is not available in browsers that cannot write WebP (older Safari); the option is then disabled.

Yes. Tick Fit each image inside a maximum size, then enter the maximum width and height. Proportions are kept and smaller pictures are not enlarged. The picture is scaled down on your device and then saved once. While the picture is still at least twice as wide and twice as tall as the size it will have, it is first halved, as often as that holds; one last step then brings it to the exact size. Every step uses the browser's high-quality smoothing. The file is then encoded a single time: with the quality you chose for JPEG or WebP, or as PNG, which adds no loss to the scaled pixels. Each download lists its dimensions and size.

Every result adds _converted before the new extension: photo.png becomes photo_converted.jpg when converted to JPEG, or photo_converted.png when kept as PNG. When inputs share a name, their source formats are included: picture_from_png_converted.jpg and picture_from_webp_converted.jpg. Any remaining collision gets _2, _3 and so on.

No. The page loads a small script into your browser and every operation runs on your device. You can check this yourself in the browser's network panel: after the page has loaded there are no upload requests. Closing the tab discards the file.

No. These basic tools are free and store nothing on our servers. The only limits are the tool's own: images up to 16384 pixels on a side. Within them, the practical limit is your device's memory.

Nothing you open or type. While the tab is open, the tool pages keep a short list of the steps taken in it, in the tab's session storage: the step (page opened, started, succeeded, first success, used again or failed), the tool's name, the time, how many files were used and, for a failure, an error code; never a file name, the contents of a file or your text. It holds at most the latest 200 steps, and the browser deletes it when the tab closes. The page never sends it. Where a Report a problem button is shown, you can attach the last 20 steps to your report; nothing is attached unless you tick that box. In local storage the page keeps only choices you made: a Light or Dark theme until you choose System again, the language you picked with the EN / 中文 switch if it differs from your browser's language, and this tool in your recently used list if you switched that list on at the tools page.