Convert many images at once to WebP, AVIF, JPEG or PNG with a quality slider, compare file sizes, and download them singly or as a ZIP.
Pick a target format (WebP, JPEG, PNG or AVIF) and a quality level from 1 to 100, then drop in one or more images. Each file is redrawn on a canvas and re-encoded in your browser, so nothing leaves your device. Results appear as cards showing the new file name, the original and new sizes, and how much smaller the file became.
Download files one by one or grab them all in a single ZIP archive. Common uses include turning JPEG or PNG photos into WebP for faster web pages, shrinking images before upload, or converting a folder of mixed formats to one type. Image dimensions are kept as-is; the quality setting affects JPEG, WebP and AVIF output.
AVIF encoding depends on your browser. If it lacks an AVIF encoder, the browser may produce a different format, so check the result.
No. Conversion uses the canvas in your browser, and the ZIP is built locally.
No. Images keep their original width and height; use the resize tool first if you need smaller dimensions.
Only the first frame is converted, because the canvas draws a single still image.