JPG to WebP Converter
Convert JPG to WebP online and cut image weight by roughly a quarter to a third at matching quality. Batch up to 15 files, all processed locally in your browser.
Drag & drop images here
or click to select up to 15 JPG, PNG, WebP, AVIF, GIF, BMP, or ICO files (max 5 MB each)
About JPG to WebP Converter
WebP is the format PageSpeed Insights nags you about. For the same visual quality it usually encodes a photograph 25–35% smaller than JPG, which lands directly on your Largest Contentful Paint score. Every browser released in the last several years reads it natively, so for web delivery there is very little reason left to ship JPG.
Drop up to 15 JPG or JPEG files (5MB each) and click Convert — output is already set to WebP. Compare the before and after byte counts in the results list; that difference is what your visitors stop downloading. Save each file or take the whole batch as a ZIP.
You are re-encoding something that was already lossy, so this is a second generation of compression. At the quality level used here the difference is invisible in normal viewing, but if the original JPG was already heavily compressed — a photo forwarded through chat apps a few times — inspect flat areas like skies before you ship it. Also worth knowing: WebP supports transparency, so unlike JPG it is a safe target when you later need alpha. Keep the JPG originals as your archive and treat WebP as the delivery copy.
Need another format? Open the full Image Converter, or try the Image Resizer and Image to Base64 tools.
Frequently Asked Questions
How much smaller is WebP than JPG?
WebP typically produces files roughly 25–35% smaller than JPG at a visually similar quality level, which is why most sites use it for faster page loads.
Do all browsers support WebP images?
Yes — every current major browser (Chrome, Firefox, Safari, Edge) supports WebP in <img> tags. Only very old browser versions or some legacy image-processing software may not.
Why is my WebP file not much smaller than the original JPG?
This tool converts at maximum WebP quality to preserve detail. For a specifically smaller file size with manual quality control, use the Image Resizer & Compressor after converting.
Are my photos uploaded to a server?
No. Conversion runs entirely in your browser.