Convert JPG to WebP — Free Online, No Upload
Drop a JPG (or a whole batch) into PicBrewery and get a WebP version generated right in your browser — no upload, no watermark, no account. Files stay on your device; the conversion runs entirely in WebAssembly.
Need context? See the full JPEG vs WebP vs AVIF comparison on the formats hub.
How to convert JPG to WebP
- Open PicBrewery — the image converter on this site.
- Drag and drop your JPG file (or several) into the upload area. Clicking the drop zone or pasting with Ctrl/Cmd+V also works.
- PicBrewery decodes the JPG and re-encodes it into JPEG, PNG, WebP and AVIF in parallel. Wait a second or two for the WebP column to fill in.
- Click the download icon on the WebP cell. For multiple files use Download all as ZIP to grab the WebP versions (or whichever format came out smallest per file).
Why convert JPG to WebP?
WebP was designed by Google specifically for web delivery. At matching perceived quality, lossy WebP photographs are typically 25–35% smaller than the same image encoded as MozJPEG. That translates directly into faster page loads, lower CDN bills and better Core Web Vitals scores — Largest Contentful Paint (LCP) in particular, which is dominated by hero images on most content pages.
WebP decodes about as fast as JPEG on modern hardware, adds 8-bit alpha support (handy if you later need a transparent background) and, unlike many "next-gen" formats, is already supported in every evergreen browser since Safari 14 back in 2020. For photo-heavy pages the switch is nearly free: smaller payload, same look.
Expected file-size savings
Typical camera photos at JPG quality 85 re-encode to WebP quality 75 at 25–35% smaller size with no visible loss. Low-detail subjects (skies, studio shots, portraits) tend toward the high end of that range; busy textures (foliage, fabric, grain) toward the low end. For the exact numbers on your images just drop them into PicBrewery — the results row reports byte size for every output format side by side.
Browser support for WebP
WebP decode is available where it matters: Chrome 32+ (2014), Firefox
65+ (2019), Edge 18+, Safari 14+ on macOS Big Sur and iOS 14 (2020),
plus every modern Android browser. If you still need to support IE 11
or Safari 13 and older, serve WebP inside a
<picture> element with a JPG fallback — legacy
browsers skip the WebP source and render the JPG instead. Full
per-browser support details live on
/formats/#webp.
Frequently asked questions
Does converting JPG to WebP lose quality?
Lossy WebP is a lossy codec just like JPG. At WebP quality 75–80 the result is visually indistinguishable from a JPG at quality 85, while being 25–35% smaller. PicBrewery defaults to lossy WebP at quality 75 and exposes a quality slider under Advanced settings; switching to lossless WebP is possible but rarely makes sense for photographs.
Is WebP always smaller than JPG?
For photographs at matching perceived quality, WebP is almost always smaller than JPG. For thumbnails under about 10 KB the WebP container overhead can make the two break even. Drop your file into PicBrewery to see the exact byte counts side by side.
Will my JPG's EXIF data survive?
No. To keep files small, PicBrewery strips EXIF, ICC and XMP metadata while re-encoding. If you need GPS, camera or copyright tags preserved, keep the source JPG alongside the WebP output.
Can I batch-convert many JPGs at once?
Yes. PicBrewery accepts up to 20 files per batch, 20 MB each, with 2 concurrent encodes. Drop the whole folder in, wait for the results table to fill up, then use Download all as ZIP to grab the WebP versions (or whichever format came out smallest for each source).
Which browsers decode WebP?
Chrome 32+ (2014), Firefox 65+ (2019), Edge 18+, Safari 14+
(2020 — macOS Big Sur and iOS 14), plus every modern Android
browser. For IE 11 or Safari 13 and older, serve WebP inside a
<picture> element with a JPG fallback so
legacy browsers still render an image.
Convert JPG to WebP now
Drop your JPGs into PicBrewery and download the WebP versions in seconds. 100% client-side — nothing leaves your browser.