Convert JPG to WebP on your device
JPG to WebP is the single easiest page-speed win for most websites: the same photos at 25 to 35 percent less weight, with every current browser able to display them. Drop a folder of JPGs here, set a quality and an optional maximum width, and download a zip.
Turn off your Wi-Fi. It still works.The encode runs in your browser with the same libwebp Google uses, so results match what you would get from a build tool, without installing anything.
Why convert JPG to WebP
- Batch processing with one zip download, fine for a whole media library.
- Resize in the same pass so you ship images at the size the layout needs.
- No upload means no queue, no quota and no size cap from a server.
How to convert JPG to WebP without uploading
- Drop JPG files onto the box above, or click it to pick them. On a phone you can choose straight from your photos.
- Adjust quality if you want. The default is tuned to be visually identical to the original.
- Download. Each file gets a button as it finishes; with more than one file you can download a single zip. The WebP files are written entirely on your device.
About JPG (JPEG)
JPG is the format everything opens. It has been the default for photographs since the early 1990s, every device, browser, upload form and photo printer accepts it, and at a sensible quality setting the compression is invisible for photos.
JPG cannot store transparency, and re-saving a JPG many times slowly degrades it.
About WebP
WebP is Google’s web image format. It makes files 25 to 35 percent smaller than JPG at the same visual quality, supports transparency and animation, and is supported by every current browser, which is why so many websites now serve it.
Outside the browser WebP is still awkward: older versions of Windows Photo Viewer, many desktop editors, print shops and upload forms do not accept it.
Questions
What quality should I use for WebP?
Quality 80 is the usual sweet spot: visually identical to the JPG for photos at a large saving. Use 85 to 90 for product shots with fine detail.
Should I convert to WebP or AVIF?
WebP for the broadest support and fast encoding; AVIF for maximum savings on large hero images, ideally served with a WebP fallback.
Does converting JPG to WebP keep EXIF data?
No. Metadata is stripped, which is usually what you want for web images (smaller, and no GPS leak).
Related tools
- PNG to WebPNo upload, batch, freePNG→WebP
- JPG to AVIFNo upload, batch, freeJPG→AVIF
- Compress imagesAny format, smaller filesanysmaller
- Resize imagesAny format, fit to a sizeanyresized
OfflinePix never uploads your images. Decoding and encoding run in your browser with WebAssembly; the site works with the network off, and the only thing we count is page views. How it works.