Convert JPG to WebP
Re-encoding JPGs as WebP usually saves 25–35% at the same visual quality — one of the easiest wins for site speed and storage. Batch-convert a whole folder at once and download the results as a ZIP.
Free · No signup · No upload — runs 100% in your browser
How to convert JPG to WebP
- Open the converter and add your JPG files — drag & drop, paste from the clipboard, or pick a whole folder.
- Choose WebP as the output format in the options panel and press Apply.
- Fine-tune quality or resize if you need to — files re-encode instantly.
- Download results individually, as a ZIP, or combined into a PDF.
About the formats
JPG
JPEG is the most universally supported image format in existence — every browser, app, device, and upload form accepts it. It uses lossy compression tuned for photographs. This converter encodes JPEG with MozJPEG, which squeezes out noticeably smaller files than standard encoders at the same visual quality.
WebP
WebP is Google's web-focused format, supported by every modern browser. It typically lands 25–35% smaller than JPEG at comparable quality and also supports transparency, making it the workhorse choice for fast-loading websites.
Frequently asked questions
Are my JPG files uploaded to a server?
No. The conversion runs entirely in your browser using WebAssembly codecs — your files never leave your device. After the first visit the converter even works offline.
Can I convert many files at once?
Yes — add as many files (or whole folders) as you like, convert them in one batch, and download everything as a single ZIP. There are no file-count or size limits.
Will I lose quality converting JPG to WebP?
You stay in control: WebP quality is adjustable in the options panel, and the defaults are tuned to be visually indistinguishable for typical images. You can re-convert with different settings instantly.