Convert JPG to WebP
Convert JPG photos to the modern WebP format and save significant file size at the same visual quality – the easiest lever for faster websites and better PageSpeed scores. Everything runs right in your browser; your photos are never uploaded at any point.
Drop images here
JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, SVG · up to 50 files · 100% on your device
How it works
- 1
Select your JPG photos
Drag up to 50 JPG files into the box above or pick them via the button – product photos or header images for your website, for example.
- 2
Set the quality
WebP is preselected as the target format. Go with “Best quality”, “Balanced” or “Smallest file” – or use the slider under “Advanced” with its live file size estimate.
- 3
Convert & download
Convert all photos in one batch with progress indicators and download the results individually or as a ZIP archive.
Your benefits
No upload – enforced in code
The conversion runs exclusively in the browser on your device. Our Content Security Policy forbids outbound connections at a technical level – not just a promise, but verifiable in the network tab.
Product photos & client material without risk
Because no file leaves your device, there is no third-party processing and no GDPR pitfalls. Even unpublished campaign images or client photos can be converted immediately – no approval process required.
Batch website optimization, free
Up to 50 photos per run, no sign-up and no watermarks. Ideal for shrinking a website's entire media library in a matter of minutes.
Frequently asked questions
How much smaller does a JPG get when converted to WebP?
At comparable visual quality, WebP files are typically 25 to 35 percent smaller than JPG. The live estimate under “Advanced” shows you the expected size before you convert.
How does WebP help with SEO and PageSpeed?
Smaller image files shorten load times and improve Core Web Vitals such as Largest Contentful Paint (LCP) – metrics Google uses for ranking. Google PageSpeed Insights explicitly recommends serving images in modern formats like WebP.
Is there a visible quality difference between JPG and WebP?
At the “Best quality” and “Balanced” presets, no difference is visible to the naked eye. WebP compresses more efficiently than JPG and achieves the same visual quality with less storage.
Can all browsers display WebP images?
Yes. Chrome, Firefox, Safari and Edge have fully supported WebP for years. Only outdated programs and very old browser versions cannot display WebP.
Are my photos sent to a server for conversion?
No. The conversion happens 100 percent locally in your browser using JavaScript and WebAssembly. There is no connection to any processing server.
Can I convert internal or unpublished imagery as well?
Yes, safely. Since all processing stays on your device, neither we nor any third party gains access – suitable even for campaign visuals before launch or confidential project photos.