Convert JPG to WebP and cut file size by 25–35 %- free, instant, no upload.
Open WebP ConverterJPG is a great format but WebP goes further. Google's WebP codec delivers 25–35 % smaller files than JPG at equivalent visual quality. For e-commerce sites, blogs, and portfolios with large photo galleries, switching to WebP directly improves Largest Contentful Paint (LCP)- the Core Web Vitals metric tied to search rankings.
At quality 75–80, WebP matches JPG quality at 25–35 % smaller file size. The difference is especially noticeable on photos with smooth gradients and detailed textures.
| Format | File Size | Quality | Compatibility | Use Case |
|---|---|---|---|---|
| JPG | Small–Medium | High (lossy) | Universal | Photos, web images, email |
| WebP | Smallest | High (lossy or lossless) | All modern browsers | Web performance, Core Web Vitals |
| PNG | Large | Lossless | Universal | Graphics, editing source files |
| AVIF | Smallest | Excellent | Modern browsers only | Next-gen web images |
Open the JPG to WebP converter
Click the button above or go directly to /tools/webp. No signup required- the tool is free and works instantly in your browser.
Drop your files
Drag and drop your JPG files onto the upload area, or click to browse. You can convert up to 20 files at once on the free plan (500 on Pro).
Download your WebP files
Click Download on each file or use Download All as ZIP to save everything at once. All processing happens in your browser- nothing is uploaded to a server.
Complete privacy
Your files never leave your device. All conversion happens inside your browser using the Canvas API and WebAssembly.
Instant results
No upload, no queue, no waiting for a server. Conversion starts the moment you drop your files.
True batch processing
Convert up to 20 files at once on free (500 on Pro) and download them all as a ZIP. No signup required.
Always free
Core conversion tools are free forever. No watermarks, no file size caps on common formats, no account required.
Does converting JPG to WebP lose quality?
Converting from one lossy format to another always involves a small quality loss because the image is re-encoded. At quality 80 the artefacts are invisible in normal photos. For maximum fidelity set quality to 90–95.
How much smaller will my WebP file be?
On average, WebP files are 25–35 % smaller than equivalent JPG files. The exact saving depends on image content- photos with fine detail and smooth skies benefit most.
Will Google rank my page higher if I use WebP?
WebP does not directly affect ranking, but smaller images improve page speed, which is a confirmed Google ranking signal. PageSpeed Insights explicitly recommends serving images in next-gen formats like WebP.
Can I batch convert hundreds of JPGs to WebP?
Yes. omnikitbolt processes all your files in the browser in parallel. Drop up to 20 JPGs at once on the free plan (500 on Pro) and download all WebP files as a ZIP.
Ready to convert? It takes less than 10 seconds.
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