Convert JPEG to WebP and cut file size by 25–35 %- free, browser-based, no upload.
Open WebP ConverterJPEG and JPG are the same format - JPEG is the original name, JPG became common on Windows where extensions were limited to 3 characters. Both convert to WebP identically. WebP delivers 25–35 % better compression than JPEG at equivalent quality, making it the recommended format for all web images as of 2024.
At quality 80, WebP matches JPEG quality at 25–35 % smaller file size. omnikitbolt lets you dial quality from 1 to 100 so you can find the exact balance for your use case.
| Format | File Size | Quality | Compatibility | Use Case |
|---|---|---|---|---|
| JPEG / JPG | Small–Medium | High (lossy) | Universal | Photos, web images, email, print |
| WebP | Smallest | High (lossy or lossless) | All modern browsers | Web performance, LCP optimization |
| PNG | Large | Lossless | Universal | Graphics, logos, design assets |
| AVIF | Smallest | Excellent | Modern browsers only | Next-gen web images |
Open the JPEG 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 JPEG 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.
What is the difference between JPEG and JPG?
There is no difference. JPEG and JPG refer to the exact same format. JPG came from Windows's old 3-character extension limit. Both file types are handled identically by every image tool.
Does converting JPEG to WebP lose quality?
Converting from JPEG to WebP re-encodes the image, which can introduce a small quality loss. At quality 80–90 the difference is invisible in real photos. Set quality to 95 if you want to minimise generation loss.
Is WebP better than JPEG for email?
No- email clients like Outlook and older Gmail versions do not render WebP. Keep JPEG for email attachments. Use WebP for images served on the web through a browser.
How do I serve WebP on my website while keeping JPEG as a fallback?
Use the HTML `<picture>` element: provide a WebP `<source>` first and a JPEG `<img>` fallback. Next.js Image component handles this automatically.
Ready to convert? It takes less than 10 seconds.
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