Image converter · runs 100% in your browser
JPG to WebP Converter
Convert JPG images to WebP entirely in your browser. JPG is lossy compression, ideal for photos, no transparency; WebP is modern format with both lossy and lossless modes, smaller than JPG/PNG. The conversion runs locally using the Canvas API — your file is decoded, re-encoded, and offered as a download without ever touching a server.
How to use
- Select one or more JPG files at once, or keep adding files to the queue.
- Click Convert all. Files are processed one at a time in your browser so memory stays bounded.
- A failed file does not stop the rest of the batch; use Retry failed after fixing or replacing it.
- Download each WebP result individually, or download all successful results as a ZIP.
FAQ
Will converting JPG to WebP restore lost detail?
No. JPG is a lossy format, so any compression artifacts in the source will remain in the WebP output. The converter just changes the encoding container — it cannot recover detail that was thrown away when the JPEG was first saved.
Is the JPG to WebP converter free?
Yes. The full converter catalog is free. There is no upgrade tier, no quota, no watermark, and no signup.
Do my files upload to a server?
No. Conversion runs entirely in your browser. Open the Network tab in DevTools while you convert — you will not see your file leaving the page.
Why convert JPG to WebP?
JPG is lossy compression, ideal for photos, no transparency. WebP is modern format with both lossy and lossless modes, smaller than JPG/PNG. Converting between them is useful when the destination platform expects WebP or when you want the trade-offs that WebP offers.
What is the maximum file size?
Whatever your browser can hold in memory. On a modern desktop browser, several hundred megabytes is usually fine; on mobile, expect tighter limits.