Online converter
Convert JPG to WebP Online
Upload your JPG file, convert to WebP on our secure servers, and download the result in seconds. Works on Windows, Mac, and mobile browsers.
- HTTPS encrypted transfer
- Files deleted after 30 minutes
- No signup required
How it works
- 01
Upload
Drop your file or browse from your device. We support drag-and-drop.
- 02
Convert
Pick the output format and start conversion. Progress updates in real time.
- 03
Download
Save your converted file instantly. Auto-deleted after 30 minutes for privacy.
Frequently asked questions
- How do I convert JPG to WebP?
- Upload your JPG file using the converter above, confirm WebP as the output format, and click Convert. Download your WebP file when processing completes — usually within a minute for typical file sizes.
- Is JPG to WebP conversion free?
- Yes. LunaConvert offers free conversion with a 50 MB file limit and 30-minute file retention. No account is required for the local MVP.
- Are my files kept private?
- Files are transferred over HTTPS, processed on isolated workers, and automatically deleted after 30 minutes. We do not use your files for training or share them with third parties.
- What is the maximum file size?
- Free tier supports files up to 50 MB. Larger files and extended retention will be available with paid plans in a future release.
- Why did my conversion fail?
- Common causes include corrupted JPG files, unsupported codecs inside the container, or exceeding size limits. Try re-exporting the source file or use a shorter clip, then convert again.