Know your formats
Supported formats and limitations
Accepted formats are checked from file contents. Native browser codec support is required. Only still images are supported.
- Input formats
- JPGJPEG
- Output formats
- WEBP
- Re-encoding a lossy JPEG can add artifacts, and a smaller output is not guaranteed.
- WebP encoding depends on browser support. Original metadata is not preserved.
The WebP copy retains the JPEG’s decoded dimensions and applies another lossy encode. Try the quality presets and compare the actual size before replacing a photo on a website. Keep the JPEG original for later edits because raising WebP quality cannot restore missing JPEG detail.
Limits: 16 MiB per file, 8192px per edge, 8 megapixels. Batch input is limited to 8 files / 32 MiB, and retained batch outputs to 64 MiB. Metadata is discarded; color profiles and HDR may change.
A local workflow
How to use this converter
Your file contents stay in the browser as you work.
Select a JPEG photograph.
Choose WebP quality.
Inspect the encoded size and download the result.
A little more clarity
Frequently asked questions
Will every WebP be smaller than its JPEG source?
No. Source quality, dimensions, and the encoding settings all affect file size.
Is JPG to WebP available now?
This tool runs locally with JavaScript enabled. Check its supported formats and size limits before converting.