Shrink JPG, PNG and WebP file size locally - without visible quality loss.
Running locally on your device ...
0%
Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
Large image files slow down websites, blow past email-attachment limits and fill up storage. Moderate compression often cuts file size by 60-80% with no visible difference.
This tool re-encodes each image locally in its original format - a PNG stays a PNG, a WebP stays a WebP, a JPG stays a JPG. If the file would not get smaller, you automatically keep the original. Optionally cap the maximum width. Everything runs in the browser - no upload.
| Input formats | JPG, JPEG, PNG, WEBP |
|---|---|
| Output format | JPG |
| Batch processing | Yes |
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: The format is preserved; transparency in PNG and WebP is kept. Metadata such as GPS is removed during re-encoding - image orientation stays correct. Photographic PNGs often shrink noticeably only as WebP or JPG.
No, compression runs entirely locally in the browser.
The “Balanced” preset fits most photos. “Smallest file” saves the most, “Best quality” keeps fine detail.
Yes. A PNG stays a PNG with its transparency, WebP stays WebP, JPG stays JPG - nothing is silently converted.
By default yes. Optionally set a maximum width; only larger images are then scaled down proportionally.
No. If re-encoding would produce more bytes, you automatically keep the original (“already optimized”).