Our take: The strongest compression we measured on the same image (−91%). Files are uploaded and kept for 2 hours. It squeezes hard, so check the result before using it for print.
- ✓ −91% compression — tested
- ✓ Up to 10 MB without sign-up — tested
- Lossy · Glossy · Lossless
- ! Uploads to server — tested
- ? China access — not tested yet
Our test
Tested 28 Sep 2026 · Chrome desktop · synthetic test image 3000×2000 JPG, 3.88 MB (same image used for Squoosh, TinyPNG and iLoveIMG)
How we checked privacy: The image was sent to ShortPixel’s server (shortpixel.com/file-upload) and the result was served from api.shortpixel.com. The official FAQ says optimized images are kept on its servers for 2 hours.
Data sheet
Every row shows how we know it
| Free limit | Up to 10 MB per file without an account Tested |
|---|---|
| Sign-up | Not required Tested |
| Watermark | None Tested |
| Compression modes | Lossy (default) · Glossy · Lossless Tested |
| File processing | Uploaded to ShortPixel servers Tested |
| File retention | Optimized images kept 2 hours Official |
| Extras | WebP/AVIF conversion, background removal Tested |
| Access from China | — Not tested |
When to use it
Squeezing photos as small as possible for website speed, or converting them to WebP/AVIF.
Before you use it
Files are uploaded, so use an on-device tool like Squoosh for private photos. The default Lossy mode is aggressive; pick Glossy or Lossless for print.
How to use it
- Open ShortPixel’s online compressor (no sign-up).
- Choose Lossy, Glossy or Lossless and upload your images.
- Download the result once the savings are shown.
Alternatives
Last verified 28 Sep 2026 · Found something outdated? Tell us. · Official FAQ