图片压缩器
压缩 PNG、JPG 和 WebP 图片。
Drop an image to compress it. Adjust the quality slider to balance file size and detail. Everything runs locally in your browser — your images are never uploaded.
工作原理
- 1 Drop a PNG, JPG or WebP image, or click to choose one.
- 2 Adjust the quality slider.
- 3 Click Compress and compare the original and compressed size.
- 4 Download the smaller image.
常见用例
- Speed up page loads and Core Web Vitals.
- Fit images under upload size limits.
- Reduce bandwidth for image-heavy pages.
- Shrink photos before emailing or sharing.
常见问题
Are my images uploaded to a server?
No. Everything runs locally in your browser — your images never leave your device and nothing is stored.
Does it work on PNG?
Yes, though PNG is lossless — the quality slider mainly affects JPG and WebP, which can shrink the most.
Will quality drop?
Only as much as you choose. Higher quality keeps more detail; lower quality makes smaller files.
Is it really free?
Yes — free, with no signup, no watermark and no limits.