不会。所有压缩都使用 WebAssembly 在浏览器中进行。您的图像永远不会离开您的设备。

支持 JPG、PNG 和 WebP 格式。压缩输出保持与原始格式相同的格式。

通常减少范围为 40-80%，具体取决于图像内容和所选的质量级别。包含大量细节的照片压缩程度更高。

在较高质量设置下，差异几乎难以察觉。您可以调整质量滑块以找到满足您需求的最佳平衡。

Yes, upload several images and each will be compressed independently with the same quality settings. Download them all at once.

Yes. The tool runs entirely in your browser, so it works on any device — including smartphones and tablets — with no app to install.

For web use, 70-80% quality reduces file size by 60-80% with minimal visible difference. For print, use 90%+ to preserve fine detail.

EXIF metadata such as camera info, GPS, and date is stripped during compression, which helps reduce file size and protects your privacy.