Image Compressor
Compress JPG, PNG, and WebP images online for free. Adjustable quality, batch support, transparency preserved. Images processed in your browser, never uploaded.
拖拽图片到这里,或点击选择
支持 JPG、PNG、WebP · 单次最多 20 张 · 全部本地处理
Frequently Asked Questions
Does compressing images reduce quality?
Both lossy and lossless modes are supported. Lossy compression (usually 70-85 quality) can shrink files 50-80% with almost no visible difference; lossless only optimizes encoding and preserves every pixel, but with lower compression ratios. Defaults are tuned for most cases.
How many images can I compress at once?
No upper limit — everything runs locally in your browser, constrained only by device memory. 50-100 images under 10MB each typically run smoothly; split into batches for large volumes.
Are my images uploaded to a server?
No. All processing happens inside your browser. The compressed files download straight to your device — aipzz and any third party cannot see your images.
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