All tools
Compress Image
Shrink a JPG, PNG or WebP to a smaller file — by quality or a target size.
Select an image
Click to choose, or drop a file here
Related PDF tools
Resize ImageScale an image to a percentage or an exact pixel width, right in your browser.JPG to WebPConvert a JPG to the smaller, modern WebP format.PNG to WebPConvert a PNG to WebP for a much smaller file with transparency intact.HEIC to JPGConvert iPhone HEIC/HEIF photos to standard JPG — decoded on your device.
Compress Image — frequently asked questions
Does compressing an image lose quality?+
JPEG and WebP compression is lossy, so there is some quality loss — but at 60–80% quality it is usually invisible while the file shrinks a lot. PNG stays lossless.
Can I compress to an exact file size?+
Yes. Enter a target in KB and the tool binary-searches the quality (and downscales if needed) to land at or just under it.
Is my image uploaded?+
No. The image is decoded and re-encoded with a <canvas> in your browser. It never leaves your device.
What formats are supported?+
JPG, PNG, WebP, plus HEIC/HEIF and TIFF as input.
你们会把我的文件上传到服务器吗？+
不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。
有文件大小限制吗？+
我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。
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