在线压缩图片
在线压缩 JPG/PNG/WebP 图片，通过可调质量减小文件大小。免费、无需上传、在浏览器中。
Drop 图片 here or 浏览文件
What is an 图片 compressor?
An 图片 compressor shrinks the file size of a picture so it loads faster, uploads quicker, and takes up less storage. The trade-off is controlled by quality: a lower quality setting discards more fine detail but produces a much smaller file, while a higher setting keeps the 图片 looking nearly identical to the original. A good rule of thumb is to lower quality step by step until the 图片 still looks great — most photos look fine at 60–80% quality.
This free online 图片 compressor works on JPG, PNG, and WebP files and lets you pick the exact quality with a simple slider. It runs entirely in your browser, so your photos are never uploaded to a server — which makes it safe for private or sensitive 图片. Whether you need smaller 图片 for a website, an email attachment, or a social post, you can reduce 图片 file size in seconds, without installing anything.
使用方法 use the 图片 compressor
- Drop one or more 图片 onto the box above, or click browse to select files.
- Drag the quality slider until the preview size looks right — lower quality means a smaller file.
- Click 压缩 and download each optimized 图片, with the old and new sizes shown side by side.
Frequently asked questions
How much can I compress an 图片?
Reductions of 50–80% are typical for photos, depending on the source 图片 and the quality you choose. The results list shows the exact before and after size for every file.
Does compressing reduce 图片 quality?
Lower quality settings create smaller files but discard some detail, so very low values can soften an 图片. The slider is a preview of that trade-off, and quality down to around 70% is usually hard to tell apart from the original.
Can I compress multiple 图片 at once?
Yes — drop as many JPG, PNG, or WebP files as you need. Every file is compressed with the same quality setting and each result can be downloaded individually.
Are my 图片 uploaded to a server?
No. 压缩ion happens locally in your browser, so your 图片 never leave your device — nothing is stored, tracked, or sent anywhere.