磨剑庐

smushit是一款图片压缩服务，能在保证图片质量的前提下，最大化和最优化压缩图片.

操作简单，无需注册，smushit提供一次性压缩单张或多张图片的服务，可以从本地上传然后进行压缩，如果知道图片url地址，也可直接从网上直接进行压缩，只要找准图片地址即可，而且可以批量操作，压缩后的图片最后以zip文件打包提供下载，实在是方便不少。

also:webresizer

Smushit.com is a service that goes beyond the limitations of Photoshop, Fireworks & Co. It uses image format specific non-lossy image optimization tools to squeeze the last bytes out of your images - without changing their look or visual quality. You'll get a report of how many bytes you can save by optimizing your images and all the changed images as a single zip for download.

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