good image optimizer that can be used?

Hai guys,

I want compress my images without changing the quality... Because my web ap开发者_开发知识库plication uses lots of images and when i inspected with firebug i found images size where huge...

• Are there any good image optimizer?

  I know there is SmushIt from yahoo... Any other useful image optimizers?

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For PNG images there are OptiPNG and PNGCRUSH.

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You can use imagemagick if you are using linux, google will offer you lots of examples to batch-process.

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If you are using Visual Studio a great extension to install is the Image Optimizer. It uses the SmushIt service from Yahoo. It's great for processing a large number of files at once at the click of a button.

For more info and a download - http://blogs.microsoft.co.il/blogs/gilf/archive/2011/05/14/visual-studio-2010-image-optimizer-extension.aspx