Tools for JPEG optimization? [closed]

Answer 1

I would recommend using http://kraken.io It's ultra-fast webapp which will optimize your PNG and JPEG files far better than smush.it does.

Answer 2

I would try Imagemagick. It has tons of command line options, its free and have a nice license. http://www.imagemagick.org

There seems to be an option called Strip that may help you: http://www.imagemagick.org/script/command-line-options.php#strip

Answer 3

You can use jpegoptim which will losslessly optimize jpeg files by default. The --strip-all option strips all extra embedded info. You can also specify a lossy mode with the --max switch which is useful when you have images saved with a very high quality setting, which is not necessary for eg. web content.

You get similar optimization as with jpegtran (see answer by OutOfMemory) but jpegoptim can't save to progressive jpegs.

Answer 4

May I recommend this for near-transparency:

convert 'yourfile.png' ppm:- | jpeg-recompress -t 97 -q veryhigh -a -m smallfry -s -r -S disable - yourfile.jpg

It uses imagemagick's convert and jpeg-recompress from jpeg-archive.

Both are open-source and work on Windows, Mac and Linux. You may want to tweak the options above for different quality expectations.

Answer 5

I wrote a GUI for all image optimization tools I could find, including MozJPEG and jpegoptim that optimize Huffman tables, progressive scans, and (optionally) remove invisible metadata.

If you don't have a Mac, I also have a basic web interface that works on any platform.

Answer 6

A new service called JPEGmini produces incredible results. A shame that it's online only. Edit: It's available for Windows and Mac now