Online file resizer

Kraken is an online image compressing utility that compresses jpeg, gif, and png formats using a new algorithm. It claims that the compression on existing files can be losslessly improved.

Does it work?

I tried it on a random file on my hard-drive and the algorithm reduced the size from 853kb to 729kb (about a 14% reduction).

Here is the original file (click to view full size):

And here is the reduced file:

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