Free Online Image OptimizerContact us
Online Image Optimizer is built and run by ScientiaMobile, the company behind WURFL and the ImageEngine image CDN. The site is free, carries advertising, and exists partly to show what the engine behind it can do. If something is broken, something is missing, or you want to tell us the tool saved you an afternoon, this reaches the people who work on it.
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Before you write
Two questions come up often enough to answer here. Where do my pictures go? Most of the editing happens in your own browser and never leaves your machine; what is uploaded for compression is deleted automatically after a short period and used for nothing else. Is it really free? Yes, with no account and no watermark.
If you are looking for how a particular tool works, the step-by-step guides cover every one of them with screenshots, and what can you use it for starts from the job rather than the tool.