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The easing editor

Select an easing to get a visual animated preview for how it behaves

If you view a property value containing an easing (e.g. the 'ease-in' in transition: color .5s ease-in;) - click the easing icon to see a preview on what it looks like. You can also select other easings to preview and/or set them as the new easing for the inspected element.

Now in Chrome Canary