Here's another: The Ultimate Paint Conversion Chart
At the bottom left there are checkboxes you can use to select what you want shown and just above there is a button labeled Download PDF. You can download that and use it anytime. It doesn't give you the larger color swatches or the selections on what to show but you can search PDF files for numbers, names, etc. Plus, if anything should happen to the site or server you'll have it forever.
Tony