Wordle is a tool for generating “word clouds” from the text that you provide. The clouds give greater prominence to words that appear more frequently in the source text. You can tweak your clouds with different fonts, layouts, and color schemes. The images you create with Wordle are yours to use however you like. You can print them out or save them to your own desktop.
You may want to try installing a desktop version of it on your Mac or Windows computer. The desktop version is exactly the same as the old web version. You’ll have to work around various scary security warnings because the app installers aren’t signed.