Wordle is described as 'toy for generating “word clouds” from text that you provide. The clouds give greater prominence to words that appear more frequently in the source text'. There are more than 10 alternatives to Wordle, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and iPad. The best alternative is Cloudart. It's not free, so if you're looking for a free alternative, you could try Fotowall or WordClouds.com. Other great sites and apps similar to Wordle are WordArt (Paid), Wordaizer (Freemium), ImageChef Visual Poetry (Paid) and Kumo (Free, Open Source).