TagCrowd is free for commercial and non-commercial use. It exists thanks to the mutual goodwill between myself and the people who use it. It makes me happy to provide something useful to the thousands of people who use it every day.
This is a project I work on for fun, on the side, when my paid work admits a little free time (which is not as often as I'd like). I used to charge for commercial use but I recently decided to make it free for everyone. My gift to you.
I received a lot of kind email from people who love TagCrowd asking if they could donate to help keep it going. I decided to open it up and let anyone contribute whatever they feel is appropriate.
To show your appreciation, you can 'buy me a cup of coffee.' Your patronage here will help me implement your feature requests sooner and help keep the TagCrowd plumbing in good working order. Thank you!