Buy Opacity

Buy Opacity or Opacity Express to unlock the demo limitations and help support its development. You'll also get all 1.x updates free of charge. Purchases use Paypal to process payments, but you do not need an account-you can use a credit card to pay.

Opacity Mailing List

If you already have a license for Opacity Express, you can upgrade to an Opacity license.

If you are having trouble or want information about site licenses, email .