You can use Diffractor for free but if you find it useful please become a sponsor. Diffractor developers and testers are unpaid volunteers, we rely on sponsors to pay our costs. If you use it at work, get your company to become a sponsor. Some indexing features are only enabled for sponsors.
Becoming a sponsor involves a small fee. The money is used to keep servers running, we are not buying Ferraris. Paying only takes a moment using the PayPal button below.