GreatFireVPN is a virtual private network developed by GreatFire.org, an anti-censorship organization founded in 2011. The service is designed to help people access the open internet in countries with significant online restrictions, including China, Russia, Iran, Turkmenistan, Myanmar, and India; it is also used in Cuba. Drawing on more than a decade of experience, GreatFireVPN uses multiple circumvention methods and automatically selects a suitable connection and server to support reliable access.

Its features include split tunneling on Android, local access to selected services in certain countries, and support for up to 10 devices per account. GreatFireVPN says it does not log online activity or collect personal data, and users can try the service without registering or providing an email address. Apps are available for Android, iOS, macOS, and Windows. New users receive a 30-day free trial, with paid plans ranging from 30 to 365 days. The service also accepts cryptocurrency and offers a referral program that can extend trial access for users and their invited friends.