Open Source Alternatives to Proton VPN

A virtual private network service that encrypts internet traffic and hides IP addresses to protect user privacy. The software provides access to a network of over 20,000 servers across more than 140 countries and includes a DNS filtering tool called NetShield to block ads, trackers, and malware. It features a custom Stealth protocol to bypass geographic and government censorship. The product is available as an application for Windows, macOS, Android, iOS, Linux, and various web browsers. It is designed for individuals and organizations seeking to secure their online connections and access global content. Users can connect up to 10 devices simultaneously with a single subscription. The service is developed by Proton AG and maintains an open source codebase with third party audits to verify its no logs policy.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to Proton VPN give you an option you fully own. Run them on your own server or desktop, so your data stays under your control. This page lists 1 open source alternative to Proton VPN. The most popular is Outline. It uses the Apache-2.0 license.