The best open source alternative to Proton VPN is Mullvad VPN. It's not free, so if you're looking for a free alternative, you could try Tor VPN or Windscribe. If that doesn't suit you, our users have ranked more than 100 alternatives to Proton VPN and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Proton VPN are IVPN, Psiphon, NymVPN and Private Internet Access.
Delivers anonymous, privacy-focused VPN connections with no signup data or logs, anonymous payments, support for the latest encryption, WireGuard multihop, SOCKS5, DNS ad-blocking, kill switch, high-speed servers up to 40Gb/s, and open-source transparency.
Sweden
EU
A VPN that grants network-level privacy on mobile by routing app traffic through Tor, assigns each app a separate circuit for improved separation, bypasses app-level censorship, features per-app routing, security via Rust-based implementation, and awaits early adopter feedback.
United States
Windscribe VPN is your all-in-one solution for privacy, security, and unrestricted internet access.
Canada
Privacy-centered VPN with WireGuard, multi-hop connections, built-in ad/tracker blocking, no activity logs, open-source apps, cash or crypto payments, self-hosted servers, independent security audits, no affiliate marketing, privacy donations, and educational guides.
Gibraltar
Enjoy unfiltered Internet access globally using Psiphon's open-source VPN. It offers AES-256 encryption, split tunneling, WireGuard support, and more, all without requiring user registration. Perfect for communities in censored regions and those seeking privacy-focused alternatives.
Canada
Decentralized VPN featuring mixnet technology to encrypt traffic and obscure metadata, provides 5-hop and 2-hop privacy modes, WireGuard for speed, AmneziaWG for censorship resistance, hides IP and location, blocks ads, and does not support centralized logs.
Switzerland
Encrypts internet connection and online activity, offers anonymous IP addresses, maintains a strict no-logs policy, utilizes open-source protocols, protects on public WiFi, features a kill switch, has a large global server network, delivers fast speeds, includes a free breach monitor, and supports unlimited devices.
United States
Combines classic VPN, free regional access, and easy self-hosted setup inside one open-source app. Built for censorship-heavy environments, it uses an enhanced WireGuard protocol, supports many platforms, offers region switching, and passed 7ASecurity audits.
CyprusEU
Privacy-focused VPN without IP or traffic logs, ensuring user anonymity with random logins; supports Bitcoin payments, uses end-to-end encryption through WireGuard; excels in bypassing internet filters and maintaining user anonymity with two-party protocol involving exit servers operated by Mullvad.
United States
Journalists need safe access to information to research issues, communicate with sources, and report the news. Outline lets news organizations easily provide their network safer access to the open internet.
United States
Riseup offers Personal VPN service for censorship circumvention, location anonymization and traffic encryption. To make this possible, it sends all your internet traffic through an encrypted connection to riseup.net, where it then goes out onto the public internet.
United States
Experience a completely anonymous and secure browsing session with minimal setup using this free VPN. Benefit from open source transparency, free service, no logs, and safe handling of DNS. The service cleverly circumvents censorship and ensures there are no IP or DNS leaks for enhanced privacy.
United States
