Best Calyx VPN Alternatives & Competitors in 2025

ProtonVPN is a security focused FREE VPN service, developed by CERN and MIT scientists. Use the web anonymously, unblock websites & encrypt your connection.

Open Source

Mullvad is a Swedish virtual private network (VPN) provider.

Verify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance.

Try for free freemium $0.1 (per credit)

Windscribe is a desktop application and browser extension that work together to block ads and trackers, restore access to blocked content and help you safeguard your privacy online.

Open Source

RiseupVPN is an easy, fast, and secure VPN service from https://riseup.net. RiseupVPN does not require a user account, keep logs, or track you in any way.

Open Source

Psiphon is circumvention software for Windows and Mobile platforms that provides uncensored access to Internet content. Read more about Psiphon.

Hotspot Shield is a software application developed by AnchorFree, Inc.

At ZenMate VPN we strive towards providing users around the world with a free and anonymous Internet experience.

Really simple VPN to browse the web privately & anonymously.

Tor is free software for enabling anonymous communication.

Open Source

Fast and secure, ad and tracker blocking browser.

Open Source

NordVPN offers VPN technology that encrypts data twice.

A fast tunnel proxy that helps you bypass firewalls

Open Source

OpenVPN - The Open Source VPN

Open Source