Open internet,
for everyone.
PassThru Technologies builds censorship-circumvention tools powered by Outline (Shadowsocks) and VLESS — so people everywhere can access a free and open internet.
What We Do
We build censorship-circumvention software on open-source protocols — so no firewall, ISP, or adversary can decide what you can access.
Censorship Circumvention
Built to bypass deep packet inspection and adversarial firewalls — restoring access where it has been blocked.
Cross-Platform
Our solutions run natively on iOS, Android, macOS, and Windows — with a seamless experience across all devices.
Open-Source Protocols
Powered by Outline (Shadowsocks) and VLESS — battle-tested open protocols designed to be fast and hard to detect.
Strong Encryption
Industry-standard AES-256-GCM encryption in every product we ship, by default.
Our Products
We build focused VPN products, each with its own identity and dedicated experience.
PassThru VPN
A censorship-circumvention VPN for everyday users. Powered by Outline (Shadowsocks), with a simple interface and cross-platform support — built to keep you connected where others can't.
Visit passthruvpn.comKappy VPN
An approachable internet freedom tool for users who want unrestricted access without any technical complexity. Open protocols under the hood, effortless on the surface.
Visit kappyvpn.comWork with us
Have a question, a partnership idea, or just want to say hello? We'd love to hear from you.
Contact Us