For developers
Free and open source software to rapidly integrate YubiKey strong two-factor, multi-factor and passwordless authentication into your software or service.

Rapid integration of strong authentication
Open Source Code
Integrate the YubiKey with your service, it’s quick and easy. The YubiKey works seamlessly with Windows, MacOS, Linux, iOS, and Android devices. No extra software for your users to download or license. Incorporate the open source YubiHSM SDK to safeguard your organization’s secrets.
Developer Tools
Use our reference documentation and testing tools to rapidly enable one touch authentication for your users. The YubiKey supports FIDO, PIV-compatible Smart Card, One-time Passwords (OTP), and OpenPGP.
Own Your Secrets
Control your own cryptographic secrets. No passwords, keys, PINs or other secrets are
shared with Yubico. Safeguard your organization’s cryptographic keys with the YubiHSM 2 and its open source SDK.

New Developer Program
The Yubico Developer Program provides resources for organizations implementing strong authentication. We offer free workshops, documentation, implementation guides, APIs and SDKs. Join our mailing list to get early access to resources for implementing the FIDO2, WebAuthn specification.
Works with YubiKey Program
Join the Works with YubiKey Program to have your products and services featured on the Works with YubiKey catalog. Participate in co-marketing activities that showcase your solution and promote the value of strong authentication.

Featured Solutions
Read about some of the recent and most popular YubiKey integrations.
DOCUMENTATION
Access user’s guides, configuration guides, and more for detailed instructions and technical information.