WebAuthn is a widely supported standard for authentication on the web, allowing users to leverage biometric methods in a simple browser-native experience. It provides credentials without storing private data, instead relying on public keys stored securely by the user's authenticator. WebAuthn improves both security and user experience during login, offering easy integration with major browsers and access to built-in operating system authentication methods like Face ID, Android fingerprint identification, and Windows Hello facial recognition. The protocol is used in conjunction with related standards CTAP2 and FIDO2, and its implementation requires minimal effort from developers, with the most complicated part being converting between base64 and byte arrays. With browser support across all major browsers except Internet Explorer, WebAuthn offers a secure and user-friendly authentication solution for web applications.