KyberLock is a Chrome extension designed for secure communication, offering end-to-end encryption and steganography features. It allows users to send messages, files, and media securely without needing a pre-established password. The app operates entirely offline, ensuring that no sensitive information is stored on any servers or devices, which enhances user privacy. Features include real-time peer-to-peer chat, the ability to hide messages within innocuous text or images, and the option to create one-time readable messages, all while maintaining a high level of encryption for protection against quantum threats.

Built on the standardized Crystals-Kyber encryption method, KyberLock utilizes 256-bit XChaCha20 encryption to secure communications. The app facilitates the creation of a unique Lock from a user-defined secret Key, ensuring that only intended recipients can access the messages. KyberLock is consistent across various platforms, including mobile and desktop, and is designed for users who prioritize privacy and security in their communications.