NordLocker is an encrypted cloud storage solution that provides file encryption, backup, and synchronization across devices. The service uses zero-knowledge architecture combined with AES-256, xChaCha20-Poly1305, and Ed25519 encryption algorithms to protect files with end-to-end encryption. The platform allows users to store files on cloud servers rather than local devices, enabling data synchronization across multiple devices and platforms. Files are encrypted before upload and remain encrypted during storage and transmission. NordLocker supports secure file sharing through email or link-based sharing with unique codes for additional security. The service is available as a web application accessible through major browsers (Chrome, Firefox, Edge, Safari), desktop applications for Windows, and mobile applications for Android and iOS. The free plan includes 3 GB of storage with end-to-end encryption. Premium plans offer up to 2 TB of private cloud storage with priority customer support. The platform uses ECC (Elliptic Curve Cryptography) alongside AES-256 for encryption, with secret keys protected by XChaCha20-Poly1305-IETF. Files stored in NordLocker are organized in encrypted vaults that protect data from unauthorized access and malware. The zero-knowledge architecture ensures that only users with proper authentication can access their encrypted data.