Transfer files and send encrypted messages between devices using acoustic transmission. Flexible encryption: choose AES-256-GCM, RSA-4096, or transmit unencrypted for speed. Air-gap secure. No internet, no cables, no network required.
Send encrypted messages and receive instant responses. Both open and private chat modes with optional token-based access control.
Choose your security level: no encryption for speed, AES-256-GCM for symmetric encryption, or RSA-4096 for asymmetric key-based security.
Transfer files and messages between devices using only sound waves. No network connection, no physical contact required.
Works completely offline. No internet required, no cloud services, no data collection. Your data stays yours.
Privacy-preserving audit logs that record metadata only, never message content. Full transparency without sacrificing security.
Perfect for isolated systems. Transfer sensitive data without compromising security perimeters in enterprise environments.
Select file transfer, open chat, or private chat mode with encryption options.
Choose your security level: no encryption, AES-256-GCM symmetric, or RSA-4096 asymmetric encryption.
Your data is transmitted via sound waves between devices in real-time.
Receive data on the target device. Automatic decryption with password or private key as needed.
Transfer sensitive credentials, keys, and configurations between air-gapped systems without physical media.
Share code snippets, API keys, deployment secrets, and collaborate securely across environments without network traces.
Deploy configurations and credentials to isolated systems while maintaining security perimeters and leaving no digital footprint.
Compare SonarLink with traditional file transfer methods
Air-Gap Security
Network Transfer
Physical Transfer
Air-Gap Security
Network Transfer
Physical Transfer
Download SonarLink v2.0 from GitHub and start transferring files and messages securely today.
View on GitHub