Guardyn

Secure Messaging.
Your Way.

End-to-end encrypted messenger with Signal Protocol.
Self-hosted. Cross-platform. Open architecture.

🚀 Join Beta Testing View on GitHub
E2EE
Signal Protocol
100%
Open Source
Self
Hosted
Multi
Platform

Why Choose Guardyn?

Built with privacy and security at its core, leveraging industry-standard protocols

🔐

Signal Protocol

Industry-standard end-to-end encryption with perfect forward secrecy. X3DH key agreement and Double Ratchet algorithm ensure maximum security.

🏠

Self-Hosted

Full control over your data. Deploy backend services and authentication on your own infrastructure with complete privacy and security.

📱

Cross-Platform

Flutter-powered application running seamlessly on Android, iOS, Web, Windows, macOS, and Linux. One codebase, everywhere.

🚀

High Performance

ScyllaDB for high-throughput message storage, Redis for caching, WebSocket for real-time communication. Built for scale.

🎙️

Voice & Video

WebRTC-powered encrypted voice and video calls with peer-to-peer connection and TURN fallback for NAT traversal.

🤖

Bot Platform

Extensible bot platform with webhook support. Automate workflows, integrate services, and build custom solutions.

Technology Stack

Modern, battle-tested technologies for security and performance

Backend Services

Go Microservices Node.js PostgreSQL ScyllaDB Redis MinIO

Client

Flutter 3.x Dart BLoC Pattern WebRTC

Cryptography

Signal Protocol X25519 Ed25519 AES-256-GCM HKDF-SHA256

Infrastructure

Docker Kubernetes Kong Gateway Prometheus Grafana

Join Beta Testing

Be among the first to try Guardyn. Get early access and help shape the future of secure messaging.

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