Relayly: Your private relay for local-first applications

A lightweight, self-hosted WebSocket relay that enables secure end-to-end encrypted communication
between your own devices, without relying on any big tech cloud.
Born during the months of internet blackouts and power outages in Iran, it was created to solve a real and painful problem:
how do you keep your devices connected when the outside world becomes unreliable?
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Let's GO!

Learn more

at relayly.app

View on GitHub

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The Beginning

In early 2026, while Iran faced months of power blackouts and internet disruptions, many developers and families lost the ability to keep their devices connected. Simple things like syncing notes, controlling IoT devices, or sharing files inside a home suddenly became difficult.

At NIKX Technologies in Amsterdam, we were already building IoT devices and managing self-hosted infrastructure. Watching this situation unfold made one thing very clear:
People don’t need bigger clouds.
They need small, resilient, private networks they fully control.

From that realization, Relayly was born.

The Vision

Relayly is a lightweight, self-hosted WebSocket relay server that enables secure, end-to-end encrypted communication between your own devices, without depending on any big tech cloud.
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It acts as your personal, private postman:

Your devices send encrypted messages through Relayly.

Relayly only forwards the messages, it can never read the content.

Everything stays under your control.

Why It Matters

In a world of increasing internet instability, censorship, and privacy concerns, Relayly gives developers and users a simple way to build applications that keep working even when the outside world is unreliable.

It is perfect for:

Personal sync tools (notes, tasks, bookmarks)

Resilient IoT projects

Offline-first and local-first applications

Privacy-conscious developers and teams

Our Journey So Far

Started as an internal tool to solve real connectivity problems

Built with simplicity and security as core principles

Uses Noise Protocol XX for strong end-to-end encryption

Single binary + Docker support for easy self-hosting

Official Go and TypeScript SDKs already available

Open-sourced under MIT license

The Road Ahead

We are just getting started. Future plans include:

Better device discovery and pairing

More official client libraries (Flutter, Rust, Python…)

Improved admin dashboard

Better documentation and examples

Our Commitment

At NIKX Technologies, we believe in building tools that give power back to users.Relayly is developed with full transparency and is completely open source.

‍Made with ❤️ in Amsterdam