File sharing in air-gapped networks with Valurian. No internet required.

Air-gapped networks are critical to security but they break most modern file transfer tools. Cloud-based systems rely on constant connectivity, identity services, or SaaS APIs that don’t exist in sovereign or classified environments.
Valurian works where others can’t. It's delivering fast, secure, peer-to-peer file sharing across air-gapped or semi-disconnected environments with full encryption, integrity, and local control.

Cloud-first tools don’t work without the cloud.

Modern file-sharing platforms were built for always-online environments — not sovereign networks or air-gapped infrastructure. In disconnected or classified settings, most tools fail fast.

Let’s break it down:

  • SaaS lock-in
    Tools depend on internet-based login, licensing, and sync services that vanish without connectivity.
  • Fake “self-hosting”
    Many “on-prem” tools still phone home like pinging cloud APIs, license checks, or external DNS.
  • VPN bottlenecks
    Tunneling adds security risk, complexity, and major performance loss across sensitive networks.
  • Manual workarounds
    USB-based transfers? They're fragile, error-prone, and impossible to scale or audit.
Capability Cloud-dependent tools Valurian
Requires internet ❌ Always ✅ Never
Cloud authentication ❌ SaaS accounts required ✅ Local, identity-free modes
External API / Service calls ❌ Hidden dependencies ✅ Fully autonomous
Works in air-gapped networks ❌ Not possible ✅ Designed for it
Self-hosting ⚠️ Often partial only ✅ Fully local + portable
File integrity verification ❌ Rare or external ✅ Built-in, tamper-evident
Compliance ready (GDPR, ANSSI) ❌ Cloud audit risk ✅ Sovereign-compliant

Valurian is purpose-built for disconnected, sovereign networks

Most file-sharing systems assume internet access. Valurian doesn’t. It’s built for offline-first, sovereign, and air-gapped environments where control, compliance, and resilience matter most.

Here’s how:

  • Truly self-hosted and peer-to-peer
    No cloud controllers, no SaaS fallback. That means full operational autonomy.
  • DNS-free operation
    Works entirely inside isolated networks without external name resolution.
  • Deployable in SCIFs, enclaves, or offline data centers
    Built to run where compliance forbids external dependencies.
  • Access controls and policy workflows
    Define exactly who can move whata and when. Then enforce it locally.
  • Built-in hashing & file integrity
    Tamper-evident transfers with end-to-end validation without the need for separate tools.
  • Optimized for disconnected local networks
    Handles sovereign infrastructure, low-connectivity links, and isolated VLANs with ease.

"You control the nodes. You control the data."

What teams ask before going fully offline with Valurian

Compliance, connectivity, architecture: Here are the questions IT leaders ask when the cloud isn’t an option.

Can Valurian operate with zero internet access?

Yes. Valurian is built for fully air-gapped environments withtout the cloud, DNS, or the need for SaaS authentication.

All transfers are peer-to-peer, encrypted, and autonomous.

Is Valurian secure and compliant for sovereign deployments?

Absolutely. Valurian uses end-to-end encryption, access controls, and hashing.

It supports compliance with GDPR, ANSSI, ISO 27001, and offline operational mandates.

Does Valurian require a centralized server?

No. Valurian is decentralized by design. There’s no central broker or controller.

It operates with lightweight, self-managed nodes that scale flexibly.

How is Valurian better than syncing via USB drives?

Unlike manual USB workflows, Valurian automates transfers with policy enforcement, file verification, and audit logging.

No drag-and-drop, no human error.

Still have architecture or compliance questions? 
Browse our full FAQ