SOC 2 Type II Certified · ISO 27001 · GDPR Compliant

Zero-Trust Secure Connectivity. Reinvented.

VaultLink provides enterprise-grade encrypted tunnels, cryptographic key authentication, and secure remote command execution — all from a single unified platform. The category-defining solution for mission-critical infrastructure access.

Start Free Trial Schedule Demo
Trusted by security-conscious teams at
Local 10.0.1.42
AES-256-GCM
Remote 192.168.50.1
256-bit Encryption
<2ms Auth Latency
99.999% Uptime SLA
0 Encrypted Sessions Daily
0 Uptime Guarantee
0 Countries Served
0 Security Breaches
Capabilities

Everything you need to secure your infrastructure

Every feature built from first principles. No compromises. No shortcuts.

🔑

Cryptographic Key Auth

Replace passwords with Ed25519, ECDSA, or RSA key pairs. Our -i IDENTITY_FILE flag lets you specify exactly which cryptographic identity to present. Zero-knowledge, zero-friction.

-i identity_file
🚇

Local Tunnel Fabric™

Forward any local port through an encrypted channel to a remote host. Reach internal services behind firewalls like they're on localhost. The ultimate high-leverage unlock for hybrid infrastructure.

-L [bind:]port:host:hostport
🔄

Reverse Tunnel Engine

Expose internal services to external networks securely. Connections to the remote port are forwarded back through the encrypted channel to your local machine. Game-changing for zero-trust architectures.

-R [bind:]port:host:hostport
🌐

Dynamic SOCKS Proxy

Spin up a SOCKS4/SOCKS5 proxy in seconds. Route all application traffic through an encrypted channel. The compound effect on your security posture is immeasurable.

-D [bind_address:]port
🏗️

ProxyJump™ Multi-Hop

Chain jump hosts to reach deeply nested infrastructure. Comma-separate your hops and let VaultLink establish cascading encrypted channels all the way down. Best-in-class bastion host management.

-J destination
🖥️

X11 Display Forwarding

Run graphical applications on remote machines with full display forwarding. Trusted or untrusted modes with automatic Xauthority cookie management. Category-defining remote desktop alternative.

-X / -Y
📡

Agent Forwarding

Forward your authentication agent through the encrypted channel. Authenticate to downstream systems without ever placing keys on intermediate hosts. Security surface area, minimized.

-A
⚡

Wire Compression

Compress all data — stdin, stdout, stderr, and forwarded channels — with a single flag. Reduce bandwidth across slow or metered connections. The 10x improvement your ops team has been pleading for.

-C
Tunnel Architecture

Visualize your encrypted connectivity fabric

Watch packets traverse military-grade encrypted channels in real time.

💻
Client Machine
Port 8080
Local Forward -L
AES-256-GCM
🖧
Remote DB
Port 5432
🌍
External Client
Port 80
Reverse Forward -R
ChaCha20-Poly1305
🏠
Internal App
Port 3000
🔒
SOCKS Client
Port 1080
Dynamic Proxy -D
SOCKS5 + AES-256
☁️
Any Destination
Dynamic
Architecture

How VaultLink works

Four ruthlessly simple steps from zero to secure.

01

Provision Identity

Generate your Ed25519 or ECDSA key pair. VaultLink's identity engine manages your cryptographic credentials with automatic rotation and zero-downtime provisioning.

02

Establish Tunnel

Connect to any remote endpoint with military-grade encryption. VaultLink negotiates the strongest cipher suite via our proprietary handshake protocol with sub-2ms authentication.

03

Execute at Scale

Run commands remotely, forward ports, proxy traffic, or open interactive sessions. Every byte traverses a fully encrypted channel with zero trust by default.

04

Audit Everything

Every connection, every forwarded port, every command — logged immutably. Verbose mode (-v) gives you deep observability into every handshake and cipher negotiation.

Compliance

Real-time Security Audit Log

Every connection event, cryptographically verifiable and immutably recorded.

VaultLink Security Audit — Live Feed
[00:00:01] ✓ Key exchange: curve25519-sha256 negotiated
[00:00:01] ✓ Host key verified: SHA256:nThbg6kXUp...QWy7 (ED25519)
[00:00:02] ✓ Authentication: publickey (ED25519-CERT-V01) accepted
[00:00:02] ✓ Channel opened: session, id 0
[00:00:03] ✓ Local forward: 127.0.0.1:8080 → db.internal:5432
[00:00:03] ✓ Cipher: [email protected], MAC: implicit
[00:00:04] ✓ Compression: [email protected] enabled
[00:00:05] ✓ Session TTY allocated: /dev/pts/0
Trust & Compliance

Enterprise-grade security you can verify

We don't just talk about security. We prove it.

SOC 2

SOC 2 Type II

Continuous monitoring. Annual audit. Full report available under NDA.

ISO

ISO 27001

Information security management certified across all data centers.

GDPR

GDPR Compliant

Full data sovereignty. Choose your region. Your keys never leave your jurisdiction.

HIPAA

HIPAA Ready

BAA available. End-to-end encryption of PHI in transit. Zero-access architecture.

FedRAMP

FedRAMP Authorized

Meets federal security standards. Government-grade encryption at every layer.

PCI

PCI DSS Level 1

Payment card data flows through encrypted tunnels only. Audit logs for every transaction.

See It In Action

Ship secure. Ship fast.

Watch VaultLink establish an encrypted tunnel in milliseconds.

Terminal — VaultLink CLI
→ vaultlink -i ~/.vaultlink/id_ed25519 [email protected]
Authenticated to prod.internal ([10.0.50.12]:22) using "publickey".
Last login: Mon Mar 12 09:14:02 from 10.0.1.42
deploy@prod $ uptime
09:15:03 up 142 days, 3:22, 1 user, load average: 0.08, 0.12, 0.09
→ vaultlink -L 8080:db.internal:5432 -N bastion.corp.io
Authenticated to bastion.corp.io ([203.0.113.50]:22).
Local forwarding: 127.0.0.1:8080 → db.internal:5432
Tunnel active. Ctrl+C to disconnect.
→ vaultlink -J bastion.corp.io [email protected]
Authenticated to bastion.corp.io ([203.0.113.50]:22).
Authenticated to 10.0.99.5 ([10.0.99.5]:22) via bastion.corp.io.
admin@core $ hostname
core-node-1.internal
→ vaultlink -D 1080 -f -N gateway.secure.io
Authenticated to gateway.secure.io ([198.51.100.10]:22).
Dynamic SOCKS5 proxy: 127.0.0.1:1080
Backgrounded. PID: 48291
Why VaultLink

The competitive landscape is clear

Capability VaultLink Competitor A Competitor B
End-to-end encryption AES-256-GCM + ChaCha20 AES-128 only TLS wrapper
Key-based auth Ed25519 / ECDSA / RSA RSA only Password-based
Port forwarding Local + Remote + Dynamic Local only Not supported
Jump host chaining Unlimited hops Single hop Not supported
X11 forwarding Trusted + Untrusted modes Trusted only Not supported
Connection multiplexing Full master/slave Limited Not supported
Compression Adaptive zlib None Custom codec
VPN tunneling Layer 2 + Layer 3 Layer 3 only Not supported
Pricing

Transparent pricing. No hidden costs.

Start free. Scale when you're ready. No credit card required.

Starter
$0/mo
  • Password authentication only
  • 5 remote sessions / day
  • Single port forward (-L)
  • Standard ciphers
  • Community support
Get Started
Most Popular
Pro
$29/mo
  • Key-based auth (-i)
  • Unlimited sessions
  • Local + Remote forwards
  • Dynamic SOCKS proxy (-D)
  • Compression (-C)
  • Verbose mode (-v)
  • Background mode (-f)
Start Free Trial
Team
$79/seat/mo
  • Everything in Pro
  • ProxyJump™ multi-hop (-J)
  • Agent forwarding (-A)
  • X11 forwarding (-X/-Y)
  • Connection multiplexing
  • SSO / SAML integration
  • Audit logs & compliance
Contact Sales
Enterprise
Custom
  • Everything in Team
  • Force TTY allocation (-t)
  • Stdio forwarding (-W)
  • VPN tunneling (Layer 2/3)
  • Custom cipher selection
  • Dedicated account team
  • 99.999% SLA
  • On-premise deployment
Talk to Sales
Social Proof

Trusted by world-class security teams

★★★★★
"VaultLink's ProxyJump feature is a paradigm shift. We went from managing twelve bastion scripts to a single comma-separated flag. This is the kind of zero-to-one unlock that compounds."
Kenji Matsuda
Kenji Matsuda VP of Infrastructure, ScaleForge
★★★★★
"Dynamic SOCKS proxy with -D turned our security posture from reactive to proactive. We route all dev traffic through VaultLink now. The surface area reduction is massive."
Ivan Ramirez
Ivan Ramirez CTO, DeepSec Technologies
★★★★★
"I've been building with VaultLink since the early days. The agent forwarding via -A means my keys never touch a server that's not mine. Strong opinions, loosely held — but I'm never switching."
Sofia Laurent
Sofia Laurent Solo Developer & Security Consultant
★★★★★
"The verbose mode gives us complete observability into every cipher negotiation and key exchange. When auditors ask for proof, we hand them VaultLink logs. The conversation ends there."
Kieran Sato
Kieran Sato CISO, Axiom Financial
FAQ

Frequently asked questions

VaultLink uses asymmetric cryptography. Your private key never leaves your machine. Authentication is performed via a challenge-response protocol where the server verifies your identity without ever seeing your secret key material. We support Ed25519, ECDSA, and RSA key algorithms.

Absolutely. Our ProxyJump™ feature (-J) supports unlimited chaining. Separate destinations with commas and VaultLink will establish cascading encrypted channels through each hop. Each hop is independently authenticated and encrypted.

We support AES-256-GCM, AES-128-GCM, ChaCha20-Poly1305, and additional cipher suites. Key exchange uses curve25519-sha256, ecdh-sha2-nistp256, or diffie-hellman-group-exchange-sha256. Use the -o flag to specify exact cipher preferences.

Yes. The -N flag disables remote command execution. This is the recommended approach for pure port forwarding use cases — establish the encrypted tunnel and forward ports without opening a shell. Combine with -f to run the tunnel in the background.

VaultLink reads a per-user configuration file (~/.vaultlink/config) and supports over 80 configuration directives via the -o flag. You can specify anything from preferred authentication methods to keep-alive intervals to proxy commands — all per-host if needed.

See mandō's portfolio

Lyst Drift Locus Repliq Portage Voidal Scaffold Vøid Imprint Concat Stratum Folio Topline Tailstream Sieve Seekr Rewrite Trellis Sortable SINGULR Census Slice Morph FanOut Argonaut Reverb Formatik Epoch Solstice IDENT Signum Quorum Pulsar Overseer Terminus PURGE Dispatch Sotto Limelight Persist Vantage Canopy Attaché Détaché Tether Aegis CLAIMR Cohort Archivex Deflate Unravel ArcVault XTRAKT Conduit Fetch AFFIRMATIV VaultLink Teleport DeltaSync Heartbeat Hopscotch Resolver Namesake Uplink CONNEX Callsign Milieu Propagate Sourcery Persona SEVER Chronicle Codex Relevance Resolv Nomenclature MAGIQ Intrinsic Diverge Patchwork VIGIL Breeze Cadence Kronos Atelier SUPRA Mandate Turnkey Accession Reforge Collective PipeForge Netweave Panoptik Substrate Repose Verity FAULTR Provenance Chrono