Open Source

Voltainer
Daemon-Free Containers

Fast, daemon-free container runtime built on systemd-nspawn. 50ms cold starts. No idle overhead. Cryptographic verification at every layer.

50ms
Cold Start
0 MB
Idle Overhead
<5 MB
Per Container
48×
Faster Than Docker
Get Started Free Documentation
terminal — voltainer
$ curl -fsSL https://get.armoredgate.com | sh
# Install Voltainer CLI
 
$ volt run nginx:latest
→ Verifying image signature... ✓
→ Mounting TinyVol image... ✓
→ Applying security policies... ✓
✓ Container started in 47ms

Built on Linux, not around it

Most container runtimes add layers on top of the kernel. Voltainer uses what's already there. No containerd. No runc. No namespace juggling at runtime.

Your Application Process
Voltainer Runtime Direct Execution
systemd-nspawn Isolation
Landlock + seccomp Security
Linux Kernel Battle-tested since 2010
Key Features

Why Voltainer

Voltainer runs containers without a background daemon eating your RAM. Drop-in OCI compatibility means your existing images work unchanged.

No Daemon

Zero background processes. Zero idle memory. Your container runs as a direct systemd service. No polling, no wasted cycles.

🔐

Cryptographic Verification

Images are verified at runtime, not just download-time. If bytes don't match signatures, containers don't start. Period.

🛡️

Automatic Security Policies

seccomp and Landlock profiles are derived from image contents. No manual policy writing. No CVE-of-the-week scrambles.

⚙️

Native SystemD Integration

Containers run as systemd services with full journal logging, restart policies, and dependency management. Production-ready from day one.

📦

OCI Compatible

Your existing Docker images work unchanged. No re-building, no migration pain. Just faster, more secure execution.

🚀

50ms Cold Starts

Mounts TinyVol images directly, applies pre-computed security policies, and starts your process. That's it. No extraction, no overhead.

Performance by the numbers

Real benchmarks on real hardware. No cherry-picked results.

Cold Start Time
50ms
vs 2,400ms Docker average
Idle Memory
0 MB
vs 188 MB Docker daemon
Per-Container Memory
<5 MB
vs 18-33 MB Docker containers
Image Format
.volt
TinyVol optimized images
Isolation
nspawn
systemd-nspawn containers
License
Apache 2.0
Open source, no surprises

Voltainer vs Docker

Metric Voltainer Docker Difference
Voltainer 50ms 2,400ms 48× faster
Docker 0 MB 188 MB ∞ smaller
Container Memory <5 MB 18-33 MB 4-7× smaller
Runtime Verification Yes No
Auto Security Policies Yes Manual

Ready to ditch the daemon?

Start running containers the way they were meant to run. Open source, Apache 2.0 license, production-ready today.