Instant Previews for
Every GitHub Branch

Spin up isolated micro-VM environments automatically for every commit, PR, or agent workflow. Zero CI config, zero waiting.

Connect GitHub
📦
Commit / PR
⚙️
Micro-VM
🌐
Live URL
🔌

Connect GitHub

Install the PrevHQ GitHub App. We auto-detect your stack (Node, Python, Go, Docker) instantly.

🚀

Push a Branch

Every commit automatically triggers a fresh micro-VM. No complex YAML configuration required.

🔗

Get a Live URL

Your environment boots instantly at branch-name.onprev.com ready to share.

Live Preview Experience

Full interactive environments, not just static builds.

Traditional CI: 4m 30s
PrevHQ: 2.1s
https://feat-login-redesign.onprev.com
✨
Application Preview Loaded

Built for Developers and
AI Agents

Trigger previews programmatically using a simple API. Perfect for agentic verification workflows where you need a real URL to test against.

  • ✓ API-first design
  • ✓ JSON output for agent parsing
  • ✓ Supports custom Dockerfiles 
POST /api/v1/previews
{
  "repo": "prevhq/core",
  "branch": "feature/ai-agent",
  "builder": "docker"
}

// Response (200 OK)
{
  "id": "prev_9a8b7c",
  "url": "https://ai-agent.onprev.com",
  "status": "ready",
  "boot_time_ms": 2100
}

⚡ Instant Micro-VMs

Firecracker-based isolation ensures your previews are secure and boot in milliseconds.

🛠️ Auto-Detection

We scan your repo for package.json, go.mod, or Dockerfiles and configure the build automatically.

🔒 Private Repos

Securely connect private repositories with fine-grained GitHub App permissions.

⚙️ Zero Config

Stop writing thousands of lines of YAML. It just works out of the box.

⏱️ Custom Lifetimes

Set TTLs for your previews to save costs and keep your environment clean.

📊 Logs & Metrics

Real-time streaming logs and resource usage metrics for every preview instance.

Simple, Transparent Pricing

Hacker
$0/mo
  • ✓ 5 concurrent previews
  • ✓ 1-hour lifetime
  • ✓ Public repos only
  • ✓ Community support
Start Free
Pro
$20/mo
  • ✓ 20 concurrent previews
  • ✓ 8-hour lifetime
  • ✓ Private repos
  • ✓ Priority support
Get Started
Team
Custom
  • ✓ Unlimited previews
  • ✓ Custom lifetimes
  • ✓ SSO & Audit Logs
  • ✓ Dedicated Infra
Contact Sales

Frequently Asked Questions

How secure are the previews?
Previews run in isolated Firecracker micro-VMs, ensuring strong boundary separation between environments. We use ephemeral keys and strictly scoped permissions.
Do you support private repositories?
Yes, private repository support is available on the Pro and Team plans. We use the GitHub App integration to securely access your code.
What stacks are supported?
We support Node.js, Python, Go, Rust, Ruby, PHP, and Java out of the box. For anything else, you can provide a Dockerfile.
Can I use this for AI agents?
Absolutely. Our API is designed for agentic workflows, returning JSON responses with live URLs that agents can visit to verify their changes.