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Homelab on the Cheap: Build Your Own Infrastructure for Under $100

March 14, 2026 • Homelab • Homelab on a budget.

You don't need expensive hardware to run your own services. You don't need a server room or a dedicated closet. You don't even need to spend more than a few dollars.

A homelab is about ownership. Running your own DNS, your own cloud storage, your own media server, your own password manager. Taking back control from the cloud giants—one container at a time.

This guide will show you how to start small, spend little, and build something meaningful.

The best time to start a homelab was last year. The second best time is today.

Level 1: The Raspberry Pi ($35-55)

The classic entry point. A Raspberry Pi is a small, affordable computer that uses very little power (under $10/year in electricity). It's perfect for learning and running lightweight services.

Recommended: Raspberry Pi 4 or 5

  • 4GB model: ~$55 ( refurbished or on sale)
  • 8GB model: ~$75 (if you want to run more containers)
  • Power supply: ~$10 (official charger)
  • Case: ~$10 (optional)
  • MicroSD card: ~$15 (32GB minimum, 64GB recommended)

Total: ~$80-95

What you can run on a Pi:

Level 2: Old Hardware (Free)

You probably already have capable hardware sitting in a closet. Old laptops, desktops, or even old servers from work (with permission) can make great homelab machines.

What to Look For

  • CPU: Intel i3/i5 or AMD Ryzen 3/5 (4+ cores ideal)
  • RAM: 8GB minimum, 16GB+ recommended
  • Storage: Can always add more drives later
  • Form factor: Small form factor (SFF) desktops are great
  • Power usage: Older desktops can be power-hungry (~100W)

Total: FREE (if you have old hardware)

Where to find free/cheap hardware:

Level 3: Refurbished Servers ($50-100)

For more power, enterprise hardware offers incredible value. Companies constantly cycle out hardware that's still perfectly capable.

Recommended: Dell OptiPlex / HP ProDesk

  • Desktop (SFF): $50-100 on eBay
  • Specs: Intel i5-6500 or better, 8-16GB RAM
  • Power: ~20-40W idle (much better than old desktops)
  • Noise: Very quiet, designed for offices

Total: ~$50-100

What to run on more powerful hardware:

The Software Stack

Hardware is just the beginning. Here's what to run once you have it:

Essential First Services

Self-Hosted Favorites

Networking Essentials

Your home network setup matters:

Power and Cooling

One of the biggest costs is electricity. A Raspberry Pi costs pennies to run. A desktop server might add $10-20/month to your bill.

Start Small, Grow Steady

Don't try to build everything at once. Start with one service. Learn it. Use it. Then add another.

My recommended order:

  1. Pi-hole or AdGuard: Immediate benefit—fewer ads everywhere
  2. WireGuard VPN: Secure remote access to your home network
  3. Bitwarden: Better password management
  4. Immich or Nextcloud: Your own cloud photo/storage
  5. Home Assistant: If you're into smart home
  6. Whatever else catches your interest!

The Real Cost

Here's the beautiful thing about homelab: the ongoing costs are minimal. Your initial investment gets you years of service. Compare that to:

A $100 homelab pays for itself in the first year.

You already own your computer. Now own your infrastructure.

The learning curve is worth it. You'll understand how the internet actually works. You'll have skills that matter. You'll own the things you use every day.

Start small. Stay curious. Build something.

Learn More

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