What Is a Home Server? A Plain-English Introduction

A home server is simply a computer you keep running at home to provide services to your other devices. Instead of renting storage, streaming and apps from big cloud companies, you host them yourself — on hardware you own and control.

What can a home server actually do?

You don't need to use every feature. Most people start with one or two of these:

• Store and share files across all your devices (a NAS).
• Stream your own media — movies, TV, music and photos — with Plex or Jellyfin.
• Back up your phones, laptops and important documents automatically.
• Block ads network-wide with Pi-hole or AdGuard Home.
• Run self-hosted apps like Nextcloud, Immich or Home Assistant using Docker.

Why run one instead of using the cloud?

There are three big reasons enthusiasts choose to self-host:

1. Privacy. Your data stays on your hardware, not on someone else's servers.
2. Control. You decide how services are configured, updated and backed up.
3. Cost. After the upfront hardware, there are no monthly subscription fees — just electricity, often only a few dollars a month.

A home server also happens to be one of the most rewarding ways to learn about Linux, networking and modern infrastructure.

Do you need expensive hardware?

No. A home server can be as small as a Raspberry Pi or a repurposed old laptop. For a smoother experience, a modern mini PC with an Intel N100/N150 and 8–16 GB of RAM is the best value for most people. See our best mini PCs guide for specific picks.

Is it hard to set up?

It's easier than ever. Beginner-friendly systems like CasaOS provide a graphical app store, and Docker Compose lets you deploy complex apps by copying a short configuration file. Our beginner's guide walks you through it from zero.

Where to go next

• Learn the vocabulary in our glossary.
• Follow the step-by-step beginner's guide.
• Browse self-hosted software worth running.

A home server puts you back in control of your digital life. Start small, host one thing well, and grow from there.