Sonarr vs Radarr: Which Should You Buy?
Affiliate disclosure: some links below are affiliate links. If you buy through them we may earn a commission at no extra cost to you. See our full disclosure.
Quick verdict
| Situation | Recommendation |
|---|---|
| You want to automate TV series downloads and library management | Use Sonarr (affiliate) – free, powerful, built for TV. |
| You need a movie‑only automation tool that keeps your film collection fresh | Choose Radarr (affiliate) – free, powerful, focused on movies. |
| You’re comfortable with a modest setup curve and want the best open‑source solution for media automation | Either Sonarr or Radarr will serve you well; pick based on whether TV or movies are your primary focus. |
Spec‑by‑spec
| Feature | Sonarr | Radarr |
|---|---|---|
| Category | TV Automation | Movie Automation |
| Type | Software | Software |
| Price | Free | Free |
| Best for | Automate TV libraries | Automate movie libraries |
| Pros | Powerful, free | Powerful, free |
| Cons | Setup curve | Setup curve |
Deep dive
1. What each tool actually does
Both Sonarr and Radarr are community‑driven automation engines that sit on top of your existing download client (e.g., qBittorrent or NZBGet). They monitor RSS feeds, indexers, and user‑provided lists for new episodes or movies matching the criteria you set. When a match appears, they automatically add it to your downloader, rename files according to your naming scheme, and move them into the correct folder structure for Plex, Jellyfin, or any other media server.
The key difference is scope: Sonarr only looks after TV series – handling seasons, episode numbers, multi‑episode packs, and even special episodes. Radarr treats each title as a standalone movie, managing qualities (1080p vs 4K), editions (director’s cut), and re‑downloads when higher quality becomes available.
2. Setup curve – why it matters
Both applications are “free” but they aren’t plug‑and‑play out of the box. You’ll need to:
- Install the core software on a host that stays online (a Raspberry Pi, a NAS, or a VM).
- Connect them to an indexer service (most people use Jackett as a bridge to private trackers).
- Configure your download client credentials and set up proper folder paths.
The setup curve is the only listed con for each product, which means you’ll spend some time reading docs or watching community videos before everything runs smoothly. Once configured, however, they become essentially “set‑and‑forget” – a huge win for any homelabber who values automation over manual file handling.
3. Remote access without exposing ports
If your media server lives behind NAT (as most home labs do), you’ll eventually want to manage Sonarr or Radarr from outside the house. Traditional port forwarding works, but it opens a permanent hole in your firewall. A safer approach is to use Tailscale – a free mesh VPN that lets you reach any device on your network with a single click (affiliate). For those who already have a VPN subscription, NordVPN Meshnet offers whole‑network connectivity, letting you treat every home device as if it were on the same LAN (affiliate). Both options keep the automation UI secure while preserving the convenience of remote control.
4. Community support and extensibility
Because both tools share a common codebase philosophy, they benefit from overlapping community resources: Docker images, Helm charts for Kubernetes, and extensive API documentation. You’ll find ready‑made scripts to automatically refresh Plex libraries after Sonarr or Radarr finishes a download, as well as UI themes that match your dashboard aesthetic.
Pros & cons
Sonarr
Pros
- Tailored specifically for TV series – handles seasons, specials, and multi‑episode packs flawlessly.
- Powerful search capabilities across multiple indexers when paired with Jackett.
- Completely free and open source; large community of contributors.
Cons
- Initial configuration can be intimidating for newcomers (setup curve).
- Requires a separate tool for movies – you’ll need Radarr or another solution if your library is mixed.
Radarr
Pros
- Focused on movies, with quality‑profile management that automatically upgrades to better releases.
- Same powerful automation engine as Sonarr, so the learning curve feels familiar once you’ve used one of them.
- Free and open source; strong community support for Docker/Kubernetes deployments.
Cons
- Like Sonarr, it demands a careful initial setup (setup curve).
- No built‑in TV series handling – you’ll need Sonarr if you also want to automate episodic content.
Which should you buy?
Both **Sonarr(