# Nginx Proxy Manager vs Caddy

## Quick Verdict

**Caddy is the better choice for most self-hosters** who are comfortable editing a config file. It uses less memory, starts faster, and automatic HTTPS requires zero configuration. Choose Nginx Proxy Manager if you want a point-and-click web UI and never want to touch a config file — NPM is genuinely easier for people who prefer GUIs over text editors.

## Overview

[Nginx Proxy Manager](https://nginxproxymanager.com) (NPM, v2.13.7) wraps Nginx in a web UI for managing reverse proxy hosts, SSL certificates, redirections, and access lists. You create proxy hosts through a form, toggle SSL on with a checkbox, and NPM generates the Nginx config behind the scenes. No config files to write.

[Caddy](https://caddyserver.com) (v2.9) is a web server and reverse proxy with automatic HTTPS as its core feature. Configuration uses the Caddyfile, a minimal text format where adding a new proxied service takes two lines. Caddy handles certificate provisioning, renewal, and OCSP stapling automatically.

Both solve the same problem — route traffic to your self-hosted services with HTTPS. NPM does it through a GUI. Caddy does it through a config file. The fundamental tradeoff is simplicity of management (NPM) versus simplicity of the tool itself (Caddy).

## Feature Comparison

| Feature | Nginx Proxy Manager (v2.13.7) | Caddy (v2.9) |
|---------|------------------------------|-------------|
| Configuration method | Web UI (forms and toggles) | Caddyfile (text) or JSON API |
| Automatic HTTPS | Yes — toggle per host | Yes — automatic for all sites, zero config |
| Let's Encrypt challenges | HTTP, DNS | HTTP, TLS-ALPN, DNS |
| Wildcard certificates | Yes — via DNS challenge | Yes — via DNS challenge |
| HTTP/2 | Yes | Yes |
| HTTP/3 (QUIC) | No | Yes |
| WebSocket support | Yes — toggle per host | Yes — automatic |
| Access control lists | Yes — built-in IP and password auth | Via plugins or Caddyfile directives |
| Custom Nginx config | Yes — advanced tab per host | N/A (not Nginx-based) |
| Static file serving | Yes (via custom config) | Yes — native, first-class |
| TCP/UDP forwarding | Yes — stream hosts | Yes — Layer 4 module |
| API for automation | No | Yes — comprehensive admin API |
| Multi-user support | Yes — multiple admin accounts | No built-in multi-user |
| Underlying engine | Nginx | Custom Go HTTP server |
| Config-as-code | No — stored in SQLite database | Yes — Caddyfile is a plain text file |
| License | MIT | Apache 2.0 |

## Installation Complexity

**NPM** is slightly easier for absolute beginners. Deploy the container, open port 81, and log in with the default credentials. Everything from there is point-and-click. No config files to create. The tradeoff: your proxy configuration lives inside NPM's SQLite database, not in a file you can version-control.

**Caddy** requires creating a Caddyfile before starting the container. But the format is remarkably simple:

```caddyfile
app.example.com {
    reverse_proxy container:8080
}
```

That is the entire config for a proxied service with HTTPS. No entry points, no certificate resolvers, no toggles. If you can write two lines in a text file, you can use Caddy.

Both take under 5 minutes to deploy. NPM has a lower floor (no text editing at all), but Caddy's ceiling is higher (config-as-code, version control, scripted deploys).

## Performance and Resource Usage

| Metric | Nginx Proxy Manager | Caddy |
|--------|-------------------|-------|
| Idle RAM | ~100-150 MB | ~20-40 MB |
| Under load RAM | ~200-300 MB | ~50-100 MB |
| CPU at idle | Low | Very low |
| Docker image size | ~400 MB | ~40 MB |
| Startup time | 3-5 seconds | < 1 second |

Caddy is dramatically lighter. NPM runs Nginx plus a Node.js management API plus SQLite. Caddy is a single Go binary. On a Raspberry Pi or low-spec VPS, Caddy leaves more resources for the services you're actually proxying.

## Community and Support

| Metric | Nginx Proxy Manager | Caddy |
|--------|-------------------|-------|
| GitHub stars | 23K+ | 60K+ |
| First release | 2019 | 2015 (v1), 2020 (v2) |
| Maintainer | Single developer (jc21) | Small team (Matt Holt + contributors) |
| Documentation | Good, focused on UI walkthrough | Excellent, detailed, well-organized |
| Community | GitHub issues, Reddit | Dedicated forum (caddy.community), Reddit |

Caddy has a larger community and more active development. NPM is maintained primarily by a single developer, which is a risk factor for long-term reliability. Both are open source and free.

## Use Cases

### Choose Nginx Proxy Manager If...

- You strongly prefer a web UI over editing config files
- You need built-in access control lists with password protection
- You want multi-user admin access
- You are managing a shared homelab where others need to add proxy hosts
- You want to inject custom Nginx directives for specific hosts

### Choose Caddy If...

- You want the lightest possible reverse proxy
- You value config-as-code and version-controlled infrastructure
- Memory is limited (Raspberry Pi, small VPS)
- You want HTTP/3 support
- You also need to serve static sites alongside proxied services
- You want an API for programmatic proxy management
- You want the fastest automatic HTTPS setup possible

## FAQ

### Can Caddy do everything NPM does?

For reverse proxying and SSL, yes. What Caddy lacks is the built-in web UI, multi-user access, and visual access control list management. If you need those, NPM is the right tool. If you don't, Caddy does the core job with less overhead.

### What if NPM's developer stops maintaining it?

This is a real concern. NPM is primarily a single-maintainer project. If development stops, your existing setup will continue working, but you would not get security updates or new features. Caddy has a broader contributor base and commercial backing.

### Can I use both together?

You should not run two reverse proxies on the same server — only one can bind ports 80 and 443. Pick one.

## Final Verdict

**Caddy is the better reverse proxy for most self-hosters.** It is lighter, faster, more secure by default (automatic HTTPS with zero config), and its Caddyfile is genuinely easy to write. Your config lives in a text file you can back up, version, and replicate.

NPM is the better choice specifically for people who want a GUI and never want to see a config file. That is a valid preference, and NPM executes on it well. But the overhead — more memory, a SQLite database holding your config, a single-maintainer project — is the cost of that convenience.

If you are reading this comparison and trying to decide, try Caddy first. If the Caddyfile feels uncomfortable, switch to NPM.

## Related

- [How to Self-Host Nginx Proxy Manager](/apps/nginx-proxy-manager/)
- [How to Self-Host Caddy with Docker](/apps/caddy/)
- [Traefik vs Caddy](/compare/traefik-vs-caddy/)
- [Nginx Proxy Manager vs Traefik](/compare/nginx-proxy-manager-vs-traefik/)
- [Best Self-Hosted Reverse Proxy](/best/reverse-proxy/)
- [Reverse Proxy Explained](/foundations/reverse-proxy-explained/)
- [SSL Certificates Explained](/foundations/ssl-certificates/)