🔄 Nginx to Caddy Config Generator

// Paste Nginx config on the left to auto-generate Caddyfile

What Can the Nginx to Caddy Config Generator Do?

The Nginx to Caddy Config Generator is an online tool for DevOps engineers and developers that automatically converts Nginx server configuration blocks into Caddyfile format. When migrating from Nginx to Caddy, this tool saves you from manually rewriting configurations by generating clean Caddyfile configs with one click, including automatic HTTPS certificate handling.

Core Features

• Auto HTTPS: Caddy automatically provisions Let's Encrypt certificates — no manual SSL certificate path configuration needed
• Reverse Proxy Conversion: proxy_pass automatically converts to Caddy's reverse_proxy directive
• Rewrite Rule Conversion: Nginx rewrite rules automatically convert to Caddy's uri or redir directives
• Static File Serving: root and index directives convert to Caddy's root and file_server
• Header Handling: proxy_set_header automatically converts to Caddy's header_up directive

How to Use

1. Paste your Nginx configuration in the input box, or click "Load Example" for a demo; 2. Select auto HTTPS mode and output format; 3. The tool auto-generates Caddyfile config in real-time; 4. Click "Copy" to copy the config; 5. Save as Caddyfile and start the server with caddy run.

Use Cases

Case 1: Server Migration

When migrating from Nginx to Caddy, batch convert existing Nginx configs to Caddyfile for a quick web server switch.

Case 2: Auto HTTPS

Tired of manually configuring SSL certificates? Convert Nginx configs to Caddy and enjoy automatic HTTPS.

Case 3: Config Simplification

Caddyfile syntax is simpler than Nginx. Use this tool to convert complex Nginx configs into clean Caddyfiles.

Extended Knowledge

Caddy is a modern web server created by Matthew Holt, known for automatic HTTPS via the ACME protocol (auto-provisioning Let's Encrypt certificates). Caddyfile is Caddy's native config format with simple, intuitive syntax that significantly reduces code compared to Nginx. Caddy supports HTTP/3, reverse proxy, load balancing, static file serving, logging, and other common web server features. Caddy v2 is written in Go with performance close to Nginx while providing a better developer experience.