Caddyfile to Nginx Configuration Converter

Convert Caddyfile directives into production-ready Nginx server and reverse proxy configs instantly in your browser.

At a glance

Caddyfile to Nginx Configuration Converter is a free developer utility that transforms Caddyfile v2 directives into production-grade Nginx server blocks. It maps site addresses, reverse_proxy upstream targets, static file roots, SPA try_files, headers, and redirects into standard Nginx syntax completely client-side in browser memory with zero data transmission.

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100% Client-Side Caddyfile to Nginx Converter

Zero Server Uploads

Transform Caddyfile v2 directives into production-ready Nginx server blocks, proxy_pass configurations, static file roots, and SPA fallbacks instantly in browser memory.

Local Sandbox
Presets:
0 lines • 0 chars
Nginx Conversion Options
Waiting for input
Server Blocks 0
Proxy Directives 0
Proxy Headers Enabled (4)

Why Use This Caddyfile to Nginx Configuration Converter?

100% Client-Side Privacy: All Caddyfiles and Nginx configurations are processed strictly in browser memory.
Automatic Proxy Headers: Injects essential production headers (Host, X-Real-IP, X-Forwarded-For, X-Forwarded-Proto) automatically.
Subpath & Wildcard Matchers: Cleanly translates Caddy /api/* matchers into Nginx location /api/ blocks.
SPA History Fallback: Translates Caddy try_files {path} {path}/ /index.html into Nginx try_files $uri $uri/ /index.html;.
Gzip & Header Translation: Maps encode gzip and header directives into idiomatic Nginx gzip and add_header syntax.

How to Use Caddyfile to Nginx Configuration Converter

1

Input Caddyfile Configuration

Paste your Caddyfile v2 site block or reverse_proxy directive, or load one of our quick presets.

2

Configure Conversion Options

Toggle proxy headers injection, gzip compression blocks, and customize default listen ports.

3

Copy or Download Nginx Config

Copy the generated Nginx server configuration or download it as a ready-to-use nginx.conf file.

Converting Caddyfile Reverse Proxy to Nginx Configuration

Demonstrates converting a standard Caddyfile v2 reverse proxy block into an idiomatic Nginx server block with production proxy headers.

Caddyfile v2 (Caddyfile) Source 
example.com {
    reverse_proxy localhost:3000
}
Nginx Configuration (nginx.conf) Processed 
server {
    listen 80;
    server_name example.com;

    location / {
        proxy_pass http://localhost:3000;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

Technical Specifications & Engine Details

Technical specifications and engine details for Caddyfile to Nginx Configuration Converter
Specification Details
Supported Formats CADDYFILE, CADDY, TEXT → CONF, NGINX, TEXT
Execution Mode 100% Client-Side In-Browser (client)
Browser Requirements Modern browser with JavaScript enabled.
Performance Constraints 100% Client-Side. Runs locally in browser JavaScript memory.
Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

All Caddyfile parsing and Nginx configuration generation execute client-side in browser memory. Zero server infrastructure data leaves your device.

Frequently Asked Questions

Does this tool upload my Caddyfile to any server?
No. All conversion logic runs 100% client-side in your browser's JavaScript sandbox. No upstream addresses, hostnames, or configurations ever leave your computer.
How are Caddy placeholders converted to Nginx variables?
Common Caddy v2 placeholders like {path}, {uri}, {host}, and {remote_host} are automatically mapped to their Nginx equivalents: $uri, $request_uri, $host, and $remote_addr.
Why are proxy headers added automatically?
In Caddy, reverse_proxy includes standard proxy headers automatically. Nginx requires explicit proxy_set_header directives, which this converter generates to maintain parity.
Can it convert Single Page Application (SPA) configurations?
Yes. It translates Caddy try_files {path} {path}/ /index.html into Nginx try_files $uri $uri/ /index.html along with static root and index directives.

Methodology

This tool runs entirely in your browser. The example above shows a representative input and the result it produces.

Last updated .

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