Where do I save the generated Nginx config on Linux?

Save it in /etc/nginx/sites-available/yourdomain.com and symlink it to /etc/nginx/sites-enabled/ (e.g. ln -s /etc/nginx/sites-available/yourdomain.com /etc/nginx/sites-enabled/).

How do I test my Nginx configuration before reloading?

Run sudo nginx -t in your Linux terminal. If the syntax is ok, reload safely with sudo systemctl reload nginx.

Does this config handle WebSocket connections?

Yes! Toggling the WebSocket option adds the required proxy_http_version 1.1, proxy_set_header Upgrade, and proxy_set_header Connection headers.

What SSL certificate paths does it default to?

It defaults to standard Certbot / Let’s Encrypt certificate paths: /etc/letsencrypt/live/yourdomain/fullchain.pem and privkey.pem.

Are my domain names or server ports tracked?

Never. All configuration generation runs 100% locally inside your web browser.

Nginx Configuration Generator

Generate secure, production-ready Nginx server block configs with SSL, reverse proxy, and caching.

100% free
Private in browser
No signup
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Nginx Configuration Generator

Create production-ready Nginx reverse proxy blocks with SSL redirects and security headers.

Server Configuration

Domain Name

Backend Proxy Port

Max Upload (MB)

Enable HTTPS / SSL (Let's Encrypt redirect)Enable WebSocket Upgrades (Upgrade/Connection)Enable Gzip CompressionEnable OWASP Security Headers

Generated Nginx Config

server {
    listen 80;
    listen [::]:80;
    server_name api.example.com www.api.example.com;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name api.example.com www.api.example.com;

    # SSL Certificates (Certbot / Let's Encrypt)
    ssl_certificate /etc/letsencrypt/live/api.example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/api.example.com/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;

    client_max_body_size 25M;

    # Security Headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "no-referrer-when-downgrade" always;

    # Gzip Compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied any;
    gzip_types text/plain text/css text/xml application/json application/javascript application/xml+rss;

    location / {
        proxy_pass http://127.0.0.1:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        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;
        proxy_cache_bypass $http_upgrade;
    }
}

Total Lines: 46 (Paste into /etc/nginx/sites-available/)

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About Nginx Configuration Generator

Generate secure, production-ready Nginx server block configs with SSL, reverse proxy, and caching. Use this free client-side tool on TheToolss with zero installation and complete privacy.

How to use Nginx Configuration Generator

Enter your domain name (e.g., example.com) and upstream backend port.
Toggle HTTPS / SSL redirect and enter certificate file locations.
Enable WebSocket support, Gzip compression, and security headers as needed.
Copy the generated server block and paste into /etc/nginx/sites-available/.

Key features

Reverse proxy configuration with Host, X-Real-IP, and X-Forwarded-Proto headers
Automated HTTP to HTTPS permanent 301 redirection
WebSocket upgrade header rules (Connection and Upgrade proxy variables)
Built-in Gzip text compression settings for optimal asset delivery
Modern security headers (X-Frame-Options, X-Content-Type-Options, X-XSS-Protection)

Frequently asked questions

Where do I save the generated Nginx config on Linux?: Save it in /etc/nginx/sites-available/yourdomain.com and symlink it to /etc/nginx/sites-enabled/ (e.g. ln -s /etc/nginx/sites-available/yourdomain.com /etc/nginx/sites-enabled/).
How do I test my Nginx configuration before reloading?: Run sudo nginx -t in your Linux terminal. If the syntax is ok, reload safely with sudo systemctl reload nginx.
Does this config handle WebSocket connections?: Yes! Toggling the WebSocket option adds the required proxy_http_version 1.1, proxy_set_header Upgrade, and proxy_set_header Connection headers.
What SSL certificate paths does it default to?: It defaults to standard Certbot / Let’s Encrypt certificate paths: /etc/letsencrypt/live/yourdomain/fullchain.pem and privkey.pem.
Are my domain names or server ports tracked?: Never. All configuration generation runs 100% locally inside your web browser.