Nginx Config Generator
Generate Nginx server block configurations visually. Configure reverse proxy, SSL/HTTPS, gzip compression, and security headers with one-click presets — 100% browser-based, no uploads.
How ZeroData protects your privacy
- ✓ No Uploads: Processing happens entirely via client-side JavaScript.
- ✓ No Storage: We do not have a database. We physically cannot save your data.
- ✓ No Tracking: We don't log what you process or track your inputs.
- ✓ Verifiable: Check your DevTools Network tab. You will see 0 outbound requests.
Visual Nginx Server Block Builder
Nginx powers over 34% of all websites and is the most popular reverse proxy server for modern web applications. Writing server block configurations from scratch requires memorizing dozens of directives — proxy_pass, proxy_set_header, ssl_protocols, gzip_types, and more. This visual generator eliminates the guesswork: pick a preset, toggle features, and get a production-ready config instantly.
After generating your config, use our Systemd Service Generator to create a service file for your upstream application, ensuring it starts automatically on boot.
Nginx Reverse Proxy for Application Servers
The most common Nginx use case is reverse proxying — forwarding incoming HTTP requests to a backend application running on a different port. Whether you're running Node.js on port 3000, Django/Gunicorn on port 8000, or a Docker container, the reverse proxy pattern is the same: Nginx listens on port 80/443 and forwards requests to your application while handling SSL termination, gzip compression, and static asset serving.
For Docker deployments, combine this tool with the Docker Compose Validator to verify your compose files, and the Docker env_file Mapper to manage environment variables cleanly.
Why Generate Nginx Configs Locally
Your Nginx configuration reveals sensitive infrastructure details: domain names, internal IP addresses, upstream application ports, and SSL certificate paths. Pasting these into an online tool exposes your server architecture to third parties. This generator runs entirely in your browser with zero network requests — your infrastructure stays private. For managing file permissions on your Nginx configuration files, use our Chmod Calculator.
How to Use the Nginx Config Generator
- Choose a preset matching your stack (Node.js, Django, Static, PHP, Docker).
- Enter your domain name and listen port.
- Toggle features like SSL, gzip, proxy headers, and WebSocket support.
- Review the generated nginx.conf in the output panel.
- Copy the config and save it to /etc/nginx/sites-available/ on your server.
Common Use Cases
- Setting up Node.js, Python, or Go applications behind an Nginx reverse proxy.
- Configuring SSL/HTTPS termination with Let's Encrypt certificates.
- Serving static websites with optimized gzip compression and caching headers.
- Configuring PHP-FPM with Nginx for WordPress or Laravel applications.
- Setting up Docker container reverse proxies with proper header forwarding.
Frequently Asked Questions
What is an Nginx server block?
An Nginx server block (equivalent to an Apache VirtualHost) defines how Nginx handles requests for a specific domain or IP. It contains directives for listen port, server name, root directory, proxy settings, and SSL certificates. Server blocks are stored in /etc/nginx/sites-available/ and symlinked to /etc/nginx/sites-enabled/.
How do I set up Nginx as a reverse proxy?
Enable the Reverse Proxy toggle in this generator, enter your upstream application address (e.g., http://127.0.0.1:3000 for a Node.js app), and the tool generates the proxy_pass directive along with recommended proxy headers like X-Real-IP and X-Forwarded-For. Save the output to /etc/nginx/sites-available/ and reload Nginx.
Should I enable gzip compression in Nginx?
Yes. Gzip compression reduces response sizes by 60-80% for text-based assets (HTML, CSS, JavaScript, JSON). This improves page load times and reduces bandwidth costs. The generated config includes optimized gzip settings with appropriate MIME types and compression level 6 (good balance of speed vs compression).
How do I add SSL to my Nginx configuration?
Enable the SSL / HTTPS toggle to generate a complete SSL configuration with automatic HTTP-to-HTTPS redirect, TLS 1.2/1.3 protocols, and Let's Encrypt certificate paths. After saving the config, run 'sudo certbot --nginx -d yourdomain.com' to obtain and install a free SSL certificate automatically.
Is this Nginx config generator safe to use?
Yes. This tool runs 100% in your browser using client-side JavaScript. No domain names, server IPs, or configuration details are sent to any server. Your infrastructure details stay entirely on your device.
Related Tools
Chmod Calculator
Visual Linux file permissions calculator with numeric mode, symbolic notation, and common presets.
CORS Header Generator
Generate CORS headers for Nginx, Apache, and Express.js with a visual builder. No data uploaded.
Docker Compose Validator
Validate and lint docker-compose.yml files in your browser. Detect unquoted ports, missing images, broken services, and YAML syntax issues locally.
Systemd Service Generator
Generate Linux systemd service unit files visually. Configure ExecStart, restart policies, and dependencies — 100% browser-based.
Docker Compose env_file Mapper
Convert .env files to Docker Compose YAML environment blocks. Array, dictionary, and variable substitution formats — 100% in your browser.
SSH Config Generator
Build SSH config file entries visually. Host aliases, identity files, jump hosts, and port forwarding — 100% browser-based.
Ansible Inventory Generator
Build Ansible inventory files visually in INI or YAML format. Add groups, hosts, and variables — 100% browser-based, no uploads.