📖 What is Nginx Config Generator?
Nginx Config Generator creates Nginx server configuration blocks. Set up virtual hosts, reverse proxy to backend services, SSL/TLS termination, caching directives, security headers and gzip compression. Get ready-to-paste configuration that follows Nginx best practices. Everything runs in your browser.
💡 Example
Input
Domain: example.com
Proxy to: localhost:3000
SSL: Yes
Gzip: Yes
Output
server {
listen 443 ssl;
server_name example.com;
ssl_certificate /etc/ssl/cert.pem;
location / {
proxy_pass http://localhost:3000;
}
}
🛠️ Common Use Cases
- Setting up reverse proxy to Node.js, Python or Go backends
- Configuring SSL/TLS termination
- Adding security headers (HSTS, CSP, X-Frame-Options)
- Setting up gzip compression and browser caching
- Creating virtual host configurations for multiple domains
📝 Key Nginx Directives
server_name — domain(s) this server block handleslisten — port and protocol (80, 443 ssl)location — URL path matching rulesproxy_pass — forward requests to backend serverssl_certificate / ssl_certificate_key — TLS certificate filesgzip on — enable response compression
⚠️ Common Mistakes
- Missing trailing slash in proxy_pass —
proxy_pass http://backend/ strips the location prefix; without the slash it passes the full path - No upstream health checks — backends can go down. Use upstream blocks with multiple servers for redundancy.
- Forgetting to reload — after config changes, run
nginx -t then nginx -s reload
❓ Frequently Asked Questions
How do I test my Nginx config? ▾
Run nginx -t to check syntax before reloading. It validates the config without restarting the server.
What is the difference between Nginx and Apache? ▾
Nginx uses an event-driven architecture (better for concurrent connections). Apache uses a process-per-request model. Nginx is preferred for reverse proxy and static content.
How do I set up HTTPS? ▾
Add ssl_certificate and ssl_certificate_key directives pointing to your TLS certificate files. Use Let's Encrypt certbot for free certificates.
Is my data private? ▾
Yes — all processing runs entirely in your browser. Your data is never sent to any server.
Is this tool free? ▾
Completely free — no login, no usage limits, works offline once loaded.
Yes — completely free, no login required, no usage limits.
Is my data private? ▾
Yes — all processing runs in your browser. Your data is never sent to any server.
Does it work offline? ▾
Yes — once the page is loaded, the tool works without an internet connection.