How do I use the Dockerfile Generator?

Select your application type (Node.js, Python, Go, Java, Rust, or Static). Set the base image version and exposed port. Toggle multi-stage build, non-root user, and health check options. Click Generate Dockerfile. Copy the Dockerfile and .dockerignore to your project root.

Is the Dockerfile Generator free?

Yes, the Dockerfile Generator is completely free. It runs entirely in your browser with no signup, no download, and no data sent to any server.

🐳

generator

Dockerfile Generator

Generate production-ready Dockerfiles for Node.js, Python, Go, Java, Rust, and static sites with multi-stage builds.

dockerfile generatordocker configcontainer setupdocker build

Dockerfile Generator

Generate Dockerfiles for common application stacks. Choose your runtime, configure settings, and get a production-ready Dockerfile.

Application Type

Version / Tag

Exposed Port

Multi-stage build Run as non-root user Generate .dockerignore Add health check

How to use

How to Use the Dockerfile Generator

1 Select your application type (Node.js, Python, Go, Java, Rust, or Static).
2 Set the base image version and exposed port.
3 Toggle multi-stage build, non-root user, and health check options.
4 Click Generate Dockerfile.
5 Copy the Dockerfile and .dockerignore to your project root.

A multi-stage build uses separate stages for building and running, resulting in much smaller production images. The build stage includes compilers and dev dependencies, while the production stage only contains the runtime and compiled output.

Running as a non-root user is a security best practice that prevents container escape attacks. The .dockerignore file prevents unnecessary files (node_modules, .git, etc.) from being sent to the Docker daemon, speeding up builds and reducing image size.

More Generator tools