Dockerfile Generator
Pick your stack to get a Dockerfile with dependency-layer caching, a multi-stage build, a non-root runtime user and an optional health check, plus a matching .dockerignore. Leave optional fields empty for sensible defaults.
About the Dockerfile Generator
The Dockerfile Generator builds a Dockerfile and a matching .dockerignore for Node.js (npm, yarn or pnpm, with an optional build stage), Python (plain, Flask, FastAPI or Django), Java with Maven or Gradle, Go, .NET, Rust and static sites on nginx. It uses multi-stage builds, dependency-layer caching, a non-root runtime user and an optional HEALTHCHECK, and validates every field so nothing can inject extra instructions.
How to use the Dockerfile Generator
- Pick your language or stack and, if you like, a version and port.
- Set the optional start command, build step or health check path.
- Click Generate Dockerfile, then copy or download both files.
Frequently asked questions
Is the generated Dockerfile ready for production?
It follows common practice, but it cannot see your project. It expects files such as requirements.txt, package-lock.json or pom.xml, so review it and test a build with your own code before relying on it.
Which stacks are supported?
Node.js, Python, Java (Maven and Gradle), Go, .NET, Rust and static sites. Go images end in distroless, and stacks whose runtime image has no shell or curl skip the HEALTHCHECK with a note.
Are my data stored when I use the Dockerfile Generator?
The text you submit is processed in memory to produce the result and is not saved. Like any web server, Code Converter logs basic visit data (page, IP address and browser) but never the content you paste.
Is the Dockerfile Generator free, and can I call it from a script?
It is free and needs no account or signup. The same tool is available as a REST endpoint at POST /api/dockerfile-generator; see the API documentation for the fields and examples.