Generate a production-ready Dockerfile in seconds. Choose your base image, add your build details, then copy or download the result — free, with no sign-up needed.
Your Dockerfile will appear here.
How to Use
- Choose a base image for your app.
- Fill in the working directory, install and start commands.
- Add environment variables, one KEY=value per line.
- Click Generate Dockerfile, then copy or download it.
Key Features
- Popular base images for Node, Python, Java, PHP, Go and more.
- Install, build and start commands included automatically.
- Environment variables and exposed ports supported.
- Copy to clipboard or download as a Dockerfile.
- 100% private — everything runs in your browser.
FAQs
Is this dockerfile generator free?
Yes. It is completely free with no sign-up and no limits.
What is a Dockerfile?
A Dockerfile is a text file of instructions that Docker uses to build an image of your application.
Where do I put the generated file?
Save it with the exact name Dockerfile (no file extension) in your project’s root folder.
Is my data stored anywhere?
No. Everything runs in your browser and nothing you enter is sent or stored.
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