Dockerfile Generator
Generate a starter Dockerfile for your language and framework.
A sensible container starting point
Writing a Dockerfile from a blank file means remembering the base image, the working directory, how to install dependencies, and how to run the app — familiar once you know it, fiddly when you are starting or switching stacks. This generates a sensible starter Dockerfile for your language and framework, following the common patterns, so you have a working base to adapt rather than a blank page.
Choose your stack and a starter Dockerfile is produced.
Adapt it, and mind the good practices
A generated Dockerfile is a starting point to tailor to your project. A few practices are worth carrying through: order the steps so dependencies install before you copy your code, which lets Docker cache that slow layer between builds; use a specific base image tag rather than latest for reproducibility; and keep the final image lean, often with a multi-stage build. Getting a correct base quickly, then refining it, beats assembling one from memory and debugging the syntax.
Dockerfile Generator FAQ
What does the generated Dockerfile include?
A sensible base image, working directory, dependency installation and run command for your chosen stack, ready to adapt.
What should I improve on the starter?
Order steps so dependencies cache well, pin a specific base image tag rather than latest, and keep the final image lean.
Is anything uploaded?
No. The file is generated in your browser.