Dockerfile Generator
Describe your stack in plain English — language, framework, package manager, port, any special needs — and get a production-ready Dockerfile. Multi-stage build, official base images, non-root user, frozen lockfiles, correct EXPOSE, and a matching .dockerignore block. AI-powered, with framework-specific correctness (Next.js standalone, Python uv, pnpm, Go static binary).
Output conventions
- • Multi-stage build (build + runtime)
- • Official base images (alpine/slim where possible)
- • Runs as non-root user
- • Frozen lockfile installs (npm ci, pnpm --frozen-lockfile)
- • EXPOSE with your port
- • .dockerignore block appended at the bottom
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Frequently Asked Questions
- Which stacks are supported?
- Any stack you can describe. Tested well on: Next.js (standalone + standard), Node/Express, FastAPI, Django, Flask, Rails, Go (static binary), Rust, Elixir/Phoenix, Java/Spring, .NET. The key is to include package manager (npm/pnpm/yarn/uv/poetry) and port.
- Does it follow best practices?
- Multi-stage builds, official minimal base images (alpine/slim/distroless where appropriate), non-root USER, frozen lockfiles (npm ci, pnpm --frozen-lockfile, uv pip install --no-deps), and .dockerignore. Healthchecks where obviously useful.
- Can I use the output as-is?
- Review first. It's production-shaped but you should verify the base image tag (we default to recent stable versions), confirm your entry point matches, and check that any env vars your app expects are either in the Dockerfile or documented. Docker syntax is rarely wrong; your app's runtime expectations need your eyes.
- What about multi-container setups?
- This tool generates a single Dockerfile. For multi-container setups, generate each Dockerfile separately and wire them together in a docker-compose.yml. A docker-compose generator is on the roadmap.
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About Dockerfile Generator
Describe your stack (Next.js, FastAPI, Go, Node, etc.), get a multi-stage, non-root, production-ready Dockerfile with .dockerignore. Free, no login. This AI-backed tool sends your input to MarkdownMe's capped AI endpoint to generate the result. You choose whether we keep it to improve the tools. See the privacy page. No account is required. MarkdownMe provides free, fast, and reliable Markdown tools for developers, writers, and anyone who works with Markdown.