Docker Tools
Docker Tools
Lint a Dockerfile for best practices: pin image versions, avoid running as root, combine RUN layers, use --no-install-recommends, detect secrets in ENV, and more; generate a best-practice multi-stage Dockerfile for Node.js, Python, Go, .NET, Java, or static/Nginx sites; or build a docker-compose.yml visually from services, ports, volumes, and environment variables.
Paste your Dockerfile and click Lint.
Lint your Dockerfile for best practices, security issues, and optimization opportunities.
Docker Tools
Lint a Dockerfile for best practices: pin image versions, avoid running as root, combine RUN layers, use --no-install-recommends, detect secrets in ENV, and more; generate a best-practice multi-stage Dockerfile for Node.js, Python, Go, .NET, Java, or static/Nginx sites; or build a docker-compose.yml visually from services, ports, volumes, and environment variables.
Common uses
- Lint a Dockerfile for layer inefficiencies
- Check if a Dockerfile runs processes as root
- Generate a multi-stage Dockerfile for a Node.js app
- Generate a Dockerfile for a static site served by Nginx
- Build a docker-compose.yml with multiple services
- Generate a .dockerignore for a Python project
Frequently asked questions
Can I use Docker Tools to lint a Dockerfile for layer inefficiencies?
Yes. Docker Tools can lint a Dockerfile for layer inefficiencies, directly in your browser.
Can I use Docker Tools to check if a Dockerfile runs processes as root?
Yes. Docker Tools can check if a Dockerfile runs processes as root, directly in your browser.
Can I use Docker Tools to generate a multi-stage Dockerfile for a Node.js app?
Yes. Docker Tools can generate a multi-stage Dockerfile for a Node.js app, directly in your browser.
Is my data uploaded to a server?
No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.