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Docker Ignore Generator

Generate .dockerignore files from language-specific presets. Choose from Node.js, Python, Go, Rust, Java, Ruby, .NET, or PHP presets with toggleable categories for dependencies, build artifacts, IDE files, environment files, tests, CI/CD, and logs. Add custom patterns and optional comments. Runs entirely in your browser — your data never leaves your machine.

docker dockerignore devops containers generator

Published May 31, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Select a language preset (Node.js, Python, Go, etc.) to load common ignore patterns organized by category. Toggle individual categories on or off, add custom patterns, and generate a complete .dockerignore file with optional section comments.

Features

  • 8 language presets: Node.js, Python, Go, Rust, Java, Ruby, .NET, PHP
  • 10 categories: version control, dependencies, build artifacts, IDE files, environment, documentation, tests, Docker files, CI/CD, logs
  • Category toggles: enable or disable each category independently
  • Custom patterns: add your own patterns at the end
  • Comments: optional section comments for organization
  • Header: optional descriptive header comment
  • Pattern count: shows total number of patterns in output
  • Custom mode: start from scratch with only your own patterns
  • Private: all computation runs in your browser — no data transmitted

Use Cases

  • Quickly generating .dockerignore files for new Docker projects
  • Optimizing Docker build context size by excluding unnecessary files
  • Learning which files to exclude from Docker builds for different languages
  • Standardizing .dockerignore patterns across team projects
  • Auditing existing .dockerignore files for missing patterns