Build .gitignore

Create a .gitignore from language, editor, OS, and build-output patterns.

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Tool.gitignore Builder
Input
Output
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Preview

How it works

Selected patterns are combined into grouped .gitignore text with comments and blank lines. Duplicate patterns are removed while negation lines retain their order.

  • Template groups cover common generated files.
  • Repository-specific outputs remain optional.

Worked example

Node.js + Docker project
Build a .gitignore for a Node.js project with Docker support, dependencies, build output, env files, IDE, and OS patterns
Input
											Node modules: true
Dist: true
Env: true
Logs: false
Coverage: false
Ide: true
Os: true
Cache: false
Docker: true
Terraform: false
Custom:
Output
												# Generated .gitignore

# Dependencies
node_modules/
bower_components/

# Build output
dist/
build/
.next/
out/
*.tsbuildinfo

# Environment
.env
.env.local
.env.*.local

# IDE
.idea/
.vscode/
*.swp
*.swo
*.iml

# OS
.DS_Store
Thumbs.db
Desktop.ini

# Docker
docker-compose.override.yml
.docker/

When to use this

New repositories, editor changes, and monorepo templates create ignore files.

Edge cases

  • Ignoring .env does not remove a file already tracked.
  • Negation order controls whether a path is re-included.
  • A trailing slash pattern matches directories only.

References