Gitignore Generator

Gitignore Generator is a web-based tool that creates production-ready .gitignore files based on your technology stack. Select from 54 categories spanning operating systems, IDEs, programming languages, frameworks, build tools, and more — or use a preset for popular stacks like Next.js, Spring Boot, Flutter, and Python.

1. 1.Select categories from the grouped checklist, or pick a preset (e.g., "Next.js App").
2. 2.Optionally paste or upload an existing .gitignore and choose a merge strategy (Smart, Append, Overwrite).
3. 3.Add any custom patterns you need in the custom input section.
4. 4.Preview the output in the right panel — switch between Raw and Diff view.
5. 5.Click Copy or Download to get your .gitignore file.

• •54 categories with 500+ curated patterns from real-world projects.
• •9 ready-made presets for popular technology stacks.
• •Smart merge that preserves existing patterns and skips duplicates.
• •Diff view to see exactly what will be added.
• •Custom pattern input with automatic deduplication.
• •100% client-side — your data never leaves the browser.
• •Session persistence — your selections are saved automatically.