Gitignore Merger

What is Gitignore Merger?

Gitignore Merger combines multiple .gitignore inputs and removes duplicate patterns. It is useful when projects, templates, operating-system rules, and editor configurations each provide their own ignore file and the repository needs one maintainable result.

How to use Gitignore Merger

Paste multiple .gitignore contents, merge them, and copy the cleaned result with duplicate patterns removed.

When is Gitignore Merger useful?

Gitignore Merger is useful when combining repositories, templates, or toolchains that each provide their own ignore rules.

Example

A practical example is merging Node.js and Python ignore files for a project that contains both environments.

Practical notes

Duplicates are safe to remove, but apparently similar patterns may have different scope because of slashes, negation, or directory context. Review the merged order carefully, especially where an exclamation rule intentionally re-includes a previously ignored path. Test representative paths with Git before committing the result.