Gitignore Pattern Tester
Supports common simple patterns such as folder ignores, wildcard file extensions, anchored paths, and negated rules.
What the Gitignore Pattern Tester does
Supports common simple patterns such as folder ignores, wildcard file extensions, anchored paths, and negated rules. It is not a full Git implementation Adjust the controls and the preview updates immediately, so you can dial in exactly what you want and copy the result straight into your project — no build step and no account.
One thing to keep in mind: Later negated patterns starting with ! can mark a previously ignored path as included again, matching the common mental model for simple files.
Private and in your browser
Everything runs locally in your browser. Your input is never uploaded, so the tool stays fast and works offline, and the copy and download buttons always use the current result shown in the output panel.
Frequently Asked Questions
What does the Gitignore Pattern Tester do?
Supports common simple patterns such as folder ignores, wildcard file extensions, anchored paths, and negated rules. It is not a full Git implementation.
What should I keep in mind?
Later negated patterns starting with ! can mark a previously ignored path as included again, matching the common mental model for simple files
Does it upload my input?
No. The Gitignore Pattern Tester runs entirely in your browser — your input is never uploaded, and it keeps working offline once the page has loaded.
Practical utilities for front-end design and implementation work.