.gitignore Generator
Developer ToolsGenerate a ready-to-use .gitignore file for Node, Python, Java, and other stacks. Pick your languages, editors, and OS, then copy or download the file.
What is a .gitignore?
A .gitignore Generator builds a ready-to-use .gitignore file by combining standard ignore patterns for the languages, editors, and operating systems your project uses. Every Git repository needs one of these files to keep dependency folders, build artefacts, OS-specific clutter files, and local secrets out of version control — but writing one from scratch means remembering dozens of file patterns for each tool in your stack.
This generator handles that by letting you check off exactly what applies — Node.js, Python, Java, macOS, Windows, VS Code, and more — and combining the relevant patterns into one clean file. It pairs well with the .htaccess Generator and robots.txt Generator for setting up the other configuration files a new project typically needs.
How to use this .gitignore calculator
- Check the boxes for every language or framework your project uses — for example Node.js / npm or Python.
- Check the boxes for your operating system, such as macOS or Windows, so OS-specific clutter files are excluded.
- Check the boxes for any editors your team uses, like VS Code or IntelliJ / JetBrains IDEs.
- Leave Environment files and Log files checked unless you have a specific reason not to ignore them.
- Add any project-specific patterns in the Additional Patterns field, one per line.
- Copy the generated content and save it as a file named
.gitignorein your repository's root folder.
Formula & Methodology
The generator works by combining pre-defined pattern blocks for each option you select, rather than computing anything — it concatenates the relevant sections in a fixed order and appends your custom patterns at the end. Before: No.gitignorefile, or an incomplete one missing key entries like.envornode_modules/. After, with Node.js, macOS, and VS Code checked:# Node.js / npm node_modules/ npm-debug.log* ... # macOS .DS_Store ... # VS Code .vscode/* !.vscode/extensions.jsonSave this output as.gitignorein your project root, and Git will automatically apply every pattern listed.
Frequently Asked Questions
A .gitignore file tells Git which files and folders to exclude from version control, such as dependency folders, build output, and local environment files. Without it, a repository quickly fills up with files that don't belong in source control and that are different on every developer's machine.
Dependency folders like node_modules and build output like dist/ can be regenerated from your package manifest and source code, so committing them bloats the repository and creates unnecessary merge conflicts. Excluding them with .gitignore keeps the repository focused on actual source code.
Check every checkbox that applies to your project — for example Node.js and macOS together — and the generator combines all the selected patterns into one file with clearly labelled sections. This covers projects that mix a backend language, an operating system, and an editor in a single repository.
Yes — use the Additional Patterns field to add any extra file or folder patterns specific to your project, one per line. These are appended to the generated file under a separate Custom section so they're easy to find and edit later.
Including .env in your .gitignore prevents environment variable files — which often contain API keys, database passwords, and other secrets — from being accidentally committed and exposed in your Git history. This is one of the most important entries for avoiding leaked credentials.
No — the .gitignore file is generated entirely in your browser based on the checkboxes you select. Nothing about your project is sent to a server or stored anywhere.
This generator covers the most common languages, editors, and operating systems that the vast majority of projects need, in a single simple checklist. If you need a highly specific or unusual combination of templates, a dedicated template-matching tool may offer more granular options.
Yes — each project should have its own .gitignore tailored to the languages, tools, and editors actually used in that repository. Generate a fresh one for each new project rather than copying an old one that might be missing entries or include irrelevant ones.
Adding a pattern to .gitignore only stops new commits of matching files — it doesn't remove files already tracked by Git. Run `git rm --cached <file>` to untrack the file, then commit that change alongside your updated .gitignore.
Save the generated content as a file named exactly `.gitignore` (with the leading dot and no file extension) in the root folder of your Git repository. Git automatically picks it up — no additional configuration is required.
Also known as