What does this tool do?
Gitignore Builder lets you assemble a .gitignore file by toggling ready-made rule sets for Node, Python, Java, React, Go, Rust, Docker, macOS, Windows and VSCode, then adding your own custom lines. It is handy for developers juggling several technologies in one repository.
How to use it
- Enter your configuration details.
- Review the generated output.
- Copy the ready-to-use code or file.
Combine presets
Click the labels at the top to switch technologies on or off; Node, macOS and VSCode are selected by default. Each choice adds neatly grouped rules under its own heading, such as node_modules/, __pycache__/ or .DS_Store. When you pick several presets at once they appear as separate sections, each with its own # comment header, so the resulting file stays readable and easy to audit.
Add custom rules
For anything the presets do not cover, type your own patterns into the Custom rules box, for example *.bak, tmp/ or secrets/. These lines are appended at the end of the output under a # Custom heading. When you are happy with the result, hit Copy and paste the text into the .gitignore file at your project root. Everything runs in the browser.
Frequently asked questions
Can I select several languages and operating systems at the same time?
Yes. Toggle as many presets as you need, for example Python + Docker + Windows. Each one appears as its own labelled section in the output.
What do the lines starting with ! mean?
Lines like !.vscode/settings.json in the VSCode preset are negation patterns; they re-include specific files from a folder that would otherwise be ignored.
Is .gitignore Builder free?
Yes. .gitignore Builder and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. .gitignore Builder works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.