.gitignore Builder

Toggle checkboxes to build a .gitignore file for your project.

freeworks offlinenothing uploaded
Input
Output
—

About .gitignore builder

.gitignore Builder works entirely in the browser tab. Open it, use it, close it. Nothing about the session outlives the page.

Nothing here is stored between visits. Reload the page and you start from an empty box again.

You will find it under Git, alongside 7 other tools for the same sort of job.

Covers node_modules, build output, env files, IDE settings, OS files, Docker, Terraform, and custom patterns.

How to use it

01
Start it
Every control is on the tool itself. Keyboard shortcuts, where there are any, are listed beside it.
02
Watch it run
It updates in the page as you go. Nothing is sent anywhere, so it keeps working with the network off.
03
Close when done
Nothing is stored between visits. Reloading gives you a clean start rather than picking up where you left off.

Examples

Node.js + Docker project
Build a .gitignore for a Node.js project with Docker support, dependencies, build output, env files, IDE, and OS patterns
Input
nodeModules: true
dist: true
env: true
logs: false
coverage: false
ide: true
os: true
cache: false
docker: true
terraform: false
custom:
Output
# Generated .gitignore

# Dependencies
node_modules/
bower_components/

# Build output
dist/
build/
.next/
out/
*.tsbuildinfo

# Environment
.env
.env.local
.env.*.local

# IDE
.idea/
.vscode/
*.swp
*.swo
*.iml

# OS
.DS_Store
Thumbs.db
Desktop.ini

# Docker
docker-compose.override.yml
.docker/

Questions

Does .gitignore Builder work offline?+

Yes. It is JavaScript running in this tab, so once the page has loaded it needs nothing further from the network. Put the machine in flight mode and it carries on. Nothing you do here is sent anywhere, because there is nowhere for it to go.

Does it remember anything between visits?+

No. Reload the page and it starts from nothing. There is no account, no saved state and no cookie holding your last session. That is a deliberate trade: it cannot lose your data because it never keeps any.

Is it accurate?+

Timing comes from performance.now(), the high resolution clock the browser provides, rather than from setInterval, which drifts by a few milliseconds every tick and compounds over minutes. What can still shift things is the browser throttling a tab in the background, so leave it visible if the timing matters.

Does it make a sound?+

Where a sound makes sense, it is generated with the Web Audio API rather than loaded as a file, so there is nothing to download and nothing to block. Browsers refuse to start audio until you have interacted with the page, which is why the first press is what switches it on.

Can I use .gitignore Builder on a phone?+

Yes. The controls are sized for touch and the layout collapses to one column on a narrow screen. Bear in mind that a phone locking its screen will suspend the page, and timing stops with it.