gitignore.io

gitignore.io is an open-source service and codebase that generates ready-to-use .gitignore files tailored to your project’s stack. It aggregates community-maintained templates for programming languages, frameworks, IDEs, operating systems, and tooling, and then composes them into a single file on demand. You can access it from a clean web UI, a simple REST API, or the command line, making it easy to script into new-project scaffolds and automation. The generator accepts multiple technologies in one request, normalizes duplicates, and orders rules sensibly so the result is readable and effective. Templates are versioned and updated over time as tools evolve, helping teams avoid accidentally committing build artifacts, credentials, caches, and other noisy files. The repository includes documentation, example invocations, and contribution guidelines so users can add or refine templates.