Generate clean, production-ready .gitignore files by combining technology templates for languages, frameworks, operating systems, and developer tools. Fast, deterministic, and conflict-free.
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Select technologies, frameworks, or environments on the left to instantly generate a clean, deterministic .gitignore file.
Preconfigured templates with verified ignore patterns and dependency rules.
In Git version control, untracked files are candidates for being committed whenever you stage changes. A .gitignore file tells Git exactly which files, directories, and filename patterns should remain excluded from tracking. This prevents accidental commits of massive dependencies, sensitive credentials, compiled binaries, and machine-specific system caches.
Local configuration files such as .env, .env.local, and private SSH keys must never enter source control to avoid credential leaks.
Package manager directories like node_modules/, vendor/, or Python virtual environments (.venv/) bloat repositories and should be installed from manifests.
Intermediate compiler artifacts such as dist/, target/,*.class, and *.dll are reproducible outputs and do not belong in Git history.
Modern software architectures rarely rely on a single language or tool. A typical full-stack engineering stack involves a language runtime (like Node.js or Python), a framework (like Next.js or Spring Boot), containerization (Docker), continuous integration tools, and developers operating across macOS, Windows, and Linux with different IDEs.
A .gitignore generator allows you to select every technology used in your stack and synthesizes them into one unified, production-ready ignore file. Instead of manually copy-pasting disparate snippets from blog posts or multiple repositories—which often introduces duplicate patterns and broken syntax—DotGitIgnore deterministically merges rules, deduplicates identical lines, and outputs a normalized .gitignore ready to copy or download.
Follow this five-step workflow to generate and deploy your project .gitignore:
Search or select technologies from the generator workstation across 321 verified templates.
Inspect categorized pattern previews and rule counts in the live syntax viewer.
Click Copy to place rules onto your clipboard or Download to save a clean .gitignore file.
Save the file in your repository root directory as .gitignore.
If files were already committed before adding rules, run git rm --cached to stop tracking them.
Representative ignore patterns for top programming languages and frameworks:
node_modules/ dist/ npm-debug.log* .env .env.local
__pycache__/ *.py[cod] .venv/ dist/ *.egg-info/
target/ *.class *.jar *.war .sts4-cache/
[Ll]ibrary/ [Tt]emp/ [Oo]bj/ [Bb]uild/ *.csproj
.terraform/ *.tfstate *.tfstate.* crash.log override.tf
*.pid docker-compose.override.yml .docker/ *.tar
Git pattern matching uses glob-style syntax to match paths against repository files:
# commentLines beginning with a hash symbol # are treated as comments and ignored by Git.
temp/A trailing forward slash forces the pattern to match only directories, not files with the same name.
*.logAn asterisk matches zero or more characters in a single path segment. This ignores any file ending with .log.
/buildA leading slash anchors the pattern to the root directory where the .gitignore file is located.
**/logsA double asterisk matches directories recursively across any depth in the repository file tree.
!important.logAn exclamation mark negates a pattern, re-including a file previously ignored (unless its parent directory is ignored).
Engineered specifically for developers who demand clean, deterministic version control files:
Pure merging logic eliminates exact duplicates while preserving intentional negation rules and file order.
Official upstream GitHub templates paired with curated modern supplementary stacks (Vite, Astro, Svelte, Claude Code).
Client-side generation with zero network lag, no external tracking scripts, and instant one-click copy and download.
A clean, distraction-free developer tool interface with seamless Dark Mode and Light Mode support.
Common questions about .gitignore configuration, usage, syntax, and Git tracking mechanics:
A .gitignore file is a plain text file placed in your Git repository root. It specifies intentionally untracked patterns and files that Git should ignore, preventing build outputs, local secrets, package directories, and temporary system files from being committed to source control.
Place your .gitignore file in the root directory of your project (e.g., /my-project/.gitignore). When placed in the root, its pattern rules apply recursively to all files and subdirectories across the entire repository. You can also place additional .gitignore files in subdirectories if specific rules apply only to those paths.
Yes. Modern projects almost always combine multiple technologies (e.g., Python + React + Docker + macOS + VS Code). DotGitIgnore allows you to select as many technology templates as you need, automatically resolving overlaps and deduplicating identical rules into a single clean file.
To ignore an entire directory and all of its contents, append a trailing forward slash to the directory name in your .gitignore file (e.g., node_modules/ or build/). A pattern without a trailing slash matches both files and directories with that name, whereas a trailing slash restricts the match strictly to directories. Read the Ignoring Directories Guide.
Adding a file to .gitignore does not remove it from Git if it was already tracked in previous commits. To stop tracking an existing file without deleting it from your local disk, run 'git rm --cached <file>' (or 'git rm -r --cached <directory>/' for folders), and then commit the change. Read the Ignoring Tracked Files Guide.
Yes. The output generated by DotGitIgnore is standard Git configuration text. You can freely add project-specific paths, customize environment-specific secrets, add comments, or toggle individual rules directly within the generator or in your text editor after downloading.
Create a file named .gitignore in your repository root, add relative file or directory pattern rules you want Git to exclude (such as dist/, .env, or *.log), and commit the .gitignore file to Git with 'git add .gitignore && git commit -m "Add .gitignore"'. From that point on, Git will ignore newly created untracked files matching those rules.
During working tree inspections (such as 'git status' or 'git add .'), Git checks untracked files against pattern rules defined in your .gitignore hierarchy. If an untracked path matches an ignore pattern and is not negated by a subsequent '!' pattern, Git skips indexing that file and omits it from untracked file listings.
A .gitignore file instructs Git which untracked files and directories to exclude from version control. It prevents temporary caches, compiled artifacts, third-party packages, operating system metadata (.DS_Store), and secret credentials from cluttering commits or being pushed to remote repositories. Browse verified technology templates.
Yes. In almost all circumstances, .gitignore should be committed to your repository so that ignore rules are shared consistently across all team members and CI/CD pipelines. For personal files unique to your local workstation (like local IDE preferences), use .git/info/exclude or a global gitignore instead.
The most common reason is that the file is already being tracked by Git. .gitignore only prevents untracked files from being staged; it never untracks files that were previously committed. To fix this, untrack the file using 'git rm --cached <file>' and commit the change. Other common causes include pattern syntax errors or leading slashes that restrict matching to the wrong directory level.
If .gitignore has already been committed to the repository, adding .gitignore to itself has no effect because Git already tracks it. If you add .gitignore to itself before ever staging it, Git will ignore the .gitignore file, preventing you from committing and sharing ignore rules with team members. In practice, you should never ignore .gitignore.
You can test whether a file is ignored using the command 'git check-ignore -v <path>'. If the path is ignored, Git outputs the matching .gitignore file path, line number, and pattern. You can also run 'git status --ignored' to display all currently ignored files in your working directory.
To correctly use .gitignore, create it before making your initial project commit, group rules by logical category (dependencies, build outputs, local secrets), commit .gitignore to source control, and keep machine-specific tools in your personal global gitignore. Using DotGitIgnore helps ensure you start with clean, deduplicated rules tailored to your exact stack.
Include build outputs (dist/, build/), dependency directories (node_modules/, vendor/), environment credentials (.env*), compiled binaries (*.class, *.o), and runtime logs. Never ignore source code, configuration templates (such as .env.example), or package lockfiles (package-lock.json, Cargo.lock) required for reproducible builds. Explore Node.js template rules.
Yes. Git supports multiple .gitignore files across your directory hierarchy. Patterns in a subdirectory's .gitignore file apply only to that directory and its children, taking precedence over root patterns for matching paths. This is especially useful in monorepos housing multiple languages or microservices.
To ignore a specific file anywhere in the repository, add its filename to .gitignore (e.g., secret.txt). To restrict the rule strictly to the repository root, prefix it with a forward slash (e.g., /secret.txt). To ignore a specific nested file, specify its relative path from the root (e.g., config/credentials.json).
Add .env and local variants (such as .env.local and .env.*.local) to .gitignore to prevent leaking API keys and database credentials. Always commit a sanitized .env.example file containing placeholder values so collaborators know which environment variables are required without exposing secrets.
.gitignore is tracked in version control and shared across all repository contributors, making it ideal for project-wide rules (such as build output and dependencies). In contrast, .git/info/exclude is a local configuration file stored inside .git/ that is never committed or pushed, making it ideal for private, machine-specific ignore patterns.
An exclamation mark (!) negates a pattern to re-include a file that was matched by an earlier ignore rule (e.g., *.log followed by !important.log). Note that Git cannot re-include a file if its parent directory is already excluded, because Git does not traverse inside ignored directories. Read the full .gitignore Syntax Guide.
You can force Git to stage a file that matches an ignore pattern by passing the -f (or --force) flag: 'git add -f path/to/file'. Once staged and committed, the file remains tracked by Git even if it matches a .gitignore rule, until it is explicitly untracked with 'git rm --cached'.