Repomix

Pack your codebase into AI-friendly formats Use Repomix online! 👉 repomix.com Need discussion? Join us on Discord! Share your experience and tips Stay updated on new features Get help with configuration and usage Actions Status npm npm npm node codecov 📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. It is perfect for when you need to feed your codebase to Large Language Models (LLMs) or other AI tools like Claude, ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more.

🎉 New: Repomix Website & Discord Community!

• Try Repomix in your browser at repomix.com
• Join our Discord Server for support and discussion We look forward to seeing you there!

🌟 Features

• AI-Optimized: Formats your codebase in a way that's easy for AI to understand and process.
• Token Counting: Provides token counts for each file and the entire repository, useful for LLM context limits.
• Simple to Use: You need just one command to pack your entire repository.
• Customizable: Easily configure what to include or exclude.
• Git-Aware: Automatically respects your .gitignore files and .git/info/exclude.
• Security-Focused: Incorporates Secretlint for robust security checks to detect and prevent inclusion of sensitive information.
• Code Compression: The --compress option uses Tree-sitter to extract key code elements, reducing token count while preserving structure.

🚀 Quick Start

Using the CLI Tool >_

You can try Repomix instantly in your project directory without installation:

npx repomix

Or install globally for repeated use:

# Install using npm
npm install -g repomix
# Alternatively using yarn
yarn global add repomix
# Alternatively using Homebrew (macOS/Linux)
brew install repomix
# Then run in any project directory
repomix

That's it! Repomix will generate a repomix-output.xml file in your current directory, containing your entire repository in an AI-friendly format. You can then send this file to an AI assistant with a prompt like:

This file contains all the files in the repository combined into one.
I want to refactor the code, so please review it first.

Repomix File Usage 1 When you propose specific changes, the AI might be able to generate code accordingly. With features like Claude's Artifacts, you could potentially output multiple files, allowing for the generation of multiple interdependent pieces of code. Repomix File Usage 2 Happy coding! 🚀

Using The Website 🌐

Want to try it quickly? Visit the official website at repomix.com. Simply enter your repository name, fill in any optional details, and click the Pack button to see your generated output.

Available Options

The website offers several convenient features:

• Customizable output format (XML, Markdown, or Plain Text)
• Instant token count estimation
• Much more!

Using The VSCode Extension ⚡️

A community-maintained VSCode extension lets you run Repomix right inside your editor with just a few clicks. Run it on any folder, manage outputs seamlessly, and control everything through VSCode's intuitive interface. Want your output as a file or just the content? Need automatic cleanup? This extension has you covered. Plus, it works smoothly with your existing repomix.config.json. Try it now on the VSCode Marketplace! Source code is available on GitHub.

Alternative Tools 🛠️

If you're using Python, you might want to check out Gitingest, which is better suited for Python ecosystem and data science workflows:

📊 Usage

To pack your entire repository:

repomix

To pack a specific directory:

repomix path/to/directory

To pack specific files or directories using glob patterns:

repomix --include "src/**/*.ts,**/*.md"

To exclude specific files or directories:

repomix --ignore "**/*.log,tmp/"

To pack a remote repository:

repomix --remote 
# You can also use GitHub shorthand:
repomix --remote yamadashy/repomix
# You can specify the branch name, tag, or commit hash:
repomix --remote --remote-branch main
# Or use a specific commit hash:
repomix --remote --remote-branch 935b695
# Another convenient way is specifying the branch's URL
repomix --remote 
# Commit's URL is also supported
repomix --remote 

To compress the output:

repomix --compress
# You can also use it with remote repositories:
repomix --remote yamaadshy/repomix --compress

To initialize a new configuration file (repomix.config.json):

repomix --init

Once you have generated the packed file, you can use it with Generative AI tools like ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more.

Docker Usage 🐳

You can also run Repomix using Docker. This is useful if you want to run Repomix in an isolated environment or prefer using containers. Basic usage (current directory):

docker run -v .:/app -it --rm ghcr.io/yamadashy/repomix

To pack a specific directory:

docker run -v .:/app -it --rm ghcr.io/yamadashy/repomix path/to/directory

Process a remote repository and output to a output directory:

docker run -v ./output:/app -it --rm ghcr.io/yamadashy/repomix --remote 

Prompt Examples

Once you have generated the packed file with Repomix, you can use it with AI tools like ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more. Here are some example prompts to get you started:

Code Review and Refactoring

For a comprehensive code review and refactoring suggestions:

This file contains my entire codebase. Please review the overall structure and suggest any improvements or refactoring opportunities, focusing on maintainability and scalability.

Documentation Generation

To generate project documentation:

Based on the codebase in this file, please generate a detailed README.md that includes an overview of the project, its main features, setup instructions, and usage examples.

Test Case Generation

For generating test cases:

Analyze the code in this file and suggest a comprehensive set of unit tests for the main functions and classes. Include edge cases and potential error scenarios.

Code Quality Assessment

Evaluate code quality and adherence to best practices:

Review the codebase for adherence to coding best practices and industry standards. Identify areas where the code could be improved in terms of readability, maintainability, and efficiency. Suggest specific changes to align the code with best practices.

Library Overview

Get a high-level understanding of the library

This file contains the entire codebase of library. Please provide a comprehensive overview of the library, including its main purpose, key features, and overall architecture.

Feel free to modify these prompts based on your specific needs and the capabilities of the AI tool you're using.

Community Discussion

Check out our community discussion where users share:

• Which AI tools they're using with Repomix
• Effective prompts they've discovered
• How Repomix has helped them
• Tips and tricks for getting the most out of AI code analysis Feel free to join the discussion and share your own experiences! Your insights could help others make better use of Repomix.

Output File Format

Repomix generates a single file with clear separators between different parts of your codebase. To enhance AI comprehension, the output file begins with an AI-oriented explanation, making it easier for AI models to understand the context and structure of the packed repository.

XML Format (default)

The XML format structures the content in a hierarchical manner:

This file is a merged representation of the entire codebase, combining all repository files into a single document.
<file_summary>
 (Metadata and usage AI instructions)
</file_summary>
<directory_structure>
src/
cli/
cliOutput.ts
index.ts
(...remaining directories)
</directory_structure>
<files>
<file path="src/index.js">
 // File contents here
</file>
(...remaining files)
</files>
<instruction>
(Custom instructions from `output.instructionFilePath`)
</instruction>

For those interested in the potential of XML tags in AI contexts:

When your prompts involve multiple components like context, instructions, and examples, XML tags can be a game-changer. They help Claude parse your prompts more accurately, leading to higher-quality outputs. This means that the XML output from Repomix is not just a different format, but potentially a more effective way to feed your codebase into AI systems for analysis, code review, or other tasks.

Markdown Format

To generate output in Markdown format, use the --style markdown option:

repomix --style markdown

The Markdown format structures the content in a hierarchical manner:

This file is a merged representation of the entire codebase, combining all repository files into a single document.
# File Summary
(Metadata and usage AI instructions)
# Repository Structure
```
src/
 cli/
 cliOutput.ts
 index.ts
```
(...remaining directories)
# Repository Files
## File: src/index.js
```
// File contents here
```
(...remaining files)
# Instruction
(Custom instructions from `output.instructionFilePath`)

This format provides a clean, readable structure that is both human-friendly and easily parseable by AI systems.

Plain Text Format

To generate output in plain text format, use the --style plain option:

repomix --style plain

This file is a merged representation of the entire codebase, combining all repository files into a single document.
================================================================
File Summary
================================================================
(Metadata and usage AI instructions)
================================================================
Directory Structure
================================================================
src/
 cli/
 cliOutput.ts
 index.ts
 config/
 configLoader.ts
(...remaining directories)
================================================================
Files
================================================================
================
File: src/index.js
================
// File contents here
================
File: src/utils.js
================
// File contents here
(...remaining files)
================================================================
Instruction
================================================================
(Custom instructions from `output.instructionFilePath`)

Command Line Options

Basic Options

• -v, --version: Show tool version

Output Options

• -o, --output : Specify the output file name
• --style : Specify the output style (xml, markdown, plain)
• --parsable-style: Enable parsable output based on the chosen style schema. Note that this can increase token count.
• --compress: Perform intelligent code extraction, focusing on essential function and class signatures to reduce token count
• --output-show-line-numbers: Show line numbers in the output
• --copy: Additionally copy generated output to system clipboard
• --no-file-summary: Disable file summary section output
• --no-directory-structure: Disable directory structure section output
• --remove-comments: Remove comments from supported file types
• --remove-empty-lines: Remove empty lines from the output
• --header-text : Custom text to include in the file header
• --instruction-file-path : Path to a file containing detailed custom instructions
• --include-empty-directories: Include empty directories in the output
• --no-git-sort-by-changes: Disable sorting files by git change count (enabled by default)

Filter Options

• --include : List of include patterns (comma-separated)
• -i, --ignore : Additional ignore patterns (comma-separated)
• --no-gitignore: Disable .gitignore file usage
• --no-default-patterns: Disable default patterns

Remote Repository Options

• --remote : Process a remote Git repository
• --remote-branch : Specify the remote branch name, tag, or commit hash (defaults to repository default branch)

Configuration Options

• -c, --config : Path to a custom config file
• --init: Create config file
• --global: Use global config

Security Options

• --no-security-check: Disable security check

Token Count Options

• --token-count-encoding : Specify token count encoding (e.g., o200k_base, cl100k_base)

MCP

• --mcp: Run as a MCP (Model Context Protocol) server

Other Options

• --top-files-len : Number of top files to display in the summary
• --verbose: Enable verbose logging
• --quiet: Disable all output to stdout Examples:

repomix -o custom-output.txt
repomix -i "*.log,tmp" -v
repomix -c ./custom-config.json
repomix --style xml
repomix --remote 
npx repomix src

Updating Repomix

To update a globally installed Repomix:

# Using npm
npm update -g repomix
# Using yarn
yarn global upgrade repomix

Using npx repomix is generally more convenient as it always uses the latest version.

Remote Repository Processing

Repomix supports processing remote Git repositories without the need for manual cloning. This feature allows you to quickly analyze any public Git repository with a single command. To process a remote repository, use the --remote option followed by the repository URL:

repomix --remote 

You can also use GitHub's shorthand format:

repomix --remote yamadashy/repomix

You can specify the branch name, tag, or commit hash:

# Using --remote-branch option
repomix --remote --remote-branch main
# Using branch's URL
repomix --remote 

Or use a specific commit hash:

# Using --remote-branch option
repomix --remote --remote-branch 935b695
# Using commit's URL
repomix --remote 

Code Compression

The --compress option utilizes Tree-sitter to perform intelligent code extraction, focusing on essential function and class signatures while removing implementation details. This can help reduce token count while retaining important structural information.

repomix --compress

For example, this code:

import { ShoppingItem } from './shopping-item';
/**
 * Calculate the total price of shopping items
 */
const calculateTotal = (
 items: ShoppingItem
) => {
 let total = 0;
 for (const item of items) {
 total += item.price * item.quantity;
 return total;
// Shopping item interface
interface Item {
 name: string;
 price: number;
 quantity: number;

Will be compressed to:

import { ShoppingItem } from './shopping-item';
⋮----
/**
 * Calculate the total price of shopping items
 */
const calculateTotal = (
 items: ShoppingItem
) => {
⋮----
// Shopping item interface
interface Item {
 name: string;
 price: number;
 quantity: number;

[!NOTE] This is an experimental feature that we'll be actively improving based on user feedback and real-world usage

MCP Integration

Repomix supports the Model Context Protocol (MCP), allowing AI assistants to directly interact with your codebase. When run as an MCP server, Repomix provides tools that enable AI assistants to package local or remote repositories for analysis without requiring manual file preparation.

repomix --mcp

Available MCP Tools

When running as an MCP server, Repomix provides the following tools:

1. pack_codebase: Package a local code directory into a consolidated file for AI analysis

• Parameters:
• directory: Absolute path to the directory to pack
• compress: (Optional, default: true) Whether to perform intelligent code extraction
• includePatterns: (Optional) Comma-separated list of include patterns
• ignorePatterns: (Optional) Comma-separated list of ignore patterns

2. pack_remote_repository: Fetch, clone and package a GitHub repository

• Parameters:
• remote: GitHub repository URL or user/repo format (e.g., yamadashy/repomix)
• compress: (Optional, default: true) Whether to perform intelligent code extraction
• includePatterns: (Optional) Comma-separated list of include patterns
• ignorePatterns: (Optional) Comma-separated list of ignore patterns

3. file_system_read_file: Read a file using an absolute path with security validation

• Parameters:
• path: Absolute path to the file to read
• Security features:
• Implements security validation using Secretlint
• Prevents access to files containing sensitive information
• Validates absolute paths to prevent directory traversal attacks

4. file_system_read_directory: List contents of a directory using an absolute path

• Parameters:
• path: Absolute path to the directory to list
• Features:
• Shows files and directories with clear indicators ([FILE] or [DIR])
• Provides safe directory traversal with proper error handling
• Validates paths and ensures they are absolute

Configuring MCP Servers

To use Repomix as an MCP server with AI assistants like Claude, you need to configure the MCP settings: For Cline (VS Code extension): Edit the cline_mcp_settings.json file:

 "mcpServers": {
 "repomix": {
 "command": "npx",
 "args": [
 "-y",
 "repomix",
 "--mcp"

For Claude Desktop: Edit the claude_desktop_config.json file with similar configuration to Cline's config. Once configured, your AI assistant can directly use Repomix's capabilities to analyze codebases without manual file preparation, making code analysis workflows more efficient.

⚙️ Configuration

Create a repomix.config.json file in your project root for custom configurations.

repomix --init

Here's an explanation of the configuration options: | Option | Description | Default | | output.filePath | The name of the output file | "repomix-output.xml" | | output.style | The style of the output (xml, markdown, plain) | "xml" | | output.parsableStyle | Whether to escape the output based on the chosen style schema. Note that this can increase token count. | false | | output.compress | Whether to perform intelligent code extraction to reduce token count | false | | output.headerText | Custom text to include in the file header | null | | output.instructionFilePath | Path to a file containing detailed custom instructions | null | | output.fileSummary | Whether to include a summary section at the beginning of the output | true | | output.directoryStructure | Whether to include the directory structure in the output | true | | output.removeComments | Whether to remove comments from supported file types | false | | output.removeEmptyLines | Whether to remove empty lines from the output | false | | output.showLineNumbers | Whether to add line numbers to each line in the output | false | | output.copyToClipboard | Whether to copy the output to system clipboard in addition to saving the file | false | | output.topFilesLength | Number of top files to display in the summary. If set to 0, no summary will be displayed | 5 | | output.includeEmptyDirectories | Whether to include empty directories in the repository structure | false | | output.git.sortByChanges | Whether to sort files by git change count (files with more changes appear at the bottom) | true | | output.git.sortByChangesMaxCommits | Maximum number of commits to analyze for git changes | 100 | | include | Patterns of files to include (using glob patterns) | | | `ignore.useGitignore` | Whether to use patterns from the project's `.gitignore` file | `true` | | `ignore.useDefaultPatterns` | Whether to use default ignore patterns | `true` | | `ignore.customPatterns` | Additional patterns to ignore (using glob patterns) | | | security.enableSecurityCheck | Whether to perform security checks on files | true | | tokenCount.encoding | Token count encoding for AI model context limits (e.g., o200k_base, cl100k_base) | "o200k_base" | The configuration file supports JSON5 syntax, which allows:

• Comments (both single-line and multi-line)
• Trailing commas in objects and arrays
• Unquoted property names
• More relaxed string syntax Example configuration:

 "output": {
 "filePath": "repomix-output.xml",
 "style": "xml",
 "parsableStyle": true,
 "compress": false,
 "headerText": "Custom header information for the packed file.",
 "fileSummary": true,
 "directoryStructure": true,
 "removeComments": false,
 "removeEmptyLines": false,
 "showLineNumbers": false,
 "copyToClipboard": true,
 "topFilesLength": 5,
 "includeEmptyDirectories": false,
 "git": {
 "sortByChanges": true,
 "sortByChangesMaxCommits": 100
 "include": [
 "**/*"
 "ignore": {
 "useGitignore": true,
 "useDefaultPatterns": true,
 // Patterns can also be specified in .repomixignore
 "customPatterns": [
 "additional-folder",
 "**/*.log"
 "security": {
 "enableSecurityCheck": true
 "tokenCount": {
 "encoding": "o200k_base"

Global Configuration

To create a global configuration file:

repomix --init --global

The global configuration file will be created in:

• Windows: %LOCALAPPDATA%\Repomix\repomix.config.json
• macOS/Linux: $XDG_CONFIG_HOME/repomix/repomix.config.json or ~/.config/repomix/repomix.config.json Note: Local configuration (if present) takes precedence over global configuration.

Include and Ignore

Include Patterns

Repomix now supports specifying files to include using glob patterns. This allows for more flexible and powerful file selection:

• Use **/*.js to include all JavaScript files in any directory
• Use src/**/* to include all files within the src directory and its subdirectories
• Combine multiple patterns like ["src/**/*.js", "**/*.md"] to include JavaScript files in src and all Markdown files

Ignore Patterns

Repomix offers multiple methods to set ignore patterns for excluding specific files or directories during the packing process:

• .gitignore: By default, patterns listed in your project's .gitignore files and .git/info/exclude are used. This behavior can be controlled with the ignore.useGitignore setting or the --no-gitignore cli option.
• Default patterns: Repomix includes a default list of commonly excluded files and directories (e.g., node_modules, .git, binary files). This feature can be controlled with the ignore.useDefaultPatterns setting or the --no-default-patterns cli option. Please see defaultIgnore.ts for more details.
• .repomixignore: You can create a .repomixignore file in your project root to define Repomix-specific ignore patterns. This file follows the same format as .gitignore.
• Custom patterns: Additional ignore patterns can be specified using the ignore.customPatterns option in the configuration file. You can overwrite this setting with the -i, --ignore command line option. Priority Order (from highest to lowest):

1. Custom patterns ignore.customPatterns
2. .repomixignore
3. .gitignore and .git/info/exclude (if ignore.useGitignore is true and --no-gitignore is not used)
4. Default patterns (if ignore.useDefaultPatterns is true and --no-default-patterns is not used) This approach allows for flexible file exclusion configuration based on your project's needs. It helps optimize the size of the generated pack file by ensuring the exclusion of security-sensitive files and large binary files, while preventing the leakage of confidential information. Note: Binary files are not included in the packed output by default, but their paths are listed in the "Repository Structure" section of the output file. This provides a complete overview of the repository structure while keeping the packed file efficient and text-based.

Custom Instruction

The output.instructionFilePath option allows you to specify a separate file containing detailed instructions or context about your project. This allows AI systems to understand the specific context and requirements of your project, potentially leading to more relevant and tailored analysis or suggestions. Here's an example of how you might use this feature:

1. Create a file named repomix-instruction.md in your project root:

# Coding Guidelines
- Follow the Airbnb JavaScript Style Guide
- Suggest splitting files into smaller, focused units when appropriate
- Add comments for non-obvious logic. Keep all text in English
- All new features should have corresponding unit tests
# Generate Comprehensive Output
- Include all content without abbreviation, unless specified otherwise
- Optimize for handling large codebases while maintaining output quality

2. In your repomix.config.json, add the instructionFilePath option:

 "output": {
 "instructionFilePath": "repomix-instruction.md",
 // other options...

When Repomix generates the output, it will include the contents of repomix-instruction.md in a dedicated section. Note: The instruction content is appended at the end of the output file. This placement can be particularly effective for AI systems. For those interested in understanding why this might be beneficial, Anthropic provides some insights in their documentation:

Put long-form data at the top: Place your long documents and inputs (~20K+ tokens) near the top of your prompt, above your query, instructions, and examples. This can significantly improve Claude's performance across all models. Queries at the end can improve response quality by up to 30% in tests, especially with complex, multi-document inputs.

Comment Removal

When output.removeComments is set to true, Repomix will attempt to remove comments from supported file types. This feature can help reduce the size of the output file and focus on the essential code content. Supported languages include: HTML, CSS, JavaScript, TypeScript, Vue, Svelte, Python, PHP, Ruby, C, C#, Java, Go, Rust, Swift, Kotlin, Dart, Shell, and YAML. Note: The comment removal process is conservative to avoid accidentally removing code. In complex cases, some comments might be retained.

🔍 Security Check

Repomix includes a security check feature that uses Secretlint to detect potentially sensitive information in your files. This feature helps you identify possible security risks before sharing your packed repository. The security check results will be displayed in the CLI output after the packing process is complete. If any suspicious files are detected, you'll see a list of these files along with a warning message. Example output:

🔍 Security Check:
──────────────────
2 suspicious file(s) detected:
1. src/utils/test.txt
2. tests/utils/secretLintUtils.test.ts
Please review these files for potentially sensitive information.

By default, Repomix's security check feature is enabled. You can disable it by setting security.enableSecurityCheck to false in your configuration file:

 "security": {
 "enableSecurityCheck": false

Or using the --no-security-check command line option:

repomix --no-security-check

[!NOTE] Disabling security checks may expose sensitive information. Use this option with caution and only when necessary, such as when working with test files or documentation that contains example credentials.

🤝 Contribution

We welcome contributions from the community! To get started, please refer to our Contributing Guide.

Contributors

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