leetcode-fetch-cli

CLI tool to batch download LeetCode problems with solutions using leetcode's GraphQL endpoint. Languages are automatically detected for each problem.

Features

• Download problem descriptions (HTML, Markdown, Raw)
• Auto-detect available languages for each problem
• Download code templates for all available languages
• Download community solutions (top voted, filtered by language)
• Download official solutions
• Automatic image downloading

Installation

Global Installation (Recommended)

npm install -g leetcode-fetch-cli

After installation, the leetcode-fetch command will be available globally.

Using npx (No Installation Required)

npx leetcode-fetch-cli <command>

Local Development

git clone https://github.com/Djanghao/leetcode-fetch-cli.git
cd leetcode-fetch-cli
npm install
npm link

Usage

1. Login

leetcode-fetch login

The tool will automatically open your browser for LeetCode authentication:

1. Browser opens to LeetCode authorization page
2. Log in to your LeetCode account (if not already logged in)
3. Authorize the application
4. Session is automatically saved

2. Download Problems

Download All Problems

leetcode-fetch download

Download Specific Problem

leetcode-fetch download 1

Download with Custom Formats

leetcode-fetch download -f html,md

Download Without Templates or Solutions

leetcode-fetch download --no-templates
leetcode-fetch download --no-solutions --no-official

Download with Custom Concurrency

leetcode-fetch download -c 10
leetcode-fetch download --concurrency 20

Download Specific Problem with Options

leetcode-fetch download 1 -f md --no-templates

3. Check Status

leetcode-fetch status

4. Export Problems

Export downloaded problems with filtering options.

Export with Specific Language

leetcode-fetch export -o ./my-problems -l python3

Export Multiple Languages

leetcode-fetch export -o ./export -l python3,cpp,javascript

Export with HTML Format

leetcode-fetch export -o ./export -l python3 -f html

Export with Official Solutions

leetcode-fetch export -o ./my-problems -l python3,cpp -f md --official

Export All Languages (Default)

leetcode-fetch export -o ./export

5. Logout

leetcode-fetch logout

Common Use Cases

Download Everything (Default)

leetcode-fetch download

Downloads all problems with all available languages, all formats, templates, and solutions.

Markdown Only (Save Space)

leetcode-fetch download -f md

Downloads only markdown descriptions, useful for saving disk space.

Templates Only (For Practice)

leetcode-fetch download --no-solutions --no-official

Downloads only problem descriptions and code templates, ideal for practice.

Output Structure

downloads/
├── .download-progress.json    # Resume progress tracking
├── array/                     # Organized by problem tags
│   ├── 0001_Easy_two-sum/
│   │   ├── description/
│   │   │   ├── problem.html
│   │   │   ├── problem.md
│   │   │   ├── problem.raw.txt
│   │   │   └── images/        # Description images
│   │   │       ├── 0.jpg
│   │   │       └── 1.jpg
│   │   ├── templates/         # All available languages for this problem
│   │   │   ├── solution.py
│   │   │   ├── solution.js
│   │   │   ├── solution.cpp
│   │   │   └── ...
│   │   └── solutions/
│   │       ├── official/
│   │       │   ├── solution.md
│   │       │   └── images/    # Official solution images
│   │       │       └── 0.png
│   │       └── community/     # Top voted solution per language
│   │           ├── python3/
│   │           │   ├── solution.md
│   │           │   └── images/
│   │           │       └── 0.jpeg
│   │           ├── javascript/
│   │           │   └── solution.md
│   │           └── ...
└── ...
├── database/                  # Database problems
│   ├── 1280_Easy_students-and-examinations/
│   │   ├── templates/
│   │   │   ├── solution.sql
│   │   │   ├── solution.mssql.sql
│   │   │   ├── solution.pgsql.sql
│   │   │   ├── solution.oracle.sql
│   │   │   └── solution.pandas.py
│   │   └── ...
└── ...

Download Progress

The tool shows real-time progress and resumes interrupted downloads:

[1/3682] downloads/array/0001_Easy_two-sum  Description: 1/1, Templates: 19/19, Official: 1/1, Community: 19/19
[2/3682] downloads/database/1280_Easy_students-and-examinations  Description: 1/1, Templates: 5/5, Official: 1/1, Community: 5/5

If errors occur, they're logged to downloads/error.log. Progress is saved to .download-progress.json for resuming.

Options Reference

Commands

COMMANDS
  login             Authenticate with LeetCode
  logout            Clear authentication session
  status            Check authentication status
  download [id]     Download problems (optionally specify problem ID)
  export            Export downloaded problems with filtering

Download Options

DOWNLOAD OPTIONS
  [id]              Download specific problem by ID (optional)
  -f, --formats     Comma-separated formats: html,md,raw (default: all)
  --no-templates    Skip downloading code templates
  --no-solutions    Skip downloading community solutions
  --no-official     Skip downloading official solutions
  -c, --concurrency Number of concurrent downloads (default: 5)
  -h, --help        Show help message

Export Options

EXPORT OPTIONS
  -o, --output <path>       Destination folder (required)
  -l, --languages <langs>   Languages to export (comma-separated)
                            Example: python3,cpp,javascript
                            Default: all available languages
  -f, --format <format>     Description format: html, md, or raw
                            Default: md
  --official               Include official solutions
  -h, --help               Show help message

Note: Languages are automatically detected from each problem. Algorithm problems usually have 19 languages, database problems usually have 5 languages (SQL dialects + Pandas), and shell problems have Bash.

Examples

Download Examples

# Quick start
leetcode-fetch login
leetcode-fetch download

# Download specific problem
leetcode-fetch download 1

# Download all problems, markdown only
leetcode-fetch download -f md

# Download templates only (for practice)
leetcode-fetch download --no-solutions --no-official

# Download with 10 concurrent downloads
leetcode-fetch download -c 10

# Download specific problem with custom options
leetcode-fetch download 1 -f md --no-templates

Export Examples

# Export Python problems with markdown format
leetcode-fetch export -o ./my-problems -l python3

# Export multiple languages with HTML
leetcode-fetch export -o ./export -l python3,cpp,javascript -f html

# Export with official solutions
leetcode-fetch export -o ./export -l python3,cpp -f md --official

# Export all languages (default)
leetcode-fetch export -o ./all-problems

# Export single language for practice
leetcode-fetch export -o ./python-only -l python3 -f md

Other Examples

# Check authentication
leetcode-fetch status

# Logout
leetcode-fetch logout

Requirements

• Node.js >= 14.0.0
• LeetCode account

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT

Repository

https://github.com/Djanghao/leetcode-fetch-cli

Issues

https://github.com/Djanghao/leetcode-fetch-cli/issues

NPM Package

https://www.npmjs.com/package/leetcode-fetch-cli