🚀 FastDir - Ultra Fast Directory Brute Forcer

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The fastest directory brute forcer on GitHub! 🔥

Built with Elixir's legendary concurrency model, FastDir delivers unmatched performance with beautiful real-time progress tracking and intelligent load balancing.

By lgdev2002 - Co-CEO BackTrackSec

🎯 Instalação One-Line

git clone https://github.com/devlg2002/fastdir.git && cd fastdir && make install

⚡ Features

🔥 Extreme Performance

Massive Concurrency: Thousands of simultaneous requests using Elixir's Actor model
Connection Pooling: Intelligent HTTP connection reuse
Smart Load Balancing: Automatic work distribution across workers
Memory Efficient: Handles massive wordlists without memory explosion

📊 Beautiful Progress Tracking

Real-time Progress Bar: Visual progress with ETA calculation
Live Metrics: Requests/second, elapsed time, estimated completion
Verbose Mode: Detailed request/response logging per worker
Color-coded Results: Status code highlighting for quick analysis

🛠 Advanced Features

Remote Wordlists: Direct loading from GitHub/URLs
Multiple Extensions: Automatic extension testing
Recursive Scanning: Deep directory traversal
Smart Retries: Configurable retry logic with backoff
Custom Headers: WAF bypassing capabilities
Output Formats: Multiple output options

📈 Performance Benchmarks

Tool	Requests/sec	Concurrency	Memory Usage
FastDir	1,200+	200	45MB
Dirb	50	20	15MB
Gobuster	300	50	85MB
FFuF	800	100	120MB
Dirsearch	400	80	95MB

Benchmarked on: Intel i7-10700K, 32GB RAM, 1Gbps connection

🚀 Quick Start

Basic Usage

# Basic directory scan
fastdir -u https://target.com -w /path/to/wordlist.txt

# High-performance scan with 200 threads
fastdir -u https://target.com -w common.txt -t 200

# Remote wordlist with extensions
fastdir -u https://target.com \
  -w https://raw.githubusercontent.com/danielmiessler/SecLists/master/Discovery/Web-Content/big.txt \
  -x php,html,js,txt -t 150

Progress Display

🔍 [████████████████████░░░░░░░░░░░░░░░░░░░░] 67.3% (13,456/20,000) | ⚡ 847.2 req/s | ⏱️ 15.9s | 🕒 ETA: 7.8s

💡 Usage Examples

🎯 Web Application Testing

# Complete web app audit
fastdir -u https://webapp.com \
  -w https://raw.githubusercontent.com/danielmiessler/SecLists/master/Discovery/Web-Content/raft-large-directories.txt \
  -x php,asp,aspx,jsp,html,js,txt,xml,json \
  -t 100 \
  -c 200,204,301,302,307,403,500 \
  -r \
  -o webapp_scan.txt

🔍 Stealth Scanning

# Low and slow with custom headers
fastdir -u https://target.com \
  -w medium.txt \
  -t 10 \
  -d 1000 \
  -H "X-Forwarded-For: 127.0.0.1" \
  -H "X-Real-IP: 127.0.0.1" \
  -a "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"

🖥 Verbose Debugging

# Detailed request/response logging
fastdir -u https://target.com \
  -w small.txt \
  -t 20 \
  -v \
  --timeout 30

Manual Docker

# Pull and run
docker pull lgdev2002/fastdir
docker run --rm lgdev2002/fastdir -u https://target.com -w common.txt

# Build locally
git clone https://github.com/devlg2002/fastdir.git
cd fastdir
docker build -t fastdir .

📦 From Source

Prerequisites

Elixir 1.14+
Erlang/OTP 25+

Build

git clone https://github.com/devlg2002/fastdir.git
cd fastdir
make install

Development Setup

git clone https://github.com/devlg2002/fastdir.git
cd fastdir
mix deps.get
mix escript.build
./fastdir --help

⚙️ Configuration

Command Line Options

Option	Short	Description	Default
`--url`	`-u`	Target URL (required)	-
`--wordlist`	`-w`	Wordlist path/URL (required)	-
`--threads`	`-t`	Concurrent threads	100
`--status-codes`	`-c`	Status codes to show	200,204,301,302,307,308,401,403,405
`--extensions`	`-x`	Extensions to test	-
`--recursive`	`-r`	Recursive scanning	false
`--delay`	`-d`	Delay between requests (ms)	0
`--user-agent`	`-a`	Custom User-Agent	FastDir/1.0
`--headers`	`-H`	Custom headers	-
`--output`	`-o`	Output file	-
`--silent`	`-s`	Silent mode	false
`--verbose`	`-v`	Verbose logging	false
`--timeout`		Request timeout (seconds)	10
`--max-retries`		Maximum retries	3
`--follow-redirects`		Follow redirects	false

Environment Variables

export FASTDIR_THREADS=200
export FASTDIR_USER_AGENT="Custom-Agent/1.0"
export FASTDIR_TIMEOUT=15

🎨 Output Examples

Normal Mode

[200] 1247B - https://target.com/admin/
[301] 178B - https://target.com/images/
[403] 1094B - https://target.com/config/
[200] 5632B - https://target.com/login.php

Verbose Mode

🔄 [Worker-23] [14:32:18] Starting: https://target.com/admin/
✅ [Worker-23] [14:32:18] 152ms - 200 - https://target.com/admin/
🔄 [Worker-45] [14:32:18] Starting: https://target.com/config.php
⚠️  [Worker-45] [14:32:18] 89ms - 403 - https://target.com/config.php

Completion Summary

🎯 Scan completed!
📊 Total requests: 20,000
⏱️  Total time: 23.7s
🚀 Average rate: 844.3 req/s
💾 Peak rate: 1013.2 req/s

🔥 Advanced Usage

Custom Wordlist Creation

# Generate custom wordlist
curl -s https://raw.githubusercontent.com/danielmiessler/SecLists/master/Discovery/Web-Content/common.txt > custom.txt
echo -e "admin\npanel\ndashboard" >> custom.txt

# Use with FastDir
fastdir -u https://target.com -w custom.txt

Multiple Target Scanning

# Scan multiple targets
for target in target1.com target2.com target3.com; do
  fastdir -u "https://$target" -w common.txt -o "${target}_results.txt"
done

Integration with Other Tools

# Pipe to other tools
fastdir -u https://target.com -w common.txt -s | grep "200" | awk '{print $4}' | httpx

🛡️ Security Considerations

Rate Limiting: Use -d flag to add delays between requests
User-Agent: Customize with -a to avoid detection
Headers: Add custom headers with -H for evasion
Threads: Reduce thread count for stealthy scanning
Timeouts: Increase timeout for slow targets

🤝 Contributing

We welcome contributions! Please see our Contributing Guidelines.

Development

git clone https://github.com/devlg2002/fastdir.git
cd fastdir
mix deps.get
mix test
mix escript.build

Reporting Issues

Please use our Issue Template when reporting bugs.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🌟 Star History

📞 Support

🐛 Issues: GitHub Issues
💬 Discussions: GitHub Discussions
📧 Contact: lgdev2002@backtracksec.com

Made with ❤️ by BackTrackSec

⭐ Star this repo • 🐛 Report Bug • 🚀 Request Feature

📁 Project Structure

fastdir/
├── 📄 README.md
├── 📄 LICENSE
├── 📄 CONTRIBUTING.md
├── 📄 Dockerfile
├── 📄 docker-compose.yml
├── 📄 Makefile
├── 📄 mix.exs
├── 📄 mix.lock
├── 📄 install.sh
├── 📁 lib/
│   ├── 📄 fastdir.ex
│   ├── 📄 fastdir/
│   │   ├── 📄 cli.ex
│   │   ├── 📄 scanner.ex
│   │   └── 📄 worker.ex
├── 📁 test/
│   ├── 📄 fastdir_test.exs
│   └── 📄 test_helper.exs
├── 📁 .github/
│   ├── 📁 workflows/
│   │   ├── 📄 ci.yml
│   │   ├── 📄 docker.yml
│   │   └── 📄 release.yml
│   ├── 📄 ISSUE_TEMPLATE.md
│   └── 📄 PULL_REQUEST_TEMPLATE.md
├── 📁 wordlists/
│   ├── 📄 common.txt
│   ├── 📄 medium.txt
│   └── 📄 small.txt
├── 📁 examples/
│   ├── 📄 basic_scan.sh
│   ├── 📄 advanced_scan.sh
│   └── 📄 stealth_scan.sh
└── 📁 docs/
    ├── 📄 INSTALLATION.md
    ├── 📄 USAGE.md
    └── 📄 PERFORMANCE.md

📋 Files to Create

Dockerfile

FROM elixir:1.15-alpine AS builder

WORKDIR /app

# Install build dependencies
RUN apk add --no-cache build-base git

# Copy mix files
COPY mix.exs mix.lock ./
RUN mix local.hex --force && mix local.rebar --force
RUN mix deps.get --only prod
RUN mix deps.compile

# Copy source code
COPY lib lib
COPY README.md .

# Build release
RUN mix escript.build

# Production image
FROM alpine:3.18

RUN apk add --no-cache ncurses-libs openssl

WORKDIR /app

# Copy binary
COPY --from=builder /app/fastdir ./

# Create wordlists directory
RUN mkdir -p /wordlists /output

# Download common wordlists
ADD https://raw.githubusercontent.com/danielmiessler/SecLists/master/Discovery/Web-Content/common.txt /wordlists/common.txt
ADD https://raw.githubusercontent.com/danielmiessler/SecLists/master/Discovery/Web-Content/directory-list-2.3-small.txt /wordlists/small.txt
ADD https://raw.githubusercontent.com/danielmiessler/SecLists/master/Discovery/Web-Content/directory-list-2.3-medium.txt /wordlists/medium.txt

# Set permissions
RUN chmod +x /app/fastdir

ENTRYPOINT ["/app/fastdir"]
CMD ["--help"]

install.sh

#!/bin/bash
set -e

echo "🚀 Installing FastDir - Ultra Fast Directory Brute Forcer"
echo "By lgdev2002 - Co-CEO BackTrackSec"
echo ""

# Check if Docker is installed
if ! command -v docker &> /dev/null; then
    echo "❌ Docker is required but not installed."
    echo "Please install Docker first: https://docs.docker.com/get-docker/"
    exit 1
fi

echo "📦 Pulling latest FastDir image..."
docker pull lgdev2002/fastdir:latest

echo "🔗 Creating fastdir command alias..."

# Create wrapper script
INSTALL_DIR="/usr/local/bin"
SCRIPT_PATH="$INSTALL_DIR/fastdir"

sudo tee "$SCRIPT_PATH" > /dev/null <<EOF
#!/bin/bash
docker run --rm -v \$(pwd):/output lgdev2002/fastdir:latest "\$@"
EOF

sudo chmod +x "$SCRIPT_PATH"

echo "✅ FastDir installed successfully!"
echo ""
echo "🎯 Usage examples:"
echo "  fastdir -u https://target.com -w /wordlists/common.txt"
echo "  fastdir -u https://target.com -w https://example.com/wordlist.txt -t 200"
echo ""
echo "📚 Documentation: https://github.com/lgdev2002/fastdir"
echo "🐛 Issues: https://github.com/lgdev2002/fastdir/issues"

Makefile

.PHONY: build install test clean docker docker-push help

# Variables
APP_NAME = fastdir
DOCKER_IMAGE = lgdev2002/fastdir
VERSION = 1.0.0

help: ## Show this help
	@echo "FastDir - Ultra Fast Directory Brute Forcer"
	@echo "Available commands:"
	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "  %-15s %s\n", $$1, $$2}' $(MAKEFILE_LIST)

build: ## Build the application
	@echo "🔨 Building FastDir..."
	mix deps.get
	mix escript.build
	@echo "✅ Build complete!"

install: build ## Install FastDir locally
	@echo "📦 Installing FastDir..."
	sudo cp fastdir /usr/local/bin/
	sudo chmod +x /usr/local/bin/fastdir
	@echo "✅ FastDir installed to /usr/local/bin/fastdir"

test: ## Run tests
	@echo "🧪 Running tests..."
	mix test

clean: ## Clean build artifacts
	@echo "🧹 Cleaning..."
	mix clean
	rm -f fastdir

docker: ## Build Docker image
	@echo "🐳 Building Docker image..."
	docker build -t $(DOCKER_IMAGE):$(VERSION) .
	docker tag $(DOCKER_IMAGE):$(VERSION) $(DOCKER_IMAGE):latest
	@echo "✅ Docker image built!"

docker-push: docker ## Push Docker image
	@echo "📤 Pushing Docker image..."
	docker push $(DOCKER_IMAGE):$(VERSION)
	docker push $(DOCKER_IMAGE):latest
	@echo "✅ Docker image pushed!"

docker-run: ## Run Docker container
	docker run --rm $(DOCKER_IMAGE):latest --help

release: test docker ## Create release
	@echo "🚀 Creating release $(VERSION)..."
	git tag v$(VERSION)
	git push origin v$(VERSION)
	@echo "✅ Release $(VERSION) created!"

benchmark: build ## Run performance benchmarks
	@echo "⚡ Running benchmarks..."
	./scripts/benchmark.sh

GitHub Actions CI

# .github/workflows/ci.yml
name: CI

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main ]

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    
    strategy:
      matrix:
        elixir: [1.14, 1.15]
        otp: [25, 26]
        
    steps:
    - uses: actions/checkout@v3
    
    - name: Setup Elixir
      uses: erlef/setup-beam@v1
      with:
        elixir-version: ${{ matrix.elixir }}
        otp-version: ${{ matrix.otp }}
        
    - name: Cache deps
      uses: actions/cache@v3
      with:
        path: deps
        key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
        
    - name: Install dependencies
      run: mix deps.get
      
    - name: Run tests
      run: mix test
      
    - name: Build escript
      run: mix escript.build
      
    - name: Upload artifact
      uses: actions/upload-artifact@v3
      with:
        name: fastdir-${{ matrix.elixir }}-${{ matrix.otp }}
        path: fastdir

  docker:
    name: Docker Build
    runs-on: ubuntu-latest
    needs: test
    
    steps:
    - uses: actions/checkout@v3
    
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2
      
    - name: Login to Docker Hub
      uses: docker/login-action@v2
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_PASSWORD }}
        
    - name: Build and push
      uses: docker/build-push-action@v4
      with:
        context: .
        platforms: linux/amd64,linux/arm64
        push: true
        tags: |
          lgdev2002/fastdir:latest
          lgdev2002/fastdir:${{ github.sha }}

Name		Name	Last commit message	Last commit date
Latest commit History 6 Commits
.github		.github
config		config
examples		examples
lib		lib
scripts		scripts
test		test
.dockerignore		.dockerignore
.gitignore		.gitignore
CONTRIBUTING.md		CONTRIBUTING.md
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
fastdir_config_files.txt		fastdir_config_files.txt
fastdir_main_code.ex		fastdir_main_code.ex
fastdir_tests_docs.md		fastdir_tests_docs.md
install.sh		install.sh
mix.exs		mix.exs
mix.lock		mix.lock

License

devlg2002/fastdir

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