🔐 xsukax File ↔ Base64 Converter

A secure, privacy-focused web application for converting files to Base64 encoding and back. All processing happens directly in your browser - your files never leave your device.

🌟 Key Features

🛡️ Security & Privacy First

• 100% Client-Side Processing: All conversions happen in your browser
• Zero Server Uploads: Your files never leave your device
• No Data Collection: We don't track, store, or see your files
• No External Dependencies: Pure JavaScript implementation
• No Network Requests: Works completely offline once loaded
• No Cookies or Analytics: Your privacy is absolute

⚡ Performance & Convenience

• Instant Conversion: No waiting for server responses
• Large File Support: Handle files up to 50MB
• Drag & Drop Interface: Simply drop your files to convert
• Progress Tracking: Visual feedback for large file processing
• One-Click Copy: Easy clipboard integration for Base64 strings
• Auto-Detection: Automatically identifies file types from Base64

🎯 Benefits

For Developers

• Quickly encode files for embedding in JSON APIs
• Convert images to Base64 for inline CSS/HTML
• Prepare binary data for text-based protocols
• Debug Base64 encoded data from APIs

For Security Professionals

• Safely inspect Base64 encoded payloads
• Convert suspicious files without server exposure
• Analyze encoded data in isolated environment
• No digital footprint of your activities

For Privacy-Conscious Users

• Convert sensitive documents without cloud exposure
• Process personal files with complete privacy
• No account required, no tracking, no logs
• Works offline after initial page load

📊 How It Works

graph TD
    A[Start] --> B{Choose Operation}
    B -->|File to Base64| C[Select/Drop File]
    B -->|Base64 to File| D[Paste Base64 String]
    
    C --> E[Read File in Browser]
    E --> F[Convert to Base64]
    F --> G[Display Result]
    G --> H[Copy to Clipboard]
    
    D --> I[Validate Base64]
    I --> J[Decode to Binary]
    J --> K[Create Blob Object]
    K --> L[Generate Download Link]
    L --> M[Download File]
    
    style A fill:#e1f5fe
    style H fill:#c8e6c9
    style M fill:#c8e6c9

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🚀 Usage Guide

Converting File to Base64

1. Open the Application

   • Navigate to the File → Base64 tab (default view)

2. Select Your File (Choose one method):

   • Click Method: Click the upload area to browse files
   • Drag & Drop: Drag file directly onto the upload area
   • File Input: Use the hidden file input for accessibility

3. View File Information

   • File name, size, type, and last modified date displayed
   • Progress bar shows conversion status for large files

4. Get Your Result

   • Base64 string appears in the text area
   • Includes data URI format (e.g., data:image/png;base64,...)
   • Click "Copy to Clipboard" for easy sharing

sequenceDiagram
    participant User
    participant Browser
    participant FileAPI
    participant Converter
    
    User->>Browser: Select/Drop File
    Browser->>FileAPI: Read File
    FileAPI->>Converter: File Data
    Converter->>Converter: Encode to Base64
    Converter->>Browser: Display Result
    User->>Browser: Copy to Clipboard

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Converting Base64 to File

1. Switch to Base64 → File Tab

   • Click the second tab in the interface

2. Paste Your Base64 Data

   • Supports both formats:
     • Full data URI: data:image/png;base64,iVBORw0...
     • Raw Base64: iVBORw0KGgoAAAANSUhEUgAA...

3. Optional: Specify Filename

   • Enter custom filename with extension
   • Leave blank for auto-detection based on MIME type

4. Convert & Download

   • Click "Convert & Prepare Download"
   • Review detected file information
   • Click "Download File" to save

📋 Supported File Types

The converter supports 150+ file formats including:

🖼️ Images

JPG, PNG, GIF, WebP, SVG, BMP, TIFF, ICO, PSD

📄 Documents

PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX, ODT, RTF

🎵 Audio

MP3, WAV, OGG, AAC, FLAC, M4A, WMA, OPUS

🎬 Video

MP4, AVI, MOV, WebM, WMV, MKV, FLV, 3GP

💻 Code & Data

JSON, XML, CSV, TXT, HTML, CSS, JS, PY, JAVA

📦 Archives

ZIP, RAR, 7Z, TAR, GZ, BZ2

And many more...

🔧 Technical Specifications

Feature	Specification
Max File Size	50 MB
Encoding Method	Base64 (RFC 4648)
Browser Compatibility	All modern browsers (Chrome, Firefox, Safari, Edge)
JavaScript Required	Yes
External Dependencies	None
Offline Capability	Yes (after initial load)
Mobile Support	Fully responsive design

🌐 Browser Compatibility

graph LR
    A[Application] --> B[Chrome 60+]
    A --> C[Firefox 55+]
    A --> D[Safari 11+]
    A --> E[Edge 79+]
    A --> F[Opera 47+]
    
    style A fill:#fff2cc
    style B fill:#d4edda
    style C fill:#d4edda
    style D fill:#d4edda
    style E fill:#d4edda
    style F fill:#d4edda

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🚦 Security Features

Data Protection

• ✅ No server-side processing
• ✅ No data transmission
• ✅ No temporary file storage
• ✅ No browser cache for file data
• ✅ Automatic memory cleanup

Privacy Guarantees

• ✅ No user tracking
• ✅ No analytics scripts
• ✅ No third-party libraries
• ✅ No external resources
• ✅ No cookies or local storage

💡 Use Cases

Web Development

// Embed image directly in HTML
<img src="data:image/png;base64,iVBORw0KGgoAAAA..." />

// Include file in JSON API
{
  "document": "data:application/pdf;base64,JVBERi0xLj..."
}

Email Attachments

Convert files to Base64 for embedding in email systems that support inline attachments.

Configuration Files

Store binary data in text-based configuration files or environment variables.

Data Transfer

Send binary files through text-only channels (chat, forms, etc.).

⚙️ Installation

Option 1: Direct Usage

Simply open the HTML file in any modern web browser. No installation required.

Option 2: Host on Your Server

# Clone the repository
git clone https://github.com/xsukax/xsukax-File-Base64-Converter.git

# Navigate to directory
cd xsukax-File-Base64-Converter

# Open in browser or serve with any web server
python -m http.server 8000
# Visit http://localhost:8000

Option 3: GitHub Pages

1. Fork this repository
2. Enable GitHub Pages in Settings
3. Access via https://yourusername.github.io/file-base64-converter/

🎨 Features in Detail

Smart File Type Detection

The application automatically detects and assigns appropriate file extensions based on MIME types when converting from Base64.

Real-Time Validation

• Base64 string validation before conversion
• File size checking before processing
• MIME type verification for accurate file reconstruction

User-Friendly Interface

• Clean, modern design
• Intuitive tab navigation
• Visual feedback for all actions
• Responsive layout for all devices
• Accessibility-friendly controls

🔒 Privacy Policy

We collect absolutely no data.

• No files are uploaded to any server
• No usage statistics are collected
• No personal information is requested
• No cookies are set
• No external requests are made

Your files remain 100% private and under your control.

📝 License

This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details.

⚠️ Limitations

• Maximum file size: 50MB (browser memory constraints)
• Requires JavaScript enabled in browser
• Large files may take time to process depending on device performance

🙏 Acknowledgments

• Pure JavaScript implementation for maximum compatibility
• No external dependencies for enhanced security
• Inspired by the need for privacy-focused tools

📧 Support

For issues, questions, or suggestions:

• Open an issue on GitHub
• Check existing issues for solutions
• Contribute improvements via pull requests

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Remember: Your files never leave your device. This tool respects your privacy and security above all else.

🔐 Safe | 🚀 Fast | 🔒 Private | 💯 Free