Xfly - Secure Anonymous File Sharing Platform

Xfly is a modern, production-ready file sharing platform inspired by tools like WeTransfer, designed for speed, security, and simplicity. The application enables users to upload large files seamlessly and generate shareable links within seconds — all without requiring user authentication.

Built using Laravel 13, Livewire, Alpine.js, and Tailwind CSS, the platform combines a clean UI with a powerful backend to handle large file uploads efficiently using chunk-based uploading.

The system is engineered to support files up to 5GB+, ensuring reliability through advanced features like resumable uploads, upload cancellation, and real-time progress tracking.

🔥 Key Features

📂 File Upload & Sharing

• Upload large files (up to 5GB+)
• Instant generation of secure, unique download links
• No login required (guest-friendly experience)

⚡ Advanced Upload Engine

• Chunk-based upload system (prevents failure on large files)
• Resume upload after refresh
• Retry failed chunks automatically
• Upload progress bar with real-time updates
• Speed tracking (MB/s)
• ETA calculation (seconds, minutes, hours)

⛔ Upload Controls

• Cancel upload anytime (with server cleanup)
• Prevents corrupted uploads using chunk indexing
• Smart file matching (avoids wrong resume)

🔐 Security Features

• Optional password protection
• Unpredictable secure token-based URLs
• Files cannot be guessed or accessed without link
• Server-side validation and protection

⏳ Auto Expiry System

• File expiration (max 24 hours)
• Automatic file deletion using scheduled jobs
• Background cleanup system (cron-based)

📝 Extra Features

• Add custom notes/messages with file
• Copy link with one click
• Clean and modern UI (dark mode ready)
• Works for both guest and logged-in users

🧠 Technical Highlights

• Backend: Laravel 13 (optimized for large file handling)
• Frontend: Livewire + Alpine.js + Tailwind CSS
• Upload System: Custom chunk upload (5MB chunks)
• Storage: Laravel Storage (local + scalable)
• Scheduler: Automated file cleanup using cron jobs
• Performance: Stream-based download (no memory overload)

🚀 Challenges Solved

• Handling 5GB+ uploads without server crash
• Preventing timeout and memory issues
• Implementing resume upload after refresh
• Managing concurrent chunk uploads safely
• Avoiding data corruption and orphan files

🎯 Use Cases

• Share large files quickly without login
• Temporary file hosting
• Secure document sharing
• Developer file transfer tool
• Lightweight alternative to cloud drives

💡 Why This Project Stands Out

• Handles large-scale uploads on shared hosting
• Fully custom-built upload engine (no third-party dependency)
• Production-level features similar to WeTransfer / Google Drive
• Clean UX + strong backend architecture