A Full-Stack Web Application for Media Downloading
Visit Live SiteClipDown is a self-hosted, full-stack video and audio downloader web application with a premium dark-themed UI. Users can paste links from YouTube, TikTok, Instagram, Twitter/X, and 1000+ other websites to download media as MP4 video or MP3 audio files.
The project demonstrates proficiency in full-stack development, including Python backend development with Flask, frontend design with vanilla HTML/CSS/JavaScript, Docker containerization, and cloud deployment on Render.
Inspired by the open-source ReClip project by averygan.
Download from YouTube, TikTok, Instagram, Twitter/X, Reddit, Facebook, Vimeo, and 1000+ more sites.
Choose between MP4 video download or MP3 audio extraction with one-click toggle.
Select video resolution (1080p, 720p, 480p, etc.) with per-format quality chips.
Paste multiple URLs at once — separated by spaces, commas, or newlines — with automatic deduplication.
Loading skeletons, download progress spinners, success/error states with friendly error messages.
Containerized with Docker for easy deployment on Render, Railway, or any cloud platform.
| Component | Technology | Purpose |
|---|---|---|
| Frontend | HTML/CSS/JS | User interface with dark blue theme |
| Backend | Python Flask | REST API for video info and downloads |
| Download Engine | yt-dlp + FFmpeg | Video/audio extraction and conversion |
| Job System | Python Threading | Concurrent background downloads |
| Production Server | Gunicorn | WSGI HTTP server with workers |
| Containerization | Docker | Isolated, reproducible deployment |
| Hosting | Render | Cloud platform with 24/7 uptime |
POST /api/info
Body: { "url": "https://youtube.com/watch?v=..." }
Response: { title, thumbnail, duration, uploader, formats[] }POST /api/download
Body: { "url": "...", "format": "video|audio", "format_id": "..." }
Response: { "job_id": "abc123" }GET /api/status/{job_id}
Response: { "status": "done|downloading|error", "filename": "..." }GET /api/file/{job_id}
Response: Binary file downloadEach download runs in a separate daemon thread, allowing multiple concurrent downloads without blocking the Flask server. The job system tracks status and provides real-time updates via polling.
Downloaded files are automatically cleaned up after 30 minutes to conserve disk space on the Render deployment. This ensures the server doesn't run out of storage over time.
The application provides user-friendly error messages for common issues like unsupported URLs, private videos, geo-restrictions, and timeouts — making the experience smooth even when things go wrong.
| Challenge | Solution |
|---|---|
| Long download times blocking server | Implemented threaded background jobs with polling |
| Disk space on cloud hosting | Auto-cleanup of files older than 30 minutes |
| Various URL formats and platforms | Leveraged yt-dlp's extensive site support |
| Video + audio merging | Used FFmpeg for seamless format merging |
| Production deployment | Docker + Gunicorn for reliable serving |
ClipDown successfully demonstrates building a full-stack web application from scratch — combining a Python Flask backend with a premium frontend, containerized Docker deployment, and cloud hosting on Render. The project supports downloading from 1000+ video platforms and provides a smooth, modern user experience.
Through this project, I gained valuable experience in backend API design, threading for concurrent operations, Docker containerization, cloud deployment, and creating polished user interfaces that rival commercial products.