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An Android application for downloading videos and media from the web with a built-in browser, multi-threaded download engine, and private vault.
- In-App Browser — Full WebView with incognito mode, HTTPS-only toggle, tracker blocking, bookmarking, and media detection via JavaScript bridge
- Multi-Threaded Download Engine — Segmented (chunked) downloads with pause/resume, real-time speed tracking, and adaptive threading
- Analyze-First UX — Paste any link on the dashboard, tap Analyze, see platform info + quality options, then download
- Multi-Platform Video Downloader — Supports TikTok, Instagram, Facebook, Twitter/X, Reddit, Pinterest, SoundCloud, Vimeo, Twitch, Dailymotion, Tumblr, and ANY website via generic fallback extraction
- TikTok Downloader — TikWM API + 9 fallback strategies for HD no-watermark, watermarked, and audio-only downloads
- Instagram Downloader — 4-strategy chain: third-party API (primary), embed /captioned/, GraphQL with session warmup, regular embed
- Facebook Downloader — 3-strategy custom extraction (m.facebook.com → www → mbasic), no yt-dlp dependency, User-Agent: facebookexternalhit/1.1 for CDN, cookie injection, share URL resolution
- Pinterest Downloader — 5-strategy extraction: og:video, JSON-LD VideoObject, relay script data with brace-counting JSON parser, contentUrl regex, pinimg CDN URL; pin.it short URL resolution; browser headers for server-side rendering
- Twitter/X Downloader — og:video, twitter:player:stream, and CDN URL extraction
- Generic Fallback — 10 extraction strategies for ANY website (og:video, JSON-LD, video tags, CDN patterns, etc.)
- Social Media Authentication — WebView-based Instagram and Facebook login for cookie-captured extraction
- Media Detection — Automatically detects
<video>and downloadable media links on web pages - Download Queue — Active downloads section with progress bars, speed indicators, estimated remaining time, and health badges
- Private Vault — PIN-protected secure storage for sensitive downloads; files hidden from device gallery
- File Library — Completed downloads browser with category filtering (Video/Audio/Images/Other), video playback, file sharing, and move-to-vault
- Download Health Monitoring — Background WorkManager worker that periodically verifies file integrity and connection health
- Customizable Theme — Light, Dark, System, and AMOLED Black modes with 13 accent colors
- Storage Management — Visual storage overview with video/audio size breakdown and one-tap cache optimization
| Layer | Technology |
|---|---|
| Language | Kotlin |
| UI | Jetpack Compose + Material 3 |
| Architecture | MVVM with Repository Pattern |
| Database | Room (SQLite) via Kotlin Coroutines Flow |
| Networking | OkHttp 4.x, Moshi |
| Browser Engine | Android WebView with JavaScript Interface |
| Background Work | WorkManager 2.9.x |
| Image Loading | Coil |
| Security | Encrypted SharedPreferences, FileProvider |
| Min SDK | 24 (Android 7.0) |
| Target SDK | 36 (Android 16) |
| File | Size | SHA-256 |
|---|---|---|
| app-release.apk | 15.13 MB | CE23E9DBE52D6DE27076B0472C92A6ED289059DFDB51E7AD6D99A128D069694F |
| app-release.aab | 15.40 MB | D0C014B13541EECC143D482F399E37D5754C0429923CDB39AC272B27673FE0E9 |
- Android 7.0 (API 24) or higher
- ARM64 / ARM / x86_64
- Open the project in Android Studio.
- Sync Gradle and build the
appmodule.
Release builds require the following environment variables:
KEYSTORE_PATHKEYSTORE_PASSWORDKEY_ALIASKEY_PASSWORD
Debug builds use a local debug.keystore with default credentials.
app/src/main/java/com/example/
├── MainActivity.kt # Entry point with bottom navigation
├── ui/
│ ├── viewmodel/MainViewModel.kt # Central ViewModel (StateFlow + Room)
│ ├── screens/
│ │ ├── DashboardTab.kt # Home dashboard with analyze-first link input
│ │ ├── BrowserTab.kt # WebView browser with media detection
│ │ ├── DownloadsTab.kt # Download queue (active + completed)
│ │ ├── FilesTab.kt # File library with categories
│ │ ├── VaultTab.kt # PIN-protected private vault
│ │ ├── SettingsTab.kt # Preferences, theme, social media login, about
│ │ ├── InstagramLoginActivity.kt # WebView-based Instagram login for cookie capture
│ │ └── FacebookLoginActivity.kt # WebView-based Facebook login for cookie capture
│ ├── components/ # Reusable composables
│ │ ├── TabHeader.kt # Section header with category + title
│ │ ├── DownloadHealthIndicators.kt # Integrity & connection health badges
│ │ └── VideoPlayerDialog.kt # Full-screen video player
│ └── theme/ # Colors, typography, theme system
├── data/
│ ├── database/ # Room entities, DAOs, database
│ │ ├── Entities.kt # DownloadEntity, BookmarkEntity
│ │ ├── DAOs.kt # DownloadDao, queries
│ │ └── AppDatabase.kt # Room database singleton
│ └── download/ # Download engine + utilities
│ ├── VideoExtractor.kt # Multi-platform video extraction (20+ platforms)
│ ├── DownloadEngine.kt # Multi/single-thread download manager
│ ├── TikTokCookieStore.kt # Shared CookieJar for TikTok requests
│ ├── MediaUtils.kt # Formatting, filename parsing
│ └── DownloadIntegrityWorker.kt # Periodic health checks via WorkManager
| Platform | Extraction Method |
|---|---|
| TikTok | TikWM API + 9 fallback strategies |
| Third-party API + embed + GraphQL | |
| m.facebook.com (primary) → www → mbasic, facebookexternalhit/1.1 UA, cookie injection | |
| Twitter/X | og:video + twitter:player:stream + CDN |
| JSON API extraction | |
| og:video + JSON-LD + relay data (brace-counting) + contentUrl regex + CDN URL | |
| SoundCloud | oEmbed + og:audio |
| Vimeo | oEmbed extraction |
| Twitch | og:video + CDN |
| Dailymotion | oEmbed extraction |
| Tumblr | og:video + CDN |
| Any Website | 10-strategy generic fallback |
Abir Hasan Siam
- GitHub: github.com/abir2afridi
- Portfolio: abir2afridi.vercel.app
- Computer Science · Independent University of Bangladesh
MIT License — feel free to use, modify, and distribute.