Seal v1.12.1 - Open-Source yt-dlp Video & Audio Downloader
Modern Material You open-source downloader powered by yt-dlp, supporting thousands of websites, custom command templates, subtitles, and lossless audio...
Technical Specifications & System Requirements
Software notes
How Seal Compares to Top Alternatives
NewPipe is a complete streaming front-end player with in-app browsing, while Seal is a dedicated, specialized download manager powered by yt-dlp.
TubeMate is a classic multi-threaded video downloader, while Seal offers open-source transparency and yt-dlp versatility.
Seal for Android — Modern Open-Source yt-dlp Video & Audio Downloader
Seal is an acclaimed, state-of-the-art open-source media downloader developed by JunkFood02. Built directly on the world's most powerful media extraction engine (yt-dlp), Seal brings command-line precision and multi-site scraping power into a stunning, fluid Material You (Material 3) Android application.
With native support for thousands of video and audio platforms, custom command-line arguments, automatic subtitle and thumbnail embedding, and zero advertising or telemetry, Seal represents the pinnacle of modern open-source Android software design.
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🌟 Executive Overview & Key Tactical Highlights
Seal leverages the cutting-edge yt-dlp backend to extract media from virtually any public video or audio URL. Featuring dynamic Monet theming that matches your device wallpaper, Seal is as beautiful as it is powerful.
Key Architectural Strengths:
- 100% Free & Open Source (GPL-3.0): Completely open codebase with zero ads, tracking SDKs, or proprietary telemetry.
- Full yt-dlp Powerhouse: Supports over 1,000 websites and streaming portals with continuous upstream updates.
- Material You Dynamic Theming: Full Material 3 interface with Monet color palettes that adapt automatically to your wallpaper.
- Advanced Command Customization: Add custom yt-dlp arguments, configure user-agent strings, and set custom format sorting.
- Comprehensive Metadata Embedding: Automatically embeds high-resolution thumbnails, subtitles, chapters, and ID3 tags into downloaded files.
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📊 Technical Comparison: Seal vs. [TubeMate](/app/tubemate-youtube-downloader-apk/) vs. [Snaptube](/app/snaptube-video-downloader-apk/)
| Feature Dimension | Seal (FileCobra) | TubeMate | Snaptube |
|---|---|---|---|
| Licence Type | 100% Open Source (GPL-3.0) | Proprietary Freeware | Proprietary Freeware |
| Backend Engine | yt-dlp Core | Custom Socket Engine | Custom Multi-Platform |
| Ads & Trackers | Zero Ads & Zero Telemetry | Clean Ad-Supported | Clean Ad-Supported |
| UI Design System | Material You (Monet) | Classic Utility | Modern Dark Theme |
| Custom Arguments | Full CLI Argument Support | Pre-set Formats | Pre-set Formats |
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📋 System Requirements & Technical Specifications
| Hardware Component | Minimum Requirement | Recommended Spec |
|---|---|---|
| Operating System | Android 6.0 (Marshmallow) or later | Android 12.0 / 13.0 / 14.0+ |
| System RAM | 2 GB RAM | 4 GB RAM or higher |
| Storage Space | 80 MB free internal storage | Fast UFS storage for 4K video saving |
| Architecture | ARM64-v8a, armeabi-v7a, x86_64 | ARM64-v8a |
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🛠️ Step-by-Step Installation & Setup Guide
- Download the official
Seal-v1.12.1-arm64-v8a-release.apkpackage directly from FileCobra's verified mirror. - In Android Settings, grant Install Unknown Apps permission.
- Open the APK and tap Install.
- Open Seal, paste any video URL into the prompt, choose your format and quality, and download immediately!
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❓ Frequently Asked Questions (FAQ)
Is Seal completely free and open source?
Yes. Seal is licensed under GPL-3.0, completely free of charge, with zero advertising, zero in-app purchases, and zero telemetry.
What backend engine does Seal use?
Seal uses yt-dlp, the world's most capable open-source command-line media downloader, wrapped in an elegant Material You graphical interface.
Can Seal download video subtitles and thumbnails?
Yes. Seal can automatically extract and embed multi-language subtitles and high-resolution album art thumbnails directly into the output MP4 or MKV container.
Seal UI & Interface Screenshots
Seal Version History & Build Numbers
Every Seal build FileCobra has mirrored, newest first. Match the build number against the copy you already have to confirm whether you are up to date.
Frequently Asked Questions & Verification Guide
Is Seal completely free and open source?
Yes. Seal is licensed under GPL-3.0, completely free of charge, with zero advertising, zero in-app purchases, and zero telemetry.
What backend engine does Seal use?
Seal uses yt-dlp, the world's most capable open-source command-line media downloader, wrapped in an elegant Material You graphical interface.
Can Seal download video subtitles and thumbnails?
Yes. Seal can automatically extract and embed multi-language subtitles and high-resolution album art thumbnails directly into the output MP4 or MKV container.