Snag

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Why Snag?

Most downloaders are either a terminal command or a page full of ads. Snag is the one I wanted as a kid: one box, one button, done. Whether it's a video, a playlist, a torrent, or a direct file link, if you need more control, it's all there one tap away.

⚡ Effortless by default

• One box, one button. Paste a link, drop it on the window, or Share directly to Snag on Android. Snag automatically spots links you've already copied.
• Video or audio from 1,000+ sites. Pick a video quality (up to 4K) or extract clean MP3, M4A, Opus or FLAC audio.
• Torrents & direct files. Not just for streaming sites—paste a magnet: link, open a .torrent file, or drop any direct file URL (.zip, .iso, .apk, archives, documents) and Snag handles it in the same queue.
• Plays everywhere. Video downloads default to H.264 + AAC in .mp4, so your files play natively on every device and chat app.
• Whole playlists. Choose exactly which items to grab with select all/none.

🛠️ Power tools when you want them

• A real queue & library. Live speed, ETA and size; cancel, pause/resume, retry, configurable parallel downloads, and a searchable local library to open or locate everything you've grabbed.
• Nice extras. Embedded metadata, cover art, chapters and subtitles. SponsorBlock can automatically mark or cut sponsor segments.
• Full engine control. Exact format picker, saved command templates with raw yt-dlp flags, extra arguments, cookies (from a file or straight from your browser), proxy, speed limits, and multi-connection aria2c acceleration.

🎨 Crafted with care

• Material 3 Expressive design. Wallpaper or accent colors, light/dark themes and springy motion that respects reduced-motion settings.
• Speaks your language. English and فارسی are built in, with full right-to-left layout, Persian digits and the Solar Hijri calendar. Every other language comes from the community, and adding one takes a single file.
• Respects you. No ads, no tracking, no accounts. Your files never leave your device.

Download

Grab the latest build from Releases (see CHANGELOG.md for what's new):

Platform	Direct Download (Latest)	Notes
Android	snag-android-arm64-v8a.apk (most phones)snag-android-armeabi-v7a.apk (older 32-bit)	Or add Snag to Obtainium for automatic updates straight from GitHub Releases.
Windows	snag-windows-x64.zip	Unzip and run snag.exe.
macOS	snag-macos.dmg · snag-macos.zip	Drag Snag into Applications. It isn't notarized yet, so the first time, open it once, then go to System Settings > Privacy & Security and click Open Anyway (or run xattr -cr /Applications/Snag.app).
Linux	AppImage · .deb · .rpm ·

On desktop, Snag fetches the official yt-dlp, ffmpeg, aria2 and Deno binaries the first time it runs. It stores them in its own app folder and never installs anything system-wide. You can update yt-dlp from Settings > Components with one click, which matters because sites change often. On Android everything is bundled.

Every official Android release is signed with the same key. Check it with apksigner (from the Android SDK build-tools):

apksigner verify --print-certs snag-android-*.apk

The SHA-256 digest must be:

A5:35:0A:AA:8A:BC:94:6C:C8:68:36:B7:70:F6:61:70:D3:EF:C2:AE:7E:6C:15:B3:DD:0A:3C:E6:A6:AA:13:8D

If it doesn't match, don't install it. An APK signed with a different key also can't update an existing Snag install.

Support Snag

Snag is free and always will be: no ads, no paywalls, no "pro" version. If it saved you time, please consider chipping in. Donations pay for build machines, code signing certificates (so macOS and Windows stop warning you) and the hours spent keeping up with sites that keep changing.

Crypto, listed cheapest network first. Send only on the network shown; coins sent on a different network can be lost for good. (The app has a copy button for each address: Settings > About > Crypto.)

Network	On exchanges, pick	Send	Address
BNB Smart Chain (lowest fees)	BSC / BEP20	BNB, USDT	0xDc131f09a194957EAdD1c069765BF9e78013Ac8C
Tron	TRON / TRC20	TRX, USDT	TPmJbZpicJEaG9Vj5sMLBmKvzMnyn7Bkxt
Ethereum	ETH / ERC20	ETH, USDT	0xDc131f09a194957EAdD1c069765BF9e78013Ac8C
Bitcoin	BTC (SegWit, address starts with bc1)	BTC	bc1qahd3arfp90rpny73dp9unjhcdl32mmnkrln7uy

• BNB Smart Chain (BSC, BEP20): Binance's network. The cheapest here, usually a few cents. Not the same as "BNB Beacon Chain" or "opBNB".
• Tron (TRC20): the most widely supported network for USDT, especially on Iranian exchanges. Sending USDT costs around $1 unless your wallet has staked TRX.
• Ethereum (ERC20): the original smart-contract network. Often cheap lately, but fees can jump when it's busy.
• Bitcoin: the original. Fees vary with network load, and it's slower than the others.

The BNB Smart Chain and Ethereum addresses are the same. That's normal: both networks use the same address format. Just make sure the network you pick matches the row you're copying from.

You can also help for free:

• ⭐ Star the repo. It helps other people find Snag.
• 🐛 Report broken sites with the log from the download's details sheet.
• 🌍 Translate Snag into your language on Weblate, right in your browser.
• 💜 Star yt-dlp too. Snag would be nothing without it.

Build it yourself

You need Flutter 3.47 or newer.

git clone [https://github.com/SalehTZ/snag.git](https://github.com/SalehTZ/snag.git)
cd snag
flutter pub get

flutter run -d linux        # or windows, macos
flutter run -d <android-id> # a phone or emulator

# Release builds
flutter build apk --release --split-per-abi
flutter build linux --release   # then linux/packaging/build.sh for .deb, .rpm and AppImage
flutter build windows --release
flutter build macos --release

Tests

flutter test                                     # unit tests (args, parsing, models)
flutter test tool/e2e                            # real downloads through the desktop engine (needs network)
flutter test tool/screenshots --update-goldens   # renders every screen to tool/screenshots/goldens
flutter test tool/icon --update-goldens && dart run flutter_launcher_icons   # regenerate the app icon
python3 tool/site/build.py                       # rebuild the website in docs/ (GitHub Pages)

How it works

UI (Flutter, Riverpod)
  └─ DownloadManager: unified queue, concurrency, history (media, torrents & direct files)
       └─ YtDlpEngine & Aria2 / Direct downloader: shared args and parsing
            ├─ DesktopEngine: spawns yt-dlp / aria2c binaries (Linux / Windows / macOS)
            └─ AndroidEngine: Kotlin bridge to youtubedl-android (embedded Python, ffmpeg, aria2c, QuickJS)

The trick that keeps it small: Snag asks yt-dlp to print machine-readable progress (--progress-template "download:SNAG_P%(progress)j", plus --print after_move:... for the final path). Both platforms just stream raw output lines into a single Dart parser, lib/engine/output_parser.dart, which has unit tests. All the flags come from one pure function, lib/engine/args_builder.dart, which is also unit-tested.

Path	What lives there
lib/engine/	yt-dlp & aria2 args, output parsing, desktop/Android engines, binary manager
lib/features/	Home, download sheet, queue, library, settings, templates, first-run setup
lib/core/theme/	Material 3 Expressive theme and spring motion
lib/l10n/	Translations (app_<locale>.arb) and locale-aware formatting
android/app/src/main/kotlin/	YtDlpBridge, DownloadService, share intent

Translations

Snag ships in English and Persian. Help bring it to your language on Hosted Weblate: no Git or Flutter needed, and anything you leave out falls back to English. See TRANSLATING.md for the details.

Contributing

PRs are welcome! See CONTRIBUTING.md, and TRANSLATING.md if you'd like to add your language. If a site is broken, first try Settings > Components > Update (or switch on nightly yt-dlp). Most breakages are fixed upstream within days.

Star history

Legal

Snag is a front-end for yt-dlp and aria2. It doesn't host, proxy or circumvent anything itself. Only download content you have the right to download, and respect each site's terms and your local laws.

Snag is licensed under the GNU GPL v3. It is inspired by Seal (an excellent Android-only app) but shares no code with it. Its building blocks:

• yt-dlp, Unlicense
• aria2, GPL-2.0+
• youtubedl-android, GPL-3.0
• FFmpeg, GPL builds from yt-dlp/FFmpeg-Builds
• Deno, MIT
• Figtree and Vazirmatn fonts, SIL OFL 1.1

Snag is a free, open-source, cross-platform GUI media, torrent, and file download manager built on top of yt-dlp, aria2c, and ffmpeg. It allows users to download video (up to 4K), audio (MP3, M4A, Opus, FLAC) from over 1,000 websites—including YouTube, Instagram, TikTok, X (Twitter), SoundCloud, Vimeo, Twitch, and Reddit—as well as BitTorrent (.torrent and magnet: links) and direct HTTP/HTTPS files of any type, without advertisements, telemetry, user accounts, or paywalls.

Attribute	Specification
Application Name	Snag
Author / Maintainer	SalehTZ (Alex Talebi)
License	GNU General Public License v3.0 (GPL-3.0)
Core Engines	yt-dlp (Stable & Nightly channels), aria2c (Torrents & multi-connection direct downloads), ffmpeg
Supported Platforms	Android 7.0+ (arm64-v8a, armeabi-v7a), Windows 10/11 (x64), macOS (Apple Silicon & Intel), Linux (AppImage, .deb, .rpm, .tar.gz)
Supported Download Types	Streaming video/audio (1,000+ sites), BitTorrent (.torrent files & magnet: URIs), and direct HTTP/HTTPS file links (any file extension)
Audio Formats	MP3, M4A, Opus, FLAC
Video Resolutions	Up to 4K (2160p) + custom format selection
Key Features	Universal download queue, automatic clipboard detection, Android Share Sheet support, drag-and-drop URL input, selective playlist queuing, SponsorBlock integration, isolated local binary management on desktop, 1-tap in-app yt-dlp updates, RTL layout & Persian (Jalali) calendar support
Official Website	https://salehtz.github.io/snag/
Source Repository	https://github.com/SalehTZ/snag