Zinc

Desktop video downloader with AI subtitles. Built with Tauri + React.

Disclaimer

This software is provided as-is. We're not responsible for any hardware damage or other issues that may arise from using Zinc. Use at your own risk.

What it does

• Download videos from YouTube and other platforms via yt-dlp
• Pick your quality - 4K, 1080p, 720p, audio-only, whatever
• Convert to MP4, WebM, or MKV
• Auto-generate subtitles using local Whisper models
• Supports 99+ languages

Transcription

Timed subtitles currently use Whisper only:

• Whisper models range from tiny (75MB) to large-v3 (3.1GB)
• Subtitle timing is generated from Whisper token timestamps
• Two subtitle styles are available: sentence and word
• CPU subtitle transcription is not currently supported

Requirements

• ffmpeg in your PATH
• CUDA Toolkit 12.x for local subtitle transcription on Windows

Dev

Prerequisites

Windows:

• Bun
• CUDA Toolkit 12.x
• Visual Studio 2022 with C++ Desktop workload
• LLVM/Clang (set LIBCLANG_PATH env var)

macOS:

• Bun
• Xcode Command Line Tools (xcode-select --install)
• Rust (curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh)
• cmake (install from cmake.org or brew install cmake)

bun install
bun run tauri:dev
bun run tauri:build
bun run lint
bunx tsc -b

Tech

React 19 + TypeScript + Tailwind + Tauri 2 + Rust + whisper-rs + yt-dlp + ffmpeg

License

MIT