About

SwiftUI developer building knowledge management tools for Apple ecosystem. Creator of Zin Flow, Zin Feed & DownMark. Passionate about modern iOS/macOS development and sharing SwiftUI expertise.

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Maker History

Forums

Wan Yi

22d ago

SubEnvoy - Translate subtitles for your local videos with AI

SubEnvoy focuses on a niche but common problem: local videos with subtitles you can’t understand. Unlike typical subtitle tools, it works directly with local files (MKV, MP4, SRT), extracts or generates subtitles, and translates them with AI while preserving timing and context. No video upload is required — your media stays on your device. It also handles large subtitle files efficiently, making it practical for full-length movies and series.

DownMark now on Chrome!

We ve just rolled out DownMark for Chrome after Safari support now you can cleanly capture web content into Markdown across both browsers.

With the Chrome extension you get:

  • One-click extraction of the main article content (no ads, no clutter).

  • High-quality Markdown output, ready for your notes, knowledge base, or publishing workflow.

  • Customizable shortcuts (since M is already taken in Chrome).

  • Seamless experience identical to the Safari version consistent quality across browsers.

DownMark v1.1 is now live!

Hey Product Hunt community! Just shipped a small but meaningful update to DownMark that I think you'll appreciate.

What's new in v1.1:

  • Added Cmd+Shift+M keyboard shortcut for lightning-fast content extraction

  • Optimized on-demand loading mechanism for better Safari performance

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