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Show HN: SubSmith – Turn your own videos into language-learning material
Understand what native speakers really say. Learn vocabulary in context. Make progress with every video you watch.
Supports all popular formats: MKV, MP4, MP3. Accurately synced subtitles, so you never adjust timing again.
Hover over any word for instant definitions. Stay in the flow while building vocabulary naturally.
Export audio clips, screenshots, and definitions to Anki. Turn content into a week of flashcards.
The Lifetime licence itself doesn't expire. Compatibility, updates, and online services depend on the supported lifetime of the product. See the Terms of Service.
These guides help you move from curiosity to a concrete immersion workflow.
Use the Japanese roadmap or the Spanish roadmap to see how many hours it typically takes to reach your next level.
If your workflow starts with downloaded shows, podcasts, or MKV files, read how local-file sentence mining works before you build your setup.
If you are comparing desktop and browser workflows, start with the Language Reactor alternative guide for the main tradeoffs around local files, crashes, and offline study.