SubSmith – Immersive Language Learning Platform
SubSmith: Learn languages from the content you love.
Understand what native speakers really say. Learn vocabulary in context. Make progress with every video you watch.
7-day free trial • No credit card
How it works
From file to fluency in three steps
Watch
Drop any file. Get accurate subtitles.
Supports all popular formats: MKV, MP4, MP3. Accurately synced subtitles, so you never adjust timing again.
!Image 1: Drop any file. Get accurate subtitles.
Learn
Stop pausing to check Google Translate
Hover over any word for instant definitions. Stay in the flow while building vocabulary naturally.
!Image 2: Stop pausing to check Google Translate
Export
Mine sentences in one click
Export audio clips, screenshots, and definitions to Anki. Turn content into a week of flashcards.
!Image 3: Mine sentences in one click
Cheaper than a textbook. More effective than a class.
7-day free trial. No credit card required.
→Annual
$15/ year
Billed annually. Cancel anytime.
- Learn from any video or audio file
- 99+ languages supported
- Hover dictionary with instant definitions
- One-click Anki flashcard export
- Edit timestamps and transcripts
- Export subtitles (SRT) or plain text
→Lifetime licence
$40 one-time
Best value - one payment, no renewals
- Learn from any video or audio file
- 99+ languages supported
- Hover dictionary with instant definitions
- One-click Anki flashcard export
- Edit timestamps and transcripts
- Export subtitles (SRT) or plain text
The Lifetime licence itself doesn't expire. Compatibility, updates, and online services depend on the supported lifetime of the product. See theTerms of Service.
Frequently Asked Questions
Everything you need to know about SubSmith
Where to go next
These guides help you move from curiosity to a concrete immersion workflow.
Study from local files, not just streaming sites
If your workflow starts with downloaded shows, podcasts, or MKV files, readhow local-file sentence mining worksbefore you build your setup.
Switch away from browser-only tools cleanly
If you are comparing desktop and browser workflows, start with theLanguage Reactor alternative guidefor the main tradeoffs around local files, crashes, and offline study.