PREVIEW · EARLY-BIRD
Turn the YouTube you love into your bilingual study material
Coherent bilingual subtitles, click-to-define lookup, AI breakdowns, pronunciation feedback, and auto-collected vocabulary — you're learning while you watch.
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vocabulary
/vəˈkæb.jə.ler.i/
N. the body of words used in a particular language.
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The product
See Murmur in action
Bilingual subtitles
Bilingual subtitlesScreenshot placeholder
Smart sentence segmentationScreenshot placeholder
AI subtitlesScreenshot placeholder
Floating subtitle windowScreenshot placeholder
Instant word lookupScreenshot placeholder
1看Watch
Coherent bilingual subtitles for the videos you love
Full summaryScreenshot placeholder
Smart chaptersScreenshot placeholder
2懂Understand
Video too long? AI gives you the full breakdown instantly
Reading modeScreenshot placeholder
Speaking modeScreenshot placeholder
3练Practice
From understanding it to saying it
Select to translateScreenshot placeholder
Built-in dictionaryScreenshot placeholder
AI vocabulary picksScreenshot placeholder
One-click saveScreenshot placeholder
4记Keep
Every word and phrase you meet, kept for later
Preview pricing. A one-time Pro Pass.
Murmur is in early preview — these are early-bird prices. Buy a fixed-length access window; nothing renews automatically.
Free
$0forever
- Bilingual subtitles on YouTube
- Murmur dictionary (examples · synonyms · word forms)
- AI-curated vocabulary per video
MOST POPULAR
Month Pass
$3.9930 days
- Unlimited library, sentence and vocabulary
- AI subtitles, unlimited
- AI video summary (smart chapters)
- Available across all your browsers
Season Pass
$9.9990 days
- Everything in Month Pass
- Best current value
- 3-day low-usage manual refund review
One-time access window. No auto-renewal. Cancel by simply not buying again.