Learn what you like
Murmur turns the materials you love into bilingual language material — read along, click to look up, and save what matters.
The vocabulary of a language is infinite.
语言的词汇是无穷的。
A bilingual subtitle bar over the native player.
Murmur rests softly above the YouTube player. Original and translated lines stay aligned, and you can pause on any unfamiliar phrase without leaving the video.
Review on the open web.
Open the Murmur dashboard from any browser. Your saved videos, sentences, and vocabulary are right there, with the original moment one click away. There's no separate mobile app to install.
One click to capture what matters.
Click a word to save it. Bookmark a sentence. Add a video to your library. Murmur stitches every capture back to where you first heard it.
What you actually get today.
Every line below maps to something already shipping in the preview.
Bilingual subtitles on YouTube
A clean bilingual subtitle bar runs underneath the native player, translated by Gemini Flash with episode-level caching.
Murmur dictionary, built in
Click any word for examples, synonyms, and word forms — with native audio, no LLM round trip required.
Capture what matters, replay later
Save a word, a sentence, or a whole video with one click. Every capture stays linked to the moment it came from.
Subtitle bar that follows you
The Picture-in-Picture subtitle window keeps your reading layer visible while you switch tabs or take notes.
AI subtitles
When the default reads awkwardly, ask AI to re-translate that sentence with full surrounding context. A daily quota on Free, unlimited on Pro.
AI video summary (smart chapters)
See the gist of a 10-minute talk or a 90-minute lecture in seconds, broken into smart chapters you can jump to.
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.
- Bilingual subtitles on YouTube
- Murmur dictionary (examples · synonyms · word forms)
- AI-curated vocabulary per video
- Unlimited library, sentence and vocabulary
- AI subtitles, unlimited
- AI video summary (smart chapters)
- Available across all your browsers
- 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.