Dual & multi-layer subtitles
Stack Japanese with a translation line. Toggle layers live while you watch—without leaving the player.
Japanese study player · 影
Kage
Learn Japanese from any video
or paste a link
Stays on this deviceMKV · MP4 · WebM · MOVLinks work without an account
Built for serious immersion
- JP + EN layers
- Romaji
- Multi-audio MKV
- Immersion mode
- Sentence mining
- Community catalog
- Local-first
- No account for local
Built for immersion
Everything you need between the ear and the dictionary
Kage is a study player—not a generic video site. Layers, tracks, and tools stay under your control.
Natural Hepburn romaji
Convert Japanese tracks to romaji in a local worker. Keep the original text; study the reading underneath.
Real MKV tracks
Multiple audio streams and embedded text subs (ASS/SRT). Pick Japanese audio, Spanish, English—whatever is in the file.
Immersion mode
Hide layers until you click to reveal. Train yourself to hear first, then confirm with text.
Sentence mining
Save lines with timestamps while watching. Search Japanese, romaji, and meanings later in your library.
Community catalog
Browse free Japanese subtitle tracks for shows and movies. Attach them, then convert to romaji.
Study layers
Japanese, romaji, and translation—stacked the way you learn
Toggle immersion, loop a cue, or mine a sentence without tabbing out. The transcript stays in sync with playback.
- Layer chips for each language + romaji
- Transcript virtualized for long episodes
- Seek by cue; resume position across sessions
episode · multi-track.mkv
日本語を勉強しています。
Nihongo o benkyō shite imasu.
I am studying Japanese.
JapaneseEnglishRomaji
12:04
Audio
- Japanese · Opus
- English · AAC
Subtitles
- Japanese · ASSon
- Spanish · SRTon
- Romaji · generatedoff
Real files
Audio and subtitles that actually live in your MKV
Open multi-track anime releases without re-encoding. Choose the spoken Japanese track and stack up to three subtitle languages on the video.
- Multiple embedded audio streams
- ASS / SRT text tracks demuxed in-browser
- External subtitle files anytime
Study loop
Hear first. Confirm. Mine. Repeat.
Immersion mode hides text until you are ready. Save the line you just understood and keep a private sentence library.
Immersion mode
Click the video to reveal hidden lines when you need a hint.
Sentence mining
One action saves Japanese, romaji, translation, and timestamp.
Live transcript
Seek by cue and follow every line while you watch.
On-device romaji
Natural reading—without uploading your media
Hepburn romaji runs in a local worker from your Japanese subtitle track. Convert whole files in the converter, or generate while you watch.
- Lindera-powered tokenization in a Web Worker
- Original Japanese stays; romaji is a separate layer
- Export generated romaji as SRT when you want a file
worker · local
Japanese
日本語を勉強しています。
Romaji
Nihongo o benkyō shite imasu.
Translation
I am studying Japanese.
Community
Subtitles for the shows you already watch
Browse public Japanese tracks without an account. Sign in only when you want to upload or sync.
Community subtitles
Browse free Japanese tracks — no account needed
Download community files and attach them while you study with a local video.
Open subtitle catalogLocal-first by design
Videos you open on this device stay on this device. Sign in for Google Drive, synced sentences, and community uploads—not to host your library on our servers.
Local filesOptional DrivePrivate study data
How it works
Three steps from file to study loop
- 01
Open a video
Drop a local file, paste a public URL, or pull from Google Drive. No upload of your media for local playback.
- 02
Choose your tracks
Select audio and up to three subtitle slots. Turn on romaji when a Japanese text track is available.
- 03
Watch and mine
Follow the transcript, save sentences, and build a private study library over time.
Start now
Open a video. Keep studying.
No account required for local files and public links. Create one when you want Drive and sync.