Interactive Transcripts
Segments highlight as audio plays. Tap any word to translate. Loop segments, adjust speed, skip by sentence.
A solo project by Amit at 231self
Turn your podcast into a Japanese learning platform
Upload an episode. Get interactive transcripts, vocabulary, flashcards, quizzes, shadowing, and AI conversation — automatically.
Free for creators. Always.
How It Works
1
Upload
Audio file, YouTube URL, or RSS feed
2
Processes
Transcripts, vocab, quizzes — all automatic
3
Share
Invite link. Listeners join in one click
What's Inside
Smart Vocabulary
Words auto-extracted from each episode with JLPT level, readings, kanji breakdown, pitch accent, and frequency across episodes.
SRS Flashcards
Auto-generated decks from episode vocabulary. Cards adapt to your memory — appear more when you forget, less when you don't. Anki export.
Adaptive Quizzes
Questions pop up during playback and adjust to how you're doing. Five types, three difficulty levels, streaks, and per-podcast leaderboards.
Audio Shadowing
Listen to a segment, record yourself repeating it, see how close you got. AI coaching tells you what to improve.
Select-to-Translate
Highlight any word or phrase for instant translation with reading and part of speech.
Content Import
Upload audio, paste a YouTube URL (captions auto-extracted), or subscribe to an RSS feed for auto-import.
Creator Tools
Trackable invite links, subscriber management, Patreon integration. Guests can try free for 72 hours without signing up.
KikiTalk
Conversation practice — in the host's voice
Practice speaking with an AI that uses the podcast host's cloned voice. Three modes — free chat, episode discussion, vocab practice. Five difficulty levels. Real-time grammar correction.
✗ 面白いだった
→
面白かった
Building in Public
One-person project. Here's what shipped recently and what's next.
SHIPPED
Voice Cloning + KikiTalk
Listeners talk to an AI that uses the podcast host's cloned voice. Five difficulty levels, real-time grammar correction.
SHIPPED
Audio Shadowing
Listen, repeat, get scored. Word-level accuracy comparison with AI coaching feedback.
SHIPPED
Guest Access
72-hour free trial, no signup. Share a link, anyone can try immediately.
SHIPPED
RSS Feed Import
Subscribe to any podcast RSS. Episodes auto-import with deduplication.
SHIPPED
Adaptive Quiz Difficulty
Difficulty adjusts to your accuracy. Streak bonuses and per-podcast leaderboards.
NEXT
Kanji Practice
Kanji study sourced from words in your episodes.
NEXT
Grammar Drills
Grammar patterns from real podcast content.
Under the Hood
Claude
→
Conversation AI, quiz generation, shadowing coaching
Gemini
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Transcription, translation
ElevenLabs
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Text-to-speech, voice cloning
Pyannote
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Speaker diarization
SM2
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Spaced repetition algorithm
FastAPI
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Python backend, PostgreSQL, SQLAlchemy
React
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TypeScript, Tailwind, Vite
Free to start
Free tier includes 30 min KikiTalk, 100 translations, and 60 min transcription per month. Flashcards, quizzes, and shadowing included. Paid plans coming soon.