Dub your videos into Japanese
Paste a YouTube link or upload your video. SpeakSwap dubs it into natural Japanese using AI voice cloning — your content reaches Japan's 120M+ viewers while sounding authentically Japanese. Background music stays intact. Free starter credits. No subscription.
How It Works
Paste your YouTube URL or upload a video
Works with any YouTube video or uploaded clip. SpeakSwap extracts the speech audio automatically — no manual audio editing needed.
Select Japanese as your target language
Choose from multiple natural Japanese AI voices. SpeakSwap handles kanji pronunciation, natural intonation, and pitch accent for clear, authentic Japanese speech.
Download your Japanese-dubbed audio
In a few minutes, your video is dubbed into natural Japanese. Voice cloning preserves the original speaker's tone, and background music stays untouched.
Frequently Asked Questions
Japan has one of the world's largest YouTube audiences — over 120 million Japanese speakers, with strong demand for tutorials, gaming, educational, and product review content in their native language. Dubbing into Japanese opens that market without re-recording your voiceover.
Yes. SpeakSwap uses advanced AI voice synthesis for Japanese, handling kanji, hiragana, and katakana correctly — including pitch accent and natural intonation. The output sounds natural, not robotic.
Single-speaker videos work best — tutorials, vlogs, product reviews, gaming commentary, educational content, and explainers. SpeakSwap currently handles one speaker at a time most accurately.
Yes. SpeakSwap uses AI vocal separation to isolate speech from background audio, dubs the speech into Japanese, then mixes them back — so music, sound effects, and ambient audio stay intact.
Yes — new accounts get free starter credits to try dubbing a short clip, no credit card required. For full-length videos, pay-as-you-go packs start at $5. Credits never expire and work across every tool.