Japanese to English Live Stream Translation

Stream in Japanese, viewers see English subtitles in under 2 seconds. Built for VTubers, Japanese gaming streamers, anime reaction — paste one URL into OBS, go live.

Start Japanese → English translation →

Who streams Japanese → English?

VTubers, Japanese gaming streamers, anime reaction. If your audience is global but your speech isn't, this is the page for you.

Why Japanese → English is harder than most pairs

Japanese has no spaces between words, three writing systems, and heavy use of context. The ASR has to segment correctly before translation can work.

What you get

• Real-time Japanese ASR via Deepgram
• English translation via DeepL or Google NMT (whichever scores higher per pair)
• Single OBS browser source URL — no plugin installation
• Customizable subtitle font, size, color, position
• Dual-language display option (Pro+) — show Japanese + English on screen at once
• Works on Twitch, YouTube Live, Kick, TikTok Live, Discord stages

Setup in 5 minutes

1. Create a free StreamTranslate account
2. Set source language to Japanese, target to English
3. Copy your unique browser-source URL
4. In OBS: Sources → Add → Browser → paste URL
5. Go live — viewers now see English subtitles overlaid on your stream

Comparison: Japanese → English options

Tool	Setup	Latency	Quality	Cost
StreamTranslate	5 min	<2s	Neural MT	$9.99 pass
LocalVocal (self-hosted)	30+ min, GPU	3-5s	Whisper-based	Free + GPU cost
YouTube Live auto-captions	n/a	2-4s	Source language only — no translation	Free
Manual translator	Hire/coordinate	Variable	Human	$25-50/hr

Try Japanese → English free →

Related

Japanese landing · All languages · Full language table · Twitch translation · OBS overlay setup