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Whisperr

Japanese ↔ English

Translate Japanese to English by Voice in Real Time

For business meetings, travel in Japan, or watching anime and Japanese shows, Whisperr translates spoken Japanese to English — and English back to Japanese — live, with about 0.2 seconds of latency. Two-way, auto-detecting, and ready for conversations, calls, and video.

Start Translating FreeSee how it works
~0.2s
Average latency
Two-way
Japanese ⇄ English
Auto-detect
No manual switching
100+
Other languages too

How to translate Japanese and English live

Three ways to use it — face-to-face, on a call, or while watching video.

  1. 1

    Face-to-face conversation

    Place your phone between you and the other person. Whisperr auto-detects Japanese and English and shows the two-way translation on screen, or speaks it aloud — so you take turns naturally.

  2. 2

    Online calls (tab capture)

    On a Zoom, Teams, Meet, or Discord call, join in a Chrome tab and capture the audio with the Whisperr Chrome Extension or Web App to read translated Japanese live.

  3. 3

    Video & entertainment

    Watching Japanese video? Use floating subtitles on iOS & Android or browser tab capture to get real-time English subtitles.

Whisperr translating Japanese to English in real time on an iPhone

Built for live conversation

Everything you need for Japanese ↔ English

Real-time, two-way voice translation — not a file-based or one-way tool.

Two-way, auto-detect

Speak Japanese or English and Whisperr detects which and translates the other way — no toggling.

Real-time

Translation in about 0.2 seconds, fast enough for natural back-and-forth.

Dialects & accents

Handles polite and casual registers and natural conversational Japanese, including business keigo.

Read or hear it

Show the translation on screen or have Whisperr speak it aloud.

Every device

Native iOS, iPad, Mac, and Android apps, plus a web app and Chrome extension.

Broadcast Mode

Share a room link so others read your translated Japanese or English in their browser — no app needed.

Speak Japanese and English without the barrier

Start your next conversation, call, or video with live translation — free to try.

Start Translating Free

Japanese to English translation FAQ

Can I translate Japanese to English by voice in real time?+
Yes. Whisperr listens to spoken Japanese and shows or speaks the English translation live, with about 0.2 seconds of latency — in person, on calls, or over video.
Does it translate both directions?+
Yes. It auto-detects Japanese and English and translates each into the other automatically, so a two-way conversation just flows.
Does it handle polite (keigo) and casual Japanese?+
Yes. Whisperr handles polite business Japanese (keigo) as well as casual everyday speech.
Can I use it to watch anime or Japanese TV?+
Yes. Use floating subtitles on iOS & Android or browser tab capture to get real-time English subtitles for anime and Japanese shows.
Where can I use it?+
Face-to-face (microphone), on video calls (browser tab capture), and while watching video (floating subtitles on iOS & Android or tab capture).
Is it free?+
You can start for free. Unlimited real-time use is available on a low flat annual plan, with no per-minute metering or per-language caps.

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Ready to translate Japanese and English live?

Break the language barrier in any conversation, call, or video.

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