StreamTranslate

Real-Time Captions for Live Stream

Add real-time captions to any live stream. StreamTranslate uses AI transcription and translation to deliver captions in under 2 seconds via OBS.

Launch App View Setup Guide

28+ languages • Under 2s latency • No OBS plugin required

StreamTranslate delivers real-time captions for live stream with industry-leading speed — under 2 seconds from when you speak to when translated subtitles appear on stream. Powered by Deepgram AI transcription and neural machine translation, it's the fastest real-time stream translation solution available.

How Real-Time Stream Translation Works

StreamTranslate uses a three-stage pipeline: 1) Your stream audio is captured and sent to Deepgram's nova-2 AI model for transcription, 2) The transcription is sent to neural translation APIs to produce the target language text, 3) The translated subtitle is displayed on your stream via OBS browser source overlay. This entire process takes under 2 seconds.

Setting Up Real-Time Captions for Live Stream

Step 01
Create Account & Configure
Sign up at streamtranslate.live, select your speaking language and translation target (28+ languages available).
Step 02
Get Your Overlay URL
StreamTranslate generates a unique URL for your subtitle overlay. Copy it from the dashboard.
Step 03
Add to OBS Browser Source
Paste the URL as a Browser Source in OBS, Streamlabs, or XSplit. Position at bottom of scene.
Step 04
Go Live
Start streaming. Real-time translated subtitles appear automatically — under 2 seconds latency.

Why StreamTranslate Is Fastest

StreamTranslate uses Deepgram nova-2, one of the fastest and most accurate speech-to-text models available. Combined with optimized translation APIs and our low-latency delivery architecture, we consistently deliver subtitles in under 2 seconds — faster than any OBS plugin alternative.

Frequently Asked Questions

How fast is real-time stream translation?
StreamTranslate delivers translated subtitles in under 2 seconds using Deepgram nova-2 AI and optimized neural translation.
What is the latency of StreamTranslate?
Under 2 seconds end-to-end — from speech to translated subtitle appearing on stream.
Does real-time translation affect stream quality?
No. Cloud-based processing — zero GPU or CPU overhead on your streaming PC.
How many languages are supported?
28+ languages including Spanish, Portuguese, French, German, Japanese, Korean, Chinese, Arabic, Hindi, Russian, and more.

Ready to Get Started?

Add real-time translated subtitles to your stream in 60 seconds. No plugins, no installs.

Launch StreamTranslate
Setup Guide Pricing OBS Browser Source Guide Launch App