StreamTranslate

How to Add Subtitles to YouTube Live

Add automatic live subtitles to YouTube Live with StreamTranslate. Works via OBS browser source — 65 languages, zero installs.

Launch App View Setup Guide

65 languages • Under 500ms latency • No OBS plugin required

This guide shows you exactly how to how to add subtitles to youtube live in 2026. StreamTranslate makes it possible in under 60 seconds — no plugins to install, no complicated configuration. Just paste a URL into OBS and go live with real-time translated subtitles.

Step-by-Step: How to Add Subtitles to YouTube Live

Step 01
Create a StreamTranslate Account
Visit streamtranslate.live and sign up. Choose a plan — Stream Pass ($9.99 one-time) is perfect for testing, Starter at $14.99/month for regular use.
Step 02
Configure Your Languages
In the StreamTranslate dashboard, select your speaking language (e.g., English) and your target translation language (e.g., Spanish, Japanese, Portuguese).
Step 03
Copy Your Unique Browser Source URL
StreamTranslate generates a unique subtitle overlay URL. Copy it — this is what you'll paste into OBS.
Step 04
Add Browser Source in OBS
In OBS Studio: click the + button under Sources → Browser Source → paste your URL → set width to 1920, height to 1080 → click OK.
Step 05
Position & Go Live
Position the subtitle overlay at the bottom of your scene. Start streaming to YouTube Live — subtitles appear automatically in real time.

Why This Method Works Better Than OBS Plugins

Many streamers try OBS caption plugins like LocalVocal or caption browser extensions — but these frequently break when OBS updates, require manual reinstallation, and add GPU overhead to your streaming PC. StreamTranslate is cloud-based: there's nothing to install, nothing that breaks, and zero performance impact on your machine.

The browser source approach also works in Streamlabs OBS and XSplit — any streaming software that supports browser sources.

Supported Languages (65)

SpanishPortugueseFrenchGermanJapaneseKoreanChineseArabicHindiRussianItalianTurkishPolishVietnameseIndonesian+ 13 more

Frequently Asked Questions

How long does setup take?
About 60 seconds. Sign up, select languages, copy your browser source URL, paste into OBS, and go live.
Do I need to install anything?
No. StreamTranslate works via OBS browser source URL — no plugin, no download, no install.
What platforms are supported?
Twitch, YouTube Live, Kick, TikTok Live, Facebook Gaming, Rumble, and any OBS-based platform.
How much does it cost?
Plans start at $9.99 for a 12-hour Stream Pass. Monthly from $14.99.
Does it slow down my PC?
No. StreamTranslate is 100% cloud-based — zero GPU or CPU overhead on your streaming PC.

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

Also stream IRL

Also supports IRL with Moblin and the OBS audio plugin, including home and cloud OBS setups such as IRL Toolkit.

Use an OBS receiver for IRL Pro, Larix Broadcaster, PRISM Live Mobile or TVU Go. Cloud providers may need to install the plugin on your server.

Moblin · Moblin Browser Source · Cloud OBS · IRL Toolkit · OBS Studio · IRL Pro · Larix Broadcaster · PRISM Live Mobile · TVU Go · MediaMTX

IRL setup guide · Desktop setup guide