COMING SOONNot available yet. This page shows how it will work.VOCALSTACK FOR YOUTUBE LIVE

Live captions on your YouTube stream

Paste one link from YouTube Studio into your VocalStack broadcast. While you are live, your viewers get captions from YouTube’s own CC button, on a computer, a phone or a TV. Nothing to install, for you or for them.

See how to set it up

COMING SOON · NOTHING TO INSTALL · NO GOOGLE SIGN-IN

youtube.com/watch?v=northwind-live

LIVE

Good morning, and welcome to the keynote.

LIVECC

Northwind Product Keynote 2026Northwind Media1,284 watching now

YouTube’s own CC button

Viewers turn captions on the way they always do, on a computer, in the YouTube app or on a TV. Nothing for them to install.

One link, no sign-in

YouTube Studio gives each stream a captions link. Paste it into your broadcast. No Google account to connect and no API key.

Keep how you stream

It works with whatever already feeds your broadcast: your streaming software, the VocalStack OBS plugin or the browser extension.

As spoken or translated

Caption the stream in the language you speak, or in one translation of it.

HOW TO SET IT UP

Four steps before you go live

You do this once for each YouTube stream. VocalStack does the rest while you are live.

01In YouTube Studio, open your stream’s settings, turn on Closed captions and choose Post captions to URL.

02Copy the Captions Ingestion URL that YouTube shows.

03In the VocalStack Dashboard, open your broadcast’s settings and paste the URL.

04Go live. VocalStack posts each finished caption line to YouTube, and your viewers turn captions on with CC.

Use Normal or Low latency

YouTube does not take captions on streams set to Ultra-low latency.

IN YOUTUBE STUDIO

Closed captionsOn

Caption sourcePost captions to URL

Captions Ingestion URL

http://upload.youtube.com/closedcaption?cid=…Copy

IN YOUR VOCALSTACK BROADCAST

YouTube captions URL

http://upload.youtube.com/closedcaption?cid=…Pasted

Caption languageAs spoken

WORKS WITH

However you already stream

The captions come from your VocalStack broadcast, so anything that feeds the broadcast works. Keep streaming to YouTube as you do today.

Any streaming software

Send your stream to the broadcast over RTMP, with the stream key from the broadcast’s settings.

The OBS Studio plugin

Pick the broadcast in the VocalStack dock in OBS and go live.

The browser extension

Go live from the VocalStack side panel in Chrome or Edge.

About the OBS plugin About the browser extension

LANGUAGES

One language on YouTube, every language on VocalStack

YouTube shows one caption language for each stream. Viewers who want another can follow the same broadcast on its VocalStack share link.

On YouTube

Captions in the language you speak, or in one translation you choose for the stream.

On the share link

Each viewer picks their own language at live.vocalstack.com, on a phone or a computer, with nothing to install.

Frequently Asked Questions

: Not yet. YouTube Live captions are coming soon, and this page describes how they will work.
: No. The Captions Ingestion URL that YouTube Studio gives your stream is all VocalStack needs. There is no Google sign-in, no account linking and no API key.
: No. They turn captions on with YouTube’s own CC button, on a computer, in the YouTube app or on a TV.
: Anything that already feeds your VocalStack broadcast: any streaming software over RTMP, the VocalStack OBS plugin, or Go live in the browser extension.
: YouTube takes one caption language for each stream: the language you speak, or one translation. Viewers who want another language can follow the broadcast on its VocalStack share link, where each viewer picks their own.
: Check that the stream uses Normal or Low latency. YouTube does not take captions on Ultra-low latency. Viewers also need to turn captions on with CC.
: Once for each stream. YouTube gives each stream its own Captions Ingestion URL, so paste the new one into your broadcast before a new stream.
: A few seconds. VocalStack sends each caption line once it is finished, and YouTube shows it on the stream.

See how to set it up