Chrome Extension · Free

Speak to the world,
in every language.

SubFlow translates your YouTube video titles and uploads multilingual subtitles to 22 languages — one click, no manual work.

Add to Chrome — It's Free Privacy Policy
22 Languages
1 Click
0 Servers

What it does

Everything your channel needs to go global

🌍

22 Languages

Spanish, Japanese, Korean, Hindi, Arabic, French, German and 15 more — processed all at once in a single run.

🎬

Subtitle Upload

Downloads YouTube's machine-translated captions and publishes them as proper subtitle tracks your audience can enable.

📝

Title Translation

Updates your video's localized titles so every region's search index shows your content in their native language.

🔐

Secure by Design

PKCE authorization — your credentials are exchanged via OAuth and never stored on any third-party server.

Up and running in under two minutes

01

Install SubFlow

Add the extension from the Chrome Web Store. No signup or account needed to get started.

02

Connect your channel

Authorize your YouTube channel with Google OAuth. Supports multiple channels and Brand Accounts.

03

Paste a video URL

Drop in your YouTube video URL or ID. SubFlow extracts it automatically from the page you're on.

04

Hit Start

SubFlow translates your titles and uploads subtitles to all 22 languages. Watch the progress live.

Ready to reach
a global audience?

Free to use. No server. Just install and start.

Add SubFlow to Chrome