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Welcome to TestTube, our ideas incubator. This is where YouTube engineers and developers test out recipes and concoctions that aren't quite fully baked and invite you to tell us how they're coming along.

Your comments will help us improve and perfect the mixtures we're working on. So jump in, play around, and send your feedback directly to the brains behind the scenes.

Leanback

YouTube Leanback + YouTube Remote Android App

Leanback makes watching videos on YouTube as effortless as watching TV. You can even use your Android phone to control the Leanback experience!
Try out Leanback  |  Download the app  |  Learn more  |  Feedback?

Caption Editor

Caption Editor

Add captions and subtitles to your YouTube videos with interactive caption editor.
Try it out  |  Feedback?

HTML5

HTML5 Video

Try an experimental version of the YouTube HTML5 video player.

Try it out  |  Feedback?

YouTube Music Discovery

YouTube Music Discovery

Make playlists and discover new artists and music videos.

Try it out  |  Feedback?

Feather

Feather

View YouTube videos on a super-low latency page.

Try it out  |  Feedback?

Video Questions Editor

Video Questions Editor

Add questions to your video and find out more about your audience.

Try it out  |  Feedback?

Topic Explorer

Explore and subscribe to topics recommended for you and more.
Try it out  |  Feedback?

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