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.

YouTube Slam

YouTube Slam

Play a game to discover the best videos on YouTube! Compete for a spot on the leaderboards!

Comedy Slam  |  Dance Slam  |  Cute Slam  |  Bizarre Slam  |  Music Slam  |  Feedback?

Cosmic Panda: A New Experience for Videos, Playlists, and Channels

Follow the cosmic panda over the double rainbow! YouTube encourages you to watch responsibly. Enjoy.

Try it out  |  Learn more  |  Feedback?

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?

Comment Search

Comment Search

Discover videos by searching video comments.

Try it out  |  Feedback?

Insights for Audience

Insights for Audience

Discover what different audiences like doing on YouTube.

Try it out  |  Feedback?

Video Editor

Video Editor

Edit and publish videos on YouTube.

Try it out  |  Feedback?

Caption Editor

Caption Editor

Add captions and subtitles to your YouTube videos with interactive caption editor.
* need Google account linked with YouTube account (Learn more)
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?

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