Twitch has launched limited alpha tests of vertical video streams, edging into the short-form video space dominated by TikTok, Instagram Reels, and YouTube Shorts. The new direction, first revealed at TwitchCon and surfaced by Appsensa, reflects Twitch’s ambition to stay relevant as creator preferences shift and mobile viewing accelerates.
Initial testers are just a handful of streamers, according to Appsensa’s analysis of app code cited by TechCrunch. Early features include a dedicated vertical theater mode, redesigned interface elements, and a toggle that lets users switch between classic horizontal and new vertical formats. When streamers and viewers first encounter the update, an informational dialog introduces the vertical option and clarifies its experimental status.
Key aspects of the feature, now live for selected creators, include:
- Vertical theater mode with a custom interface
- Camera and microphone permissions geared for mobile
- Seamless toggling between video formats
- Viewer education prompts explaining vertical video
Twitch is keeping the tests small for now, mirroring a careful rollout philosophy. The company reiterated at this year’s TwitchCon Rotterdam that it would rely on early feedback from a select group before broadening access. Beyond vertical streams, Twitch also previewed dual-format and high-resolution (2K) streaming trials for certain channels.
The move puts Twitch in direct competition with rivals like TikTok and YouTube, which have already captured a wide user base with vertical, algorithm-driven content feeds. Instagram’s ongoing efforts to expand Reels for creators, such as the Trial Reels feature, underscore how every major platform is doubling down on vertical, bite-sized video.
Historically, Twitch has been synonymous with long-form, landscape-oriented livestreams—mainly from gamers and creative professionals. But as vertical video becomes the default for younger audiences and viral discovery, Twitch faces mounting pressure to evolve with changing social habits, or risk fading from relevance.
For creators and brands, the early alpha test is both a signal and an opportunity. Twitch’s entrance into short-form opens new avenues for discoverability, audience segmentation, and content experimentation. Streamers who adapt quickly could gain early mover advantage in an evolving feed. Meanwhile, marketers may benefit from fresh ways to target mobile-first viewers and leverage cross-promotion between vertical and classic streams.
But the test phase also means unpredictability. Features and formats may change, and reach will be limited until a wider rollout. Creators should monitor feedback, prepare vertical-friendly content, and watch for updates as Twitch refines the viewer experience.
Twitch has confirmed that tests will expand throughout the year, though specifics remain under wraps. Broader access could arrive in stages, along with added tools for analytics and monetization. As the battle for vertical video heats up across platforms, success on Twitch may depend on how nimbly creators adapt their approach to the new mobile-first theater.

