Watching wide 16:9 landscape video on a smartphone screen with ugly black letterboxing forces viewers to squint and leads to high swipe-away rates. With ReelSlice AI, you can instantly reframe horizontal landscape video into vertical 9:16 format with vibrant ambient blur backgrounds that fill modern smartphone screens.
Eliminate black bars. Add aesthetic ambient blur. Keep action centered.
Convert Video to 9:16 NowThe original video is placed in the center of the vertical canvas. Simultaneously, a magnified, heavily blurred copy of the video plays behind it, generating dynamic color lighting synchronized with the video's motion.
For footage where the primary subject remains centered (such as talking head interviews or gaming reactions), zoom in directly to fill the entire 9:16 frame without letterboxing.
Place your video on a sleek dark slate background with designated spaces for headline banners ("Podcast Episode 12") and bottom subtitles or social handles.
When publishing vertical shorts to YouTube, TikTok, and Instagram Reels, platform UI controls (like, comment, share buttons on the right, and account captions at the bottom) often cover critical video information.
ReelSlice AI includes interactive Safe Area Guides directly in the preview canvas: