Change Video Aspect Ratio with AI: Reframe Without Cropping
Switch any video between 9:16, 16:9, 1:1, and 4:3 with Luma Ray 2, which outpaints the new edges so your subject stays in frame.
How Video Reframe works
- 01
Upload your video
Drop in a clip at its current aspect ratio — for example a 16:9 YouTube cut or a 1:1 feed post.
- 02
Pick the target ratio
Choose 9:16 for TikTok and Reels, 16:9 for YouTube, 1:1 or 4:3 for feed placements. Each ratio sets the new canvas size.
- 03
Luma Ray 2 outpaints the edges
Instead of cropping, the model generates the added regions on the new sides so the original subject and action stay fully visible.
- 04
Download and publish
Download the reframed video and upload it to TikTok, YouTube Shorts, or Reels. Reframe costs 2 credits per second (minimum 6), for source clips up to 10 seconds.
Why creators use it
- Nothing gets cut off — Luma Ray 2 outpaints the new regions instead of cropping your subject out of frame
- Turn one 16:9 video into a 9:16 vertical for TikTok without re-shooting
- Cover four ratios from a single source: 9:16, 16:9, 1:1, and 4:3
- Repurpose one clip across TikTok, YouTube, and feed instead of editing each version by hand
- Per-second pricing (2 credits per second (minimum 6)) means you only pay for the length of the clip you reframe
- Keeps the original motion and framing intact while extending the canvas
Use cases
- Convert a 16:9 YouTube video into 9:16 verticals for TikTok and Reels
- Resize landscape product demos into 1:1 squares for Instagram and Facebook feeds
- Repurpose a single ad creative across every platform's required ratio without re-editing
- Adapt 4:3 archival or screen-recorded footage into a modern vertical format
Frequently asked questions
How do I change a video's aspect ratio without cropping it?
Use Video Reframe, which runs on Luma Ray 2. Instead of cropping the sides to fit a new ratio, the model outpaints the added regions — it generates new pixels on the edges so your subject stays fully in frame. You can convert between 9:16, 16:9, 1:1, and 4:3.
Can I turn a horizontal 16:9 video into a vertical 9:16 video for TikTok?
Yes. Upload your 16:9 clip and choose 9:16 as the target. Luma Ray 2 fills the new top and bottom areas by outpainting rather than zooming or cropping, so the original action is preserved in the taller vertical frame used by TikTok and Reels.
What aspect ratios does Viralance Video Reframe support?
Four ratios: 9:16 (vertical, for TikTok / Reels / Shorts), 16:9 (horizontal, for YouTube), 1:1 (square), and 4:3. You can reframe a single source video into any of these.
How is outpainting different from just cropping or adding black bars?
Cropping removes parts of your footage to fit the new shape, and black bars leave empty space. Outpainting with Luma Ray 2 instead generates new image content in the added regions, so the frame is filled and the original subject is never cut out.
How much does it cost to reframe a video?
Video Reframe costs 2 credits per second (minimum 6), so a 10-second clip is 20 credits. Source clips can be up to 10 seconds; the duration is measured server-side before you are charged.
Can I repurpose one video for TikTok, YouTube, and feed at once?
Yes — that's the main use case. Reframe one source clip into 9:16 for TikTok and Reels, 16:9 for YouTube, and 1:1 or 4:3 for feed posts, instead of cutting separate versions for each platform by hand.