The usual YouTube Shorts size is 1080×1920 pixels in a 9:16 vertical frame. A correctly framed video fills the mobile screen and leaves room for the platform interface. Use the YouTube Shorts resizer to prepare a vertical delivery copy, then check the result on a phone before publishing.
What size are YouTube Shorts?
Use 1080×1920 pixels and a 9:16 aspect ratio as the common target for a vertical Short. The frame is designed for full-screen mobile playback. Confirm the latest YouTube requirements when a specific upload or monetization workflow matters, because platform specifications can change.
The frame size is not the same as the file size. A 1080×1920 video can still be too large if it is long, has a high bitrate, or contains complex motion. Use the video compressor after resizing when the delivery limit requires a smaller file.
How to resize a video for YouTube Shorts
1. Choose the source and destination
Start with the original video and decide whether the important content is already inside a vertical safe area. A vertical source can usually be resized directly; a horizontal source needs reframing so the subject is not reduced to a tiny strip.
2. Crop the source when the shape is wrong
Use the video cropper to create a deliberate 9:16 composition from a landscape clip. Keep faces, products, subtitles, and key action away from the extreme top and bottom edges where interface controls may cover them.
3. Apply the Shorts preset
Open the YouTube Shorts resizer, select the source, and use the 1080×1920 vertical output. The resize runs in your browser and does not add a watermark to the delivery frame.
4. Review mobile playback
Check the beginning, middle, and end on a phone. Look for cropped faces, unreadable text, missing product details, and audio synchronization. A frame that looks fine in a desktop editor can feel too tight when controls and captions appear on the mobile player.
YouTube Shorts aspect ratio and safe framing
9:16 describes the shape, while 1080×1920 describes the pixel dimensions. You can create a smaller 9:16 version for a draft or test, but a larger source gives the final export more useful detail. Do not stretch a 16:9 video into 9:16; crop or reframe it instead.
Keep the main subject near the center unless the story intentionally uses the sides. Leave space for captions and interface elements, and avoid placing critical text at the extreme edges. If you are designing a title card, use a large font and high contrast so it remains readable on a small screen.
How to reduce a Shorts file size
Resize the frame first, trim unused pauses with the video trimmer, then compress the final delivery copy. This sequence removes unnecessary pixels and seconds before the encoder spends bitrate on the result. Avoid repeatedly compressing the same output; keep the original for another export.
If the output still exceeds a platform limit, reduce the target size gradually and review fast motion, faces, gradients, and text. A slightly larger readable Short is more useful than a tiny file with visible artifacts.
Common YouTube Shorts problems
The video has black bars
The source frame and target frame do not match. Crop or reframe to 9:16 before resizing, or intentionally design the bars as part of the composition.
The subject is cut off
The crop box was positioned without considering the vertical frame. Reopen the source, move the crop to protect the important content, and check the result on a phone.
Captions are covered
Captions or controls may occupy parts of the Shorts interface. Keep critical text inside a safe central area and preview the complete published layout when possible.
The file is still too large
Trim unused sections, make sure the output is 1080×1920 rather than a larger frame, and use the video compressor for the final target-size export.
FAQ
What is the YouTube Shorts size?
1080×1920 pixels with a 9:16 aspect ratio is the common target for full-screen vertical Shorts. Verify the current platform guidance before publishing.
Can a horizontal video become a YouTube Short?
Yes. Crop or reframe the landscape source to 9:16 first, keep the subject inside the safe area, and then resize it to 1080×1920.
Should I resize or compress a Short first?
Resize and crop to the correct frame first, trim unnecessary time, then compress the delivery copy. This avoids spending bitrate on pixels and seconds that will not be published.
How do I make a Short fill the phone screen?
Use a 9:16 vertical frame, commonly 1080×1920, and reframe horizontal footage rather than stretching it. Check the result on a phone with the platform controls visible.
Continue to the video tools
Use the YouTube Shorts resizer for the 1080×1920 preset, the video cropper for framing, and the video compressor for the final file-size target.