Create a vertical 9:16 video from a regular horizontal or square clip. The service fills the canvas with a blurred enlarged copy and places the original video in the center without cropping.
Choose 1080x1920 or 720x1280, adjust the blur strength, keep or remove audio and limit the duration for short video platforms. The result is saved as a separate MP4 file.
This tool accepts these formats. Uncommon containers and modern web formats may be normalized or converted on the server before processing.
A damaged file or a non-standard codec can still fail even when the extension is supported.