About
Horizontal2Vertical is a browser-based tool for turning landscape video into vertical YouTube Shorts without uploading source footage to an application backend.
What it does
- Converts horizontal video to 9:16 vertical output.
- Supports crop-to-fill and keep-horizontal-with-padding framing modes.
- Adds multiple draggable text overlays.
- Exports MP4 locally in the browser.
Why local export
The product is designed for creators who want a fast repurposing workflow without sending source video to a render server. When the browser supports it, export uses WebCodecs. Otherwise it falls back to FFmpeg WebAssembly.