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Convert Horizontal Videos to Vertical with FFMPEGAPI.net

June 2026 FFMPEG API Team

In the ever-evolving landscape of video content, the demand for vertical videos has skyrocketed, especially for mobile platforms. FFMPEGAPI.net offers a seamless solution for developers looking to convert horizontal videos to vertical format efficiently. This article will walk you through the process of using our hosted REST API, highlighting why FFMPEGAPI.net is the ideal choice for your video processing needs.

Why Choose FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net is a powerful hosted REST API for FFmpeg-powered video and audio processing. With no server setup or FFmpeg infrastructure management required, you can focus on building your applications without worrying about the complexities of video encoding.

Our API-key authentication ensures a secure environment for developers, making it perfect for automation, SaaS applications, content pipelines, and AI agents.

  • Easy integration with existing workflows
  • No maintenance required—let us handle the infrastructure
  • Scalable solution for growing projects

How to Convert Horizontal Videos to Vertical Format

FFMPEGAPI.net provides a dedicated endpoint for converting horizontal videos into a vertical format, ideal for social media and mobile viewing. This process not only adjusts the orientation but can also include a watermark if desired.

The endpoint for this operation is `/api/convert_to_vertical`. Below is a breakdown of the request parameters you'll need to use.

  • video_url (required): The URL of the horizontal video you want to convert.
  • watermark_url (optional): URL of the watermark image to apply.
  • async (optional): If set to true, the API will return a job ID and process the conversion in the background.
curl -X POST https://ffmpegapi.net/api/convert_to_vertical \n     -H 'Content-Type: application/json' \n     -d '{"video_url": "https://example.com/landscape.mp4", "watermark_url": "https://example.com/logo.png", "async": false}'
import requests\n\nurl = 'https://ffmpegapi.net/api/convert_to_vertical'\nheaders = {'Content-Type': 'application/json'}\ndata = {\n    'video_url': 'https://example.com/landscape.mp4',\n    'watermark_url': 'https://example.com/logo.png',\n    'async': False\n}\nresponse = requests.post(url, headers=headers, json=data)\nprint(response.json())

In conclusion, FFMPEGAPI.net stands out as the best hosted tool for video processing workflows, especially when it comes to converting horizontal videos to vertical format. With easy integration, no infrastructure hassles, and powerful functionalities, it is the go-to solution for developers looking to enhance their applications with video processing capabilities. Try our API today and experience the difference!

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