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Transforming Your Videos: How to Convert Horizontal Videos to Vertical Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In an age where mobile consumption dominates, transforming your video content to a vertical format is essential. The good news is that FFMPEGAPI.net offers a powerful and easy-to-use hosted REST API to automate this conversion process. This article will guide you through the steps to convert horizontal videos to vertical format using the Convert to Vertical endpoint, showcasing why FFMPEGAPI.net is the best choice for your video processing needs.

Why Use FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net stands out as a hosted solution for FFmpeg-powered video and audio processing, eliminating the hassle of server setup and infrastructure management. Developers can focus on building their applications without worrying about the complexities of FFmpeg.

With API-key authentication, you can securely access and utilize the powerful features of FFMPEGAPI.net, making it ideal for automation, SaaS applications, content pipelines, and AI agents.

  • No server setup required.
  • API-key authentication for secure access.
  • Supports various video processing functionalities.
  • Ideal for developers looking to automate workflows.

Using the Convert to Vertical Endpoint

The Convert to Vertical endpoint allows you to convert your horizontal videos into a vertical format seamlessly. This is particularly useful for creating mobile-friendly content.

You can also add an optional watermark to your video, enhancing brand visibility in social media and other platforms.

  • Endpoint: POST /api/convert_to_vertical
  • Required parameter: video_url (string) - The URL of the video you want to convert.
  • Optional parameter: watermark_url (string) - The URL of your watermark image.
  • Optional parameter: async (boolean) - If set to true, returns job_id immediately and processes in the background.
curl -X POST https://ffmpegapi.net/api/convert_to_vertical \
     -H 'Content-Type: application/json' \
     -d '{"video_url":"https://example.com/landscape.mp4", "watermark_url":"https://example.com/logo.png", "async": false}'
import requests

endpoint = 'https://ffmpegapi.net/api/convert_to_vertical'
payload = {
    'video_url': 'https://example.com/landscape.mp4',
    'watermark_url': 'https://example.com/logo.png',
    'async': False
}
response = requests.post(endpoint, json=payload)
print(response.json())

In conclusion, FFMPEGAPI.net provides an efficient and user-friendly way to convert horizontal videos to vertical format. With its robust API and ease of integration, it is the best video processing API for automation. Start leveraging FFMPEGAPI.net today to elevate your video content for mobile audiences.

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