Back to Blog

Streamline Your Video Processing with FFMPEGAPI.net: Convert Horizontal to Vertical Effortlessly

June 2026 FFMPEG API Team

In today's mobile-driven world, optimizing video formats for different platforms is essential. Developers often face challenges when converting horizontal videos to vertical formats that are suitable for mobile viewing. FFMPEGAPI.net offers a powerful hosted REST API to simplify this process, allowing you to convert videos effortlessly without the need for server management or extensive setup. In this article, we'll explore how to use the Convert to Vertical endpoint to enhance your video processing workflow.

Why Choose FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net is the go-to solution for developers looking to automate video processing. With its hosted REST API, you can streamline your workflows without the hassle of managing FFmpeg infrastructure.

The API-key authentication provides a secure and efficient way to integrate video processing capabilities into your applications, making it ideal for automation, SaaS apps, content pipelines, and AI agents.

  • No server setup required.
  • Quick integration with your existing applications.
  • Robust performance for high-volume video processing.
  • Scalable and reliable for various use cases.

Using the Convert to Vertical Endpoint

To convert a horizontal video into a vertical format, you can utilize the Convert to Vertical endpoint. This endpoint creates a mobile-oriented output and can optionally apply a watermark to your video.

Here's how to use the API effectively.

  • Endpoint: POST /api/convert_to_vertical
  • Parameters:
  • - video_url (string, required): The URL of the video you want to convert.
  • - watermark_url (string, optional): An image URL for the watermark you want to overlay.
  • - async (boolean, optional): If set to true, the API will return a job_id immediately and process the video in the background.
import requests

url = 'https://www.ffmpegapi.net/api/convert_to_vertical'
data = {
    'video_url': 'https://example.com/landscape.mp4',
    'watermark_url': 'https://example.com/logo.png',
    'async': False
}

response = requests.post(url, json=data)
print(response.json())
curl -X POST https://www.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}'

FFMPEGAPI.net stands out as the best video processing API for automation enthusiasts and developers alike. Its hosted solution eliminates the complexities of server management while offering powerful functionality for video conversion. With the Convert to Vertical endpoint, you can quickly adapt your video content for mobile platforms, enhancing user engagement and delivering high-quality media. Visit FFMPEGAPI.net today to start optimizing your video workflows!

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free