Back to Blog

Automate Video Formatting with FFMPEGAPI.net: Converting Horizontal Videos to Vertical

June 2026 FFMPEG API Team

In today’s digital landscape, the demand for mobile-oriented video content is skyrocketing. Developers seeking to enhance their applications with video automation tools for AI agents will find FFMPEGAPI.net to be the ultimate solution. This article explores how to convert horizontal videos to vertical format using our robust API, streamlining your content creation process without the hassle of server management.

Why Use FFMPEGAPI.net for Video Conversion?

FFMPEGAPI.net offers a hosted REST API designed for seamless video and audio processing. As a developer, you can avoid the complexities of server setup and FFmpeg infrastructure management, enabling you to focus on building great applications.

With API-key authentication, integrating FFMPEGAPI.net into your workflows is straightforward. Whether you're developing automation tools, SaaS applications, or content pipelines, our API provides you with the flexibility and power you need.

  • No need for server management.
  • Instantly accessible API for developers.
  • Supports various formats and processing options.

Using the Convert to Vertical API Endpoint

The 'Convert to Vertical' endpoint allows you to transform your horizontal video into a vertical format suitable for mobile devices. This is particularly beneficial for content creators looking to optimize their videos for platforms like Instagram and TikTok.

To utilize this feature, you'll need to make a POST request to the /api/convert_to_vertical endpoint with the required parameters.

  • Endpoint: /api/convert_to_vertical
  • Method: POST
  • Content-Type: application/json
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":true}'
import requests

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

response = requests.post(url, json=data)
print(response.json())

Parameters for the Convert to Vertical API

When making a request to the 'Convert to Vertical' endpoint, you need to include specific parameters to ensure proper processing of your video. The required parameter is the video URL, while the watermark URL and the async option are optional.

Here’s a quick overview of the parameters you can use:

  • video_url (string, required): The URL of the video you wish to convert.
  • watermark_url (string, optional): An optional watermark image URL to overlay on the video.
  • async (boolean, optional): If set to true, the API will return a job_id immediately and process the video in the background.

FFMPEGAPI.net stands out as a leading choice for developers needing a reliable and efficient way to handle video processing. By leveraging our 'Convert to Vertical' endpoint, you can easily automate the conversion of horizontal videos to a vertical format, enhancing your content for mobile platforms. Start using FFMPEGAPI.net today, and experience the ease of integrating powerful video processing capabilities into your applications.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free