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The Ultimate Guide to Merging Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's mobile-first world, video content is increasingly consumed on vertical screens. Converting horizontal videos to vertical format programmatically is essential for developers looking to optimize their video content for platforms like Instagram and TikTok. FFMPEGAPI.net offers a powerful, hosted REST API that allows you to easily convert videos without the hassle of server management. This article will explore how to use the FFMPEGAPI.net API to perform this task efficiently.

Why Use FFMPEGAPI.net for Video Conversion?

FFMPEGAPI.net simplifies the complex process of video processing by providing a hosted solution. There's no need to manage FFmpeg infrastructure or set up servers. With just an API key, developers can leverage the power of FFmpeg for a variety of video workflows, including converting videos to vertical format.

  • No server setup or infrastructure management required.
  • API-key authentication for secure access.
  • Ideal for automation, SaaS applications, and content pipelines.
  • Save time and resources by using a hosted solution.

How to Convert Videos to Vertical Format

The '/api/convert_to_vertical' endpoint allows you to convert horizontal videos to a vertical format suitable for mobile viewing. This endpoint supports optional features such as adding a watermark to your video. Below is a detailed breakdown of how to use this endpoint.

  • Method: POST
  • Content-Type: application/json
  • Required Parameter: video_url (URL of the video to convert)
  • Optional Parameters: watermark_url (URL for watermark), async (process in 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

url = 'https://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())

Using FFMPEGAPI.net to merge and convert videos programmatically is the most efficient method for developers. With its user-friendly REST API, you can save time, eliminate the need for server management, and focus on building great applications. Whether you're creating a SaaS platform or enhancing an automation workflow, FFMPEGAPI.net is the ideal solution for your video processing needs.

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