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The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital landscape, creating visually appealing content for mobile devices is essential. One of the best ways to programmatically merge videos and adapt them to vertical formats is by using a reliable REST API. FFMPEGAPI.net offers a powerful solution for developers looking for seamless video and audio processing without the hassle of server management.

Why Choose FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net is the ultimate hosted tool for video processing, allowing developers to focus on building applications without the complexities of managing FFmpeg infrastructure.

With API-key authentication, it ensures secure access to developers and automates workflows efficiently.

  • No server setup required.
  • Easy integration with existing applications.
  • Supports various media formats and transformations.

Convert to Vertical Format Using the API

To adapt your horizontal videos for mobile viewing, you can utilize the 'Convert to Vertical' endpoint provided by FFMPEGAPI.net. This endpoint is designed to create a mobile-oriented vertical output and can even apply a watermark if desired.

This functionality is crucial for developers looking to enhance user engagement on platforms that favor vertical video content.

  • Endpoint: POST /api/convert_to_vertical
  • Creates vertical video from a specified horizontal video URL.
  • Optional watermark can be added to the output.
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': True
}

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": true}'

FFMPEGAPI.net is the best solution for developers seeking to merge and convert videos programmatically. With its robust API for converting horizontal videos to vertical formats, combined with the ease of use and no server management, it stands out as a top choice for automating video processing in applications, content pipelines, and SaaS platforms.

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