Back to Blog

The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital landscape, merging videos programmatically can streamline content creation for developers, automation, and SaaS applications. With FFMPEGAPI.net, you can harness the power of FFmpeg without the hassle of server setup or managing complex infrastructure. This article explores how to use the FFMPEGAPI.net API to convert horizontal videos into vertical format, making it a perfect solution for mobile-oriented content.

Understanding Video Format Conversion

Video format conversion is a crucial task in multimedia processing, especially when adapting content for different platforms. A common requirement is converting landscape (horizontal) videos to portrait (vertical) formats, which is essential for social media sharing and mobile viewing.

  • Adapt content for mobile audiences
  • Enhance user engagement
  • Ensure consistency across platforms

Using the FFMPEGAPI.net Convert to Vertical Endpoint

FFMPEGAPI.net provides a straightforward API to convert horizontal videos into vertical formats. With the '/api/convert_to_vertical' endpoint, you can easily create mobile-optimized videos.

To use this endpoint, you need to provide the URL of the video you wish to convert and, optionally, a watermark image. The API also supports asynchronous processing, allowing you to perform conversions in the background.

  • Endpoint: POST /api/convert_to_vertical
  • Input parameters: video_url, watermark_url (optional), async (optional)
  • Output: Mobile-oriented vertical video
curl -X POST https://www.ffmpegapi.net/api/convert_to_vertical \n-H 'Content-Type: application/json' \n-d '{"video_url": "https://example.com/landscape.mp4", "watermark_url": "https://example.com/logo.png", "async": true}'
import requests \n \nurl = 'https://www.ffmpegapi.net/api/convert_to_vertical' \ndata = { \n    'video_url': 'https://example.com/landscape.mp4', \n    'watermark_url': 'https://example.com/logo.png', \n    'async': True \n} \nresponse = requests.post(url, json=data) \nprint(response.json())

Why Choose FFMPEGAPI.net?

FFMPEGAPI.net stands out as the best hosted tool for video processing because it requires no server setup or FFmpeg infrastructure management. With API-key authentication, developers can easily integrate video processing into their applications.

Moreover, its robust capabilities cater to a variety of use cases, from automation, SaaS applications, to content pipelines and AI agents.

  • No server management required
  • API-key authentication for secure access
  • Flexible for various developer workflows

Merging videos programmatically and adapting formats is simpler than ever with FFMPEGAPI.net. By utilizing the '/api/convert_to_vertical' endpoint, developers can enhance their workflows and deliver high-quality content tailored for mobile audiences. Whether it's for social media, applications, or innovative projects, FFMPEGAPI.net is the ideal solution for efficient video processing.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free