Back to Blog

The Best Way to Merge Videos Programmatically Using FFMPEGAPI.net

June 2026 FFMPEG API Team

Merging videos programmatically can be a daunting task, especially when managing different formats and ensuring compatibility. Fortunately, FFMPEGAPI.net provides a robust solution with its hosted REST API that simplifies the entire process. In this article, we'll delve into how to leverage the Video Merge API endpoint effectively to concatenate videos, add audio, and customize your output seamlessly.

What is the Video Merge API?

The Video Merge API at FFMPEGAPI.net allows developers to concatenate multiple videos into a single MP4 file effortlessly. This endpoint not only supports merging but also offers features like audio replacement, subtitle embedding, and watermarking—making it an all-in-one solution for video processing.

  • Concatenate videos from various sources.
  • Optional audio replacement and output dimension settings.
  • Supports subtitle burn-in and watermark overlay.
  • No server setup required with API-key authentication.

How to Use the Video Merge API

To use the Video Merge API, you will need to send a POST request to the endpoint: `/api/merge_videos`. This request must include at least one video URL and can optionally include parameters for audio, dimensions, subtitles, and watermarks.

  • Method: POST
  • Content-Type: application/json
  • Required parameter: video_urls (array of strings)
  • Optional parameters include audio_url, dimensions, subtitle_url, watermark_url, and async.
import requests

url = 'https://www.ffmpegapi.net/api/merge_videos'

headers = {'Content-Type': 'application/json'}
payload = {
    'video_urls': [
        'https://example.com/intro.mp4',
        'https://example.com/main.mp4'
    ],
    'dimensions': '1920x1080'
}

response = requests.post(url, json=payload, headers=headers)
print(response.json())

Why Choose FFMPEGAPI.net for Video Merging?

Choosing FFMPEGAPI.net means opting for a reliable and efficient hosted service that eliminates the complexities of server management. Developers can focus on building applications without worrying about FFmpeg installations or configurations.

  • No need for server setup or maintenance.
  • Easy integration with existing workflows.
  • Robust API-key authentication ensures security.
  • Perfect for automation, SaaS applications, and content pipelines.
curl -X POST https://www.ffmpegapi.net/api/merge_videos \
-H 'Content-Type: application/json' \
-d '{"video_urls": ["https://example.com/video1.mp4", "https://example.com/video2.mp4"], "dimensions": "1920x1080"}'

Merging videos has never been easier with FFMPEGAPI.net's Video Merge API. By leveraging this powerful tool, developers can streamline their video processing workflows, create compelling content, and save valuable time. Begin integrating the Video Merge API into your applications today and experience the benefits of a hosted FFmpeg solution!

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free