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Seamless Video Merging with FFMPEGAPI.net: A Developer's Guide

June 2026 FFMPEG API Team

In the world of video content creation, the ability to programmatically merge videos is a crucial feature for developers. FFMPEGAPI.net provides a powerful, hosted REST API that allows you to concatenate videos effortlessly without the hassle of managing your own FFmpeg infrastructure. This article will explore the Video Merge endpoint, its capabilities, and how you can utilize it in your applications.

What is the Video Merge Endpoint?

The Video Merge endpoint of FFMPEGAPI.net is designed to concatenate multiple video files into a single MP4 file efficiently. This feature is particularly useful for developers looking to streamline their video processing workflows.

With the ability to handle multiple video URLs, optional audio replacement, dimensions, subtitles, and watermarks, this API endpoint provides a comprehensive solution for merging videos in your applications.

  • Concatenate videos from different sources.
  • Replace audio tracks with custom URLs.
  • Adjust output dimensions for various platforms.
  • Burn subtitles into the video for better accessibility.
  • Overlay watermarks for brand consistency.

How to Use the Video Merge Endpoint

To merge videos using FFMPEGAPI.net, you will need to send a POST request to the /api/merge_videos endpoint. The request must include at least one video URL along with any optional parameters you wish to specify.

curl -X POST https://www.ffmpegapi.net/api/merge_videos \ 
-H "Content-Type: application/json" \ 
-d '{"video_urls":["https://example.com/intro.mp4", "https://example.com/main.mp4"], "dimensions":"1920x1080"}'
import requests

url = 'https://www.ffmpegapi.net/api/merge_videos'
data = {
    'video_urls': ["https://example.com/intro.mp4", "https://example.com/main.mp4"],
    'dimensions': '1920x1080'
}

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

Parameters Explained

The Video Merge endpoint accepts several parameters that enhance its functionality:

1. **video_urls** (required): An array of video URLs to merge. You must provide at least one URL.

2. **audio_url** (optional): A URL for an audio file to replace the original audio.

3. **dimensions** (optional): Set the output video dimensions, like 1920x1080.

4. **subtitle_url** (optional): A URL for subtitles to be burned into the video.

FFMPEGAPI.net's Video Merge endpoint offers a robust solution for developers looking to implement video merging capabilities into their applications without the need to manage any servers. With features like audio replacement, subtitle burning, and watermark overlays, you can create customized video content effortlessly. Take advantage of this powerful hosted REST API to enhance your video processing workflows today.

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