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The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

Merging videos programmatically is a crucial task for developers working on applications, automation, or content pipelines. FFMPEGAPI.net offers a robust and easy-to-use hosted REST API that simplifies the video merging process without the need for server setup or FFmpeg infrastructure management.

Why Use FFMPEGAPI.net for Video Merging?

FFMPEGAPI.net provides a hosted solution for video and audio processing, making it an ideal choice for developers. With API-key authentication, you can easily integrate video merging capabilities into your applications without worrying about server management.

  • No server setup required.
  • Supports multiple input formats.
  • Optional audio replacement and subtitle burn-in.
  • Efficient processing with quick response times.

How to Use the Video Merge Endpoint

The Video Merge API endpoint allows you to concatenate multiple videos into a single MP4 file, with several customization options available. The endpoint path is `/api/merge_videos`, and it accepts a variety of parameters to tailor the output to your needs.

  • Concatenate videos from URLs.
  • Replace audio or add subtitles.
  • Adjust output dimensions.
  • Include watermarks.
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 for the Video Merge API

To successfully utilize the Video Merge API, you need to supply certain parameters. Here’s a brief overview of the required and optional parameters:

  • video_urls (required): An array of video URLs to merge.
  • audio_url (optional): URL for replacement audio.
  • dimensions (optional): Specify output resolution, e.g., 1920x1080.
  • subtitle_url (optional): URL for burning subtitles into the video.
  • watermark_url (optional): URL for watermark image.
  • async (optional): Process the merge in the background.

Using FFMPEGAPI.net's Video Merge API, developers can easily and efficiently merge videos programmatically without the hassle of server setups. Its user-friendly endpoints and comprehensive features make it the best choice for any developer looking to integrate video processing capabilities into their applications.

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