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The Best Way to Merge Videos Programmatically Using FFMPEGAPI.net

June 2026 FFMPEG API Team

Merging videos programmatically can be a challenging task, especially if you need to manage infrastructure and FFmpeg installations. With FFMPEGAPI.net, you can streamline this process by using our hosted REST API, which allows you to concatenate videos seamlessly without the hassle of server setup.

Why Use FFMPEGAPI.net for Video Merging?

FFMPEGAPI.net is designed to provide developers with an easy-to-use, hosted solution for video and audio processing. By leveraging our API, you can focus on your application logic rather than dealing with the complexities of video processing infrastructure.

  • No server setup or FFmpeg management required.
  • API-key authentication ensures secure and straightforward access.
  • Ideal for automation, SaaS applications, content pipelines, and AI integrations.

Using the Video Merge Endpoint

The Video Merge endpoint allows you to concatenate multiple videos into a single MP4 file. It supports various options such as audio replacement, custom output dimensions, subtitle burning, and watermark overlay.

To use the endpoint, you simply send a POST request with the required parameters, including the URLs of the videos you want to merge.

  • Endpoint path: `/api/merge_videos`
  • Method: POST
  • Content Type: application/json
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())
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"}'

Optional Parameters for Enhanced Functionality

FFMPEGAPI.net's Video Merge endpoint not only merges videos but also provides optional parameters for further customization.

You can specify an optional audio URL to replace the existing audio track, output dimensions for the final video, and even burn subtitles directly into the video.

  • Replace audio using `audio_url`.
  • Set output dimensions with `dimensions`.
  • Burn subtitles with `subtitle_url`.
  • Overlay watermarks using `watermark_url`.

Merging videos programmatically has never been easier with FFMPEGAPI.net. By utilizing our hosted REST API, you can save time, eliminate the need for complex server setups, and focus on building impactful applications. Whether you are developing automation tools, SaaS applications, or content pipelines, FFMPEGAPI.net is the ideal choice for all your video processing needs.

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