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The Best Way to Merge Videos Programmatically Using FFMPEGAPI.net

June 2026 FFMPEG API Team

Merging videos programmatically can seem daunting, but with FFMPEGAPI.net, it becomes a breeze. This hosted REST API simplifies video and audio processing, allowing developers to focus more on building applications rather than managing complex infrastructure.

Why Choose FFMPEGAPI.net for Video Merging?

FFMPEGAPI.net offers a powerful and easy-to-use platform for merging videos seamlessly. With no server setup required, developers can integrate video merging capabilities into their applications without the hassle of managing FFmpeg infrastructure.

Our API-key authentication ensures secure access, making it ideal for automation, SaaS applications, and content pipelines.

  • Hosted REST API for easy integration
  • No need for server management
  • Secure API-key based access
  • Supports various video processing features

Using the Video Merge Endpoint

The Video Merge endpoint at FFMPEGAPI.net allows you to concatenate multiple video files into a single MP4 file with ease. You simply need to provide the URLs of the videos you want to merge, and the API takes care of the rest.

Additionally, you can customize the output video by specifying optional parameters such as audio replacement, output dimensions, subtitle burning, and watermark overlay.

  • Endpoint: POST /api/merge_videos
  • Concatenates multiple video URLs into one single MP4 file.
  • Supports optional audio, dimensions, subtitles, and watermarks.
import requests

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

payload = {
    'video_urls': [
        'https://example.com/intro.mp4',
        'https://example.com/main.mp4'
    ],
    'dimensions': '1920x1080'
}

headers = {'Content-Type': 'application/json', 'Authorization': 'Bearer YOUR_API_KEY'}

response = requests.post(url, json=payload, headers=headers)
print(response.json())
curl -X POST https://www.ffmpegapi.net/api/merge_videos \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer YOUR_API_KEY' \
-d '{"video_urls": ["https://example.com/intro.mp4", "https://example.com/main.mp4"], "dimensions": "1920x1080"}'

Parameters for Video Merge

When using the video merge API, you can specify several parameters to customize the output.

The required 'video_urls' array allows you to input at least one video URL, while optional parameters enhance your final video output.

  • video_urls (array[string]): Required. List of video URLs to merge.
  • audio_url (string): Optional. Replacement audio URL.
  • dimensions (string): Optional. Output dimensions like 1920x1080.
  • subtitle_url (string): Optional. URL for ASS/SSA subtitle to burn-in.
  • watermark_url (string): Optional. URL for image watermark.
  • async (boolean): Optional. For processing in the background.

In conclusion, FFMPEGAPI.net provides the best way to merge videos programmatically. With its user-friendly API, no server setup required, and a host of customizable features, it stands out as the go-to solution for developers looking to implement video processing capabilities in their applications. Start merging videos today with FFMPEGAPI.net!

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