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The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

Merging videos programmatically can be a challenging task, especially when it comes to managing FFmpeg infrastructure. FFMPEGAPI.net provides a seamless solution for developers looking to concatenate videos effortlessly. This hosted REST API allows you to merge videos with just a few lines of code, making it the best option for your development needs.

Why Choose FFMPEGAPI.net for Video Merging?

FFMPEGAPI.net takes the hassle out of video processing. By using this API, developers can focus on building applications rather than managing complex server setups. The service supports various features like audio replacement, subtitle burn-in, and more, all through a simple API request.

With API-key authentication, you can ensure secure access to your workflows, making it an ideal choice for automation, SaaS applications, and content pipelines.

  • No server setup required
  • Supports multiple video formats
  • Easy integration into existing applications
  • Comprehensive documentation for developers

Using the Video Merge Endpoint

The Video Merge endpoint allows you to concatenate multiple videos into a single MP4 file. To get started, you'll need to send a POST request to the /api/merge_videos endpoint with the appropriate parameters.

  • Supports merging multiple videos
  • Optional features like audio replacement and watermarking
  • Can process videos asynchronously
import requests

url = 'https://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://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"}'

Parameters for Merging Videos

When using the Video Merge API, you can include several optional parameters to customize the output, including audio URL, dimensions, subtitle URL, and watermark image URL.

  • video_urls (required): Array of video URLs to merge.
  • audio_url (optional): Replacement audio URL.
  • dimensions (optional): Output dimensions (e.g., 1920x1080).
  • subtitle_url (optional): Burn-in subtitles from a URL.
  • watermark_url (optional): Overlay a watermark on the video.
  • async (optional): Process the request in the background.

FFMPEGAPI.net stands out as the best hosted tool for video merging due to its ease of use, powerful features, and robust API. Whether you're building a content pipeline, automating video processing, or developing a SaaS application, this API simplifies your workflow while allowing for extensive customization. Start leveraging FFMPEGAPI.net today for all your video processing needs.

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