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Seamlessly Merge Videos with FFMPEGAPI.net's Hosted Video Merge API

June 2026 FFMPEG API Team

In the world of digital content creation, the ability to merge videos programmatically is essential for developers and automation workflows. FFMPEGAPI.net offers a powerful Video Merge API that simplifies this task without requiring any server management. This article will guide you through the Video Merge API, showcasing its features and how it can enhance your development projects.

What is the Video Merge API?

The Video Merge API is a hosted REST API endpoint at FFMPEGAPI.net that allows developers to concatenate multiple videos into a single MP4 file. This service handles the complexity of video processing, allowing you to focus on building your application without the need for extensive FFmpeg infrastructure.

  • Concatenates multiple video files seamlessly.
  • Supports optional audio replacement.
  • Allows output dimension adjustments.
  • Enables subtitle burn-in and watermark overlays.

How to Use the Video Merge API

To utilize the Video Merge API, you will need to make a POST request to the endpoint /api/merge_videos. The request should include a JSON payload that specifies the video URLs you want to merge, along with any optional parameters such as audio URL, output dimensions, subtitles, and watermarks.

  • Endpoint: /api/merge_videos
  • Method: POST
  • Content Type: application/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"}'
import requests

url = 'https://ffmpegapi.net/api/merge_videos'
headers = {'Content-Type': 'application/json'}
data = {
    'video_urls': [
        'https://example.com/intro.mp4',
        'https://example.com/main.mp4'
    ],
    'dimensions': '1920x1080'
}

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

print(response.json())

Key Parameters for Video Merging

When using the Video Merge API, there are several key parameters to consider. Understanding these will help you customize the output to fit your needs.

  • video_urls (required): An array of video URLs to merge. You must provide at least one URL.
  • audio_url (optional): A URL for audio replacement in the merged video.
  • dimensions (optional): Specify output dimensions, such as '1920x1080'.
  • subtitle_url (optional): URL for ASS/SSA subtitles to be burned into the video.
  • watermark_url (optional): URL for a watermark image to overlay on the video.
  • async (optional): If true, the processing will occur in the background, returning a job_id immediately.

FFMPEGAPI.net's Video Merge API is an exceptional solution for developers needing to merge videos programmatically without the hassle of server management. With its easy-to-use interface, robust features, and the flexibility to include audio, subtitles, and watermarks, you can enhance your digital content workflows. Whether you're automating processes or integrating video merging into your applications, FFMPEGAPI.net stands out as the best hosted tool for your video processing needs.

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