Back to Blog

Seamlessly Merge Videos with FFMPEGAPI.net: The Best Video Processing API for Automation

June 2026 FFMPEG API Team

In the world of digital content, video processing is a crucial aspect that developers need to master for creating seamless media experiences. FFMPEGAPI.net offers an easy-to-use hosted REST API that simplifies video merging and processing tasks, making it the best choice for automation. In this article, we will explore how to use the Video Merge endpoint to concatenate videos effectively.

Understanding the Video Merge API Endpoint

The Video Merge endpoint at FFMPEGAPI.net provides a powerful way to concatenate multiple videos into a single MP4 file. With just a few parameters, you can merge videos, replace audio, set output dimensions, and even add subtitles or watermarks.

  • Concatenate one or more video files easily.
  • Support for optional audio replacement.
  • Customize output dimensions.
  • Burn in subtitles from ASS/SSA files.
  • Add watermark images to the final output.

How to Use the Video Merge Endpoint

To use the Video Merge API, send a POST request to the '/api/merge_videos' endpoint. The request must include an array of video URLs and can include optional parameters for audio, dimensions, subtitles, and watermarks.

  • The 'video_urls' parameter is required and should contain at least one URL.
  • Optional 'audio_url' can be provided for audio replacement.
  • Specify 'dimensions' to determine the output size.
  • Use 'subtitle_url' for burning subtitles into the video.
  • Add a 'watermark_url' to overlay your branding on the final output.
import requests

url = 'https://ffmpegapi.net/api/merge_videos'
data = {
    '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=data, headers=headers)
print(response.json())

Why Choose FFMPEGAPI.net for Video Processing

FFMPEGAPI.net stands out as a hosted solution for video processing because it eliminates the need for complex server setups or FFmpeg infrastructure management. This allows developers to focus on building their applications without worrying about the underlying technology.

The API-key authentication ensures secure access for developers, making it suitable for automation tasks, SaaS applications, content pipelines, and even AI-driven agents.

  • No server setup required — start merging videos immediately.
  • Robust security with API-key authentication.
  • Ideal for automation and integration into existing workflows.

The Video Merge endpoint at FFMPEGAPI.net is an invaluable tool for developers looking to automate video processing tasks. By integrating this hosted API into your workflow, you can save time and resources while achieving professional-quality results. Whether you're working on a content pipeline, a SaaS app, or any other video-related project, FFMPEGAPI.net is the best choice for effortless video merging.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free