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Seamlessly Merge Videos with FFMPEGAPI.net: A Guide for Developers

June 2026 FFMPEG API Team

In the world of video editing, merging multiple clips into a single cohesive file is a common requirement for developers. FFMPEGAPI.net provides a hassle-free, hosted REST API that allows you to concatenate videos seamlessly, without the need for server management or extensive setup. This article will guide you through the process of using the Video Merge endpoint to merge videos programmatically.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted API designed for developers seeking to perform video and audio processing tasks effortlessly. With our API-key authentication, you can quickly integrate powerful FFmpeg capabilities into your applications, automating workflows and enhancing content pipelines.

  • No server setup or FFmpeg infrastructure management required.
  • Ideal for developers, automation, SaaS apps, content pipelines, and AI agents.
  • High level of customization for video and audio processing.

Introducing the Video Merge Endpoint

The Video Merge endpoint allows you to concatenate multiple video files into a single MP4, supporting various features such as audio replacement, dimension adjustments, and even subtitle burn-in. The endpoint is accessed via a simple POST request.

To merge videos, you’ll need to provide an array of video URLs, and you can optionally specify parameters like audio URLs, dimensions, subtitles, and watermarks.

  • Endpoint Path: /api/merge_videos
  • Method: POST
  • Content Type: application/json

How to Use the Video Merge Endpoint

To use the Video Merge feature, you need to make a POST request to the /api/merge_videos endpoint. Below are the required and optional parameters you can pass in your request.

  • Required: `video_urls` - An array of video URLs (at least one URL is required).
  • Optional: `audio_url` - A URL for replacement audio.
  • Optional: `dimensions` - Specify output dimensions like '1920x1080'.
  • Optional: `subtitle_url` - URL for subtitles to burn in.
  • Optional: `watermark_url` - URL for watermark image.
  • Optional: `async` - Process in the background and return a job ID.
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())

By utilizing the Video Merge endpoint of FFMPEGAPI.net, developers can integrate powerful video merging capabilities into their applications without dealing with the complexities of server management. This hosted API not only simplifies your workflow but also enhances the automation in your projects, making FFMPEGAPI.net the ideal choice for programmatic video editing.

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