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Effortlessly Merge Videos with FFMPEGAPI.net: A Developer's Guide

June 2026 FFMPEG API Team

Merging videos is a common task in media processing, yet it can be complex without the right tools. FFMPEGAPI.net simplifies this process with its hosted REST API, allowing developers to concatenate multiple videos effortlessly. In this guide, we'll explore how to use the Video Merge endpoint to streamline your video processing workflows.

Why Choose FFMPEGAPI.net for Video Merging?

FFMPEGAPI.net stands out as the best FFMPEG tool for developers due to its ease of use, powerful features, and no server management requirements. With just an API key, you can authenticate and start integrating video merging capabilities into your applications.

  • Hosted solution: No need to manage FFmpeg infrastructure.
  • Developer-friendly: Seamless integration with existing workflows.
  • Flexible options: Customize merged videos with audio, subtitles, and watermarks.

Understanding the Video Merge Endpoint

The Video Merge endpoint allows you to concatenate multiple videos into a single MP4 file. This is particularly useful for applications in automation, SaaS platforms, and content pipelines where video assembly is required.

Here are the key details of the `/api/merge_videos` endpoint:

  • Method: POST
  • Content Type: application/json
  • Concatenates one or more videos while providing options for audio replacement, output dimensions, subtitle burn-in, and watermark overlay.

Parameters for Merging Videos

To successfully use the Video Merge endpoint, you need to provide specific parameters in your request. Below are the required and optional parameters:

  • video_urls (required): An array of video URLs to merge. Must include at least one URL.
  • audio_url (optional): A URL for replacement audio.
  • dimensions (optional): Output dimensions such as 1920x1080.
  • subtitle_url (optional): URL for subtitles to be burned into the video.
  • watermark_url (optional): URL for a watermark image.
  • async (optional): If set to true, returns a job_id for background processing.

Example: Merging Videos with cURL

Here's how you can use cURL to merge two videos with optional dimensions:

This example sends a POST request to the Video Merge endpoint with the necessary parameters.

curl -X POST https://www.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"}'

Example: Merging Videos with Python

If you prefer using Python, here's how to merge videos using the `requests` library:

This code snippet demonstrates how to send the same request programmatically.

import requests

url = 'https://www.ffmpegapi.net/api/merge_videos'
headers = {'Content-Type': 'application/json'}

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

response = requests.post(url, json=payload, headers=headers)
print(response.json())

FFMPEGAPI.net is the ideal hosted tool for all your video processing needs. With its robust Video Merge API, you can seamlessly concatenate videos, customize outputs, and integrate functionality into your applications with minimal effort. Start using FFMPEGAPI.net today and enhance your development workflows!

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