Back to Blog

Automate Video Editing with FFMPEGAPI.net: Merging Videos Made Easy

June 2026 FFMPEG API Team

In today's digital age, video content is more important than ever. Whether you're building a SaaS application, automating content pipelines, or enhancing your AI agents, knowing how to seamlessly merge videos can be a game-changer. FFMPEGAPI.net offers a robust hosted REST API that allows developers to automate video editing tasks easily, particularly through its 'Video Merge' endpoint. In this article, we'll explore how to use this endpoint to merge videos effectively.

Understanding the Video Merge Endpoint

The 'Video Merge' endpoint is designed to concatenate multiple video files into a single MP4 file. This functionality is particularly useful for creating compiled videos or combining segments of content for various applications. This API endpoint can normalize video formats, replace audio, apply subtitles, and even overlay watermarks as needed.

  • Concatenate multiple videos into one MP4 file.
  • Supports optional audio replacement and output dimension settings.
  • Allows subtitle burn-in for added accessibility.
  • Can include watermark overlays to brand your content.

Making a Request to the Video Merge Endpoint

To merge videos using the FFMPEGAPI.net, you'll make a POST request to the '/api/merge_videos' endpoint. This request requires specific parameters, such as the video URLs you want to merge, any audio URL for replacement, and optional dimensions for the output video.

Here’s a breakdown of the parameters you need to include in your request:

  • video_urls (required): An array of video URLs to merge.
  • audio_url (optional): A URL for replacing the original audio.
  • dimensions (optional): Specify output video dimensions (e.g., '1920x1080').
  • subtitle_url (optional): A URL for ASS/SSA subtitles to be burned in.
  • watermark_url (optional): A URL for a watermark image.
  • async (optional): A boolean to process the job in the background.
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, headers=headers, json=data)
print(response.json())

FFMPEGAPI.net simplifies video processing by providing a powerful hosted REST API for developers. The 'Video Merge' endpoint allows you to seamlessly combine multiple videos, ensuring a streamlined workflow without the need for extensive server management. By integrating this API into your projects, you can automate video editing tasks, enhance user engagement, and ultimately save time and resources. Explore FFMPEGAPI.net today and elevate your video content creation efforts!

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free