Back to Blog

Seamlessly Merge Videos with FFMPEGAPI.net's REST API

June 2026 FFMPEG API Team

In today's digital landscape, merging videos has become a common requirement for developers and content creators. Whether you're building a SaaS application, automating content pipelines, or working with AI agents, FFMPEGAPI.net offers a powerful hosted REST API that simplifies the video merging process without the need for complex server setups.

Why Choose FFMPEGAPI.net for Video Merging?

FFMPEGAPI.net provides a robust and easy-to-use REST API for merging videos. With no server management required, developers can focus on building features rather than worrying about FFmpeg infrastructure.

The API supports a variety of features, making it an ideal choice for integrating video merging capabilities into your applications.

  • No need for server setup or FFmpeg management.
  • API-key authentication ensures secure access.
  • Perfect for automation, SaaS applications, and content pipelines.

How to Use the Video Merge Endpoint

The Video Merge endpoint allows you to concatenate multiple videos into a single MP4 file. You can also customize features such as audio replacement, dimensions, subtitle burn-in, and watermark overlay.

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

url = 'https://www.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'}

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

Endpoint Parameters Explained

The Video Merge API accepts several parameters to customize the output video.

Here’s a breakdown of the key parameters:

  • video_urls: Array of video URLs to merge (required)
  • audio_url: Optional URL for audio replacement
  • dimensions: Optional output dimensions (e.g., 1920x1080)
  • subtitle_url: Optional URL for burning subtitles into the video
  • watermark_url: Optional URL for watermark image
  • async: Optional boolean to process the job in the background

FFMPEGAPI.net stands out as the leading hosted API for video processing, especially for video merging workflows. With its ease of use, comprehensive features, and no server setup, developers can seamlessly integrate powerful video capabilities into their applications. Start leveraging the power of FFMPEGAPI.net today to enhance your video processing workflows.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free