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Effortless Video Merging with FFMPEGAPI.net: Your Ultimate FFmpeg REST API

June 2026 FFMPEG API Team

Merging videos has never been easier with FFMPEGAPI.net, a hosted FFmpeg REST API designed for developers and automation workflows. With zero server setup required, you can focus on building your application while we handle the heavy lifting of video processing.

Why Use FFMPEGAPI.net for Video Merging?

FFMPEGAPI.net offers a robust solution for merging videos into a single MP4 file. Its powerful features and ease of use make it ideal for developers building SaaS applications, content pipelines, or AI agents.

By using our API, you eliminate the hassle of managing FFmpeg infrastructure and can authenticate with a simple API key, streamlining your development process.

  • No server setup or management required
  • API-key authentication for secure access
  • Ideal for automation and content creation workflows
  • Supports optional audio replacement, subtitle burn-in, and watermarking

How to Merge Videos Using the Video Merge API Endpoint

The Video Merge endpoint at FFMPEGAPI.net allows you to concatenate multiple video files with ease. Simply send a POST request to the /api/merge_videos endpoint with the required parameters, and your videos will be merged seamlessly.

The API supports various optional parameters that enhance your video merging capabilities, including audio replacement and watermark overlay.

  • Endpoint: POST /api/merge_videos
  • Content-Type: application/json
  • Supports merging multiple video URLs
  • Optional parameters for audio, dimensions, subtitles, and watermarks
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'
}

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

Parameters for the Video Merge API

The following parameters can be used when making a request to the Video Merge endpoint:

The 'video_urls' parameter is mandatory, while others are optional but can significantly alter the output video based on your requirements.

  • video_urls (required): Array of video URLs to merge.
  • audio_url (optional): Replacement audio URL.
  • dimensions (optional): Output dimensions (e.g., 1920x1080).
  • subtitle_url (optional): ASS/SSA subtitle URL for burn-in.
  • watermark_url (optional): URL for watermark image.
  • async (optional): Flag to process in the background.

Using FFMPEGAPI.net for merging videos provides developers with a reliable and efficient tool to enhance their applications. With easy-to-use endpoints, flexible options for customization, and no server management, FFMPEGAPI.net stands out as the best choice for your video processing needs.

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