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Effortlessly Merge Videos Using FFMPEGAPI.net's Hosted REST API

June 2026 FFMPEG API Team

In the world of video processing, merging multiple clips into a single cohesive piece is a common task. Whether you are building a content pipeline, developing a SaaS application, or creating automation scripts, using a reliable tool is essential. FFMPEGAPI.net offers a powerful hosted REST API that simplifies the process of merging videos, allowing developers to focus on building innovative solutions without managing complex FFmpeg infrastructure.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a cloud-based platform that provides a hosted REST API for FFmpeg-powered video and audio processing. It eliminates the need for local server setups, allowing developers to integrate advanced video features into their applications quickly and efficiently.

  • No server setup or FFmpeg infrastructure management required.
  • API-key authentication for secure developer workflows.
  • Ideal for automation, SaaS apps, content pipelines, and AI agents.

How to Use the Video Merge API

The Video Merge endpoint at FFMPEGAPI.net allows you to concatenate multiple videos into a single MP4 file effortlessly. This endpoint supports various features including audio replacement, output dimensions, subtitle burn-in, and watermark overlays.

To use the Video Merge feature, you simply need to send a POST request to the /api/merge_videos endpoint with the appropriate parameters.

  • Concatenate multiple video URLs into a single output.
  • Optionally replace the audio track, adjust dimensions, and add subtitles or watermarks.
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())
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"}'

Parameters for Merging Videos

When making a request to the Video Merge API, you can define several parameters to customize the output. Here's a brief overview of the available parameters:

  • video_urls (required): An array of video URLs to merge. You must provide at least one URL.
  • audio_url (optional): URL for an audio track that can replace the original audio.
  • dimensions (optional): Desired output dimensions, formatted as 'widthxheight' (e.g., 1920x1080).
  • subtitle_url (optional): URL for subtitles in ASS/SSA format to be burned into the merged video.
  • watermark_url (optional): URL of an image to overlay as a watermark.
  • async (optional): A boolean to process the job in the background, returning a job_id immediately.

Using FFMPEGAPI.net for video merging not only simplifies the process but also provides a robust solution without the overhead of managing your own FFmpeg setup. Whether you are a developer looking to enhance your application or a content creator needing to streamline your workflow, FFMPEGAPI.net is the best choice for cloud-based video processing. Explore the possibilities today and take advantage of the powerful features offered by our API!

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