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The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

In the age of short-form video content, platforms like TikTok require creators to optimize their videos for mobile viewing. Merging videos programmatically is a key aspect of this optimization process. FFMPEGAPI.net offers a powerful and easy-to-use hosted REST API that allows developers to convert videos into the perfect TikTok portrait format without the hassle of server setup or infrastructure management.

Why Use FFMPEGAPI.net for Video Merging?

FFMPEGAPI.net stands out as the premier choice for developers looking to integrate video processing capabilities into their applications. Our hosted solution eliminates the need for complex installation or maintenance of FFmpeg servers.

With API-key authentication, you can securely manage your video processing workflows while benefiting from our robust and scalable infrastructure.

  • No server setup or management required.
  • API-key authentication ensures secure access.
  • Ideal for developers, automation, SaaS applications, and content pipelines.

Using the TikTok Portrait Converter API Endpoint

The TikTok Portrait Converter is a powerful API endpoint that allows you to convert videos into a full-bleed 9:16 format, perfect for sharing on TikTok. This endpoint crops and scales your source video into a 1080x1920 portrait format, with options to add a watermark and an outro video.

The endpoint is simple to use, requiring only a few parameters to get started.

  • Convert videos to 1080x1920 portrait format.
  • Optional parameters for watermark and outro video.
  • Asynchronous processing for large videos.
curl -X POST https://ffmpegapi.net/api/convert_to_tiktok_portrait \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer YOUR_API_KEY' \
-d '{"video_url": "https://example.com/landscape.mp4", "outro_video_url": "https://example.com/outro.mp4"}'
import requests

url = 'https://ffmpegapi.net/api/convert_to_tiktok_portrait'

payload = {
    'video_url': 'https://example.com/landscape.mp4',
    'outro_video_url': 'https://example.com/outro.mp4'
}
headers = {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
}

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

With FFMPEGAPI.net, merging videos programmatically has never been easier. Our TikTok Portrait Converter API allows developers to transform landscape videos into mobile-friendly formats effortlessly. By utilizing our hosted REST API, you can streamline your video processing workflows without the overhead of managing FFmpeg infrastructure. Start your free trial today at FFMPEGAPI.net and elevate your video content game.

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