Back to Blog

The Best Way to Merge Videos Programmatically: Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital landscape, merging videos programmatically is a necessity for developers looking to streamline content creation. FFMPEGAPI.net offers a robust, hosted REST API that simplifies video processing tasks, including converting videos to TikTok-style portrait format. This article will explore how to use the TikTok Portrait Converter endpoint to easily merge videos and enhance your development workflow.

Why Choose FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net is a leading choice for developers needing efficient video and audio processing capabilities. With no server setup or FFmpeg infrastructure management required, it allows for quick integration into any application.

The API-key authentication ensures a secure and seamless experience while enabling automation, SaaS applications, and more.

  • No need for extensive server management.
  • Scalable and suitable for various applications.
  • Dedicated support for developers.

Using the TikTok Portrait Converter Endpoint

The TikTok Portrait Converter is a powerful feature that lets you convert landscape videos into the popular 9:16 portrait format, perfect for TikTok sharing. This API endpoint allows you to crop and scale your source video to 1080x1920, ensuring it meets platform specifications.

Additionally, you can add optional features like a watermark and an outro video to enhance your final product.

  • Convert videos to a full-bleed TikTok-style format.
  • Add optional watermarks for branding.
  • Append outro videos for a polished finish.
import requests

def convert_video_to_tiktok(video_url, outro_video_url=None, watermark_url=None):
    url = 'https://www.ffmpegapi.net/api/convert_to_tiktok_portrait'
    headers = {'Content-Type': 'application/json', 'Authorization': 'Bearer YOUR_API_KEY'}
    data = {
        'video_url': video_url,
        'outro_video_url': outro_video_url,
        'watermark_url': watermark_url
    }

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

# Example usage
convert_video_to_tiktok('https://example.com/landscape.mp4', 'https://example.com/outro.mp4')

Endpoint Details

The TikTok Portrait Converter can be accessed via a simple POST request. Here are the details you'll need to get started:

  • Endpoint: /api/convert_to_tiktok_portrait
  • Request Method: POST
  • Content Type: application/json
curl -X POST https://www.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" }'

Merging videos programmatically has never been easier, thanks to FFMPEGAPI.net. The TikTok Portrait Converter provides a streamlined process for transforming your videos into an engaging format suitable for social media. With no infrastructure setup required, developers can focus on building innovative solutions. Try FFMPEGAPI.net today and elevate your video processing workflows!

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free