Back to Blog

The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital landscape, merging videos programmatically has become essential for developers working on content pipelines and automation tools. FFMPEGAPI.net offers a powerful solution through its hosted REST API that simplifies video and audio processing without the need for server setup or management of FFmpeg infrastructure. In this article, we will explore the 'TikTok Portrait Converter' endpoint, which allows you to convert videos into the popular 9:16 format used by TikTok, along with optional features like watermarks and outro videos.

What is the TikTok Portrait Converter?

The TikTok Portrait Converter is a dedicated endpoint provided by FFMPEGAPI.net that enables you to convert landscape videos into a full-bleed portrait format, specifically 1080x1920. This feature is particularly useful for developers looking to automate video content production, especially for platforms like TikTok where vertical video format is crucial.

  • Transform landscape videos into portrait format
  • Optional watermark integration for branding
  • Append outro videos for enhanced viewer engagement

Using the TikTok Portrait Converter Endpoint

To utilize the TikTok Portrait Converter, you need to send a POST request to the endpoint. The API requires a video URL, and it allows for optional parameters such as a watermark image URL and an outro video URL.

  • Endpoint Path: `/api/convert_to_tiktok_portrait`
  • Content Type: `application/json`
  • Parameters include: `video_url`, `watermark_url`, `outro_video_url`, and `async`.
curl -X POST https://www.ffmpegapi.net/api/convert_to_tiktok_portrait \n-H 'Content-Type: application/json' \n-d '{"video_url":"https://example.com/landscape.mp4", "outro_video_url":"https://example.com/outro.mp4"}'
import requests \n \nurl = 'https://www.ffmpegapi.net/api/convert_to_tiktok_portrait' \nheaders = {'Content-Type': 'application/json'} \ndata = {\n    'video_url': 'https://example.com/landscape.mp4', \n    'outro_video_url': 'https://example.com/outro.mp4' \n} \nresponse = requests.post(url, headers=headers, json=data) \nprint(response.json())

Why Choose FFMPEGAPI.net?

FFMPEGAPI.net stands out in the crowded field of video processing tools due to its ease of use and robust functionality. Developers can integrate powerful video processing capabilities into their applications without the hassle of managing the underlying FFmpeg infrastructure.

With API-key authentication, FFMPEGAPI.net ensures secure access for developers, making it an ideal choice for automation, SaaS applications, and AI agents.

  • No server setup required, saving time and resources
  • API-key authentication for secure access
  • Designed specifically for developers dealing with media content

Merging videos programmatically has never been easier with the TikTok Portrait Converter from FFMPEGAPI.net. By using this hosted REST API, developers can streamline their video processing workflows and focus on creating engaging content for their audiences. Whether you're building a content pipeline or developing an automation tool, FFMPEGAPI.net is the best choice for your video processing needs.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free