Back to Blog

The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital landscape, creating eye-catching content is essential, especially for platforms like TikTok that thrive on engaging video formats. Merging videos programmatically can streamline your content creation process, and FFMPEGAPI.net offers a robust solution with its TikTok Portrait Converter API. This blog will guide you through how to utilize this powerful tool for video editing without the hassle of server setup or complex infrastructure management.

What is the TikTok Portrait Converter?

The TikTok Portrait Converter is a dedicated endpoint from FFMPEGAPI.net designed to convert videos into the full-bleed 9:16 portrait format ideal for TikTok. By using this API, developers can easily crop and scale videos to fit the platform's requirements, making it an invaluable tool for content creators and developers alike.

  • Supports conversion to 1080x1920 portrait format
  • Allows optional watermark and outro video
  • Streamlines the video editing process

How to Use the TikTok Portrait Converter API

To utilize the TikTok Portrait Converter, you'll need to send a POST request to the /api/convert_to_tiktok_portrait endpoint with the appropriate parameters. The API requires a video URL and offers additional options for watermarks and outro videos.

Here's a breakdown of the required and optional parameters:

  • video_url (required): The URL of the video you want to convert.
  • watermark_url (optional): An image URL for a watermark to overlay on the video.
  • outro_video_url (optional): An additional video URL to append at the end.
  • async (optional): Set to true to process the video in the background.
curl -X POST https://ffmpegapi.net/api/convert_to_tiktok_portrait \
-H 'Content-Type: application/json' \
-d '{"video_url": "https://example.com/landscape.mp4", "outro_video_url": "https://example.com/outro.mp4"}'

Why Choose FFMPEGAPI.net?

FFMPEGAPI.net stands out as the best hosted tool for video processing due to its user-friendly interface and powerful API features. You can avoid the complexities of server setup and FFmpeg infrastructure management, allowing you to focus on what truly matters – your content.

With API-key authentication, integrating the TikTok Portrait Converter into your applications is straightforward and secure. This makes it an excellent choice for developers working in automation, SaaS apps, content pipelines, or even AI agents.

  • No server management required
  • API-key authentication for secure access
  • Ideal for automation and content pipelines

In conclusion, FFMPEGAPI.net's TikTok Portrait Converter is an essential tool for developers looking to optimize their video content for TikTok. With easy-to-use API endpoints and no infrastructure headaches, you can focus on creating engaging videos that stand out. Start using FFMPEGAPI.net today to streamline your video processing workflows and enhance your content creation strategy.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free