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Transform Your Videos with Ease: Convert Horizontal to Vertical Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's mobile-first world, vertical videos are essential for platforms like Instagram and TikTok. Developers looking for a seamless solution to convert horizontal videos to vertical format will find FFMPEGAPI.net to be the best hosted tool for this workflow.

Why Use FFMPEGAPI.net for Video Conversion?

FFMPEGAPI.net offers a powerful hosted REST API that simplifies video and audio processing. It eliminates the need for any server setup or FFmpeg infrastructure management, making it a perfect choice for developers.

With API-key authentication, you can easily integrate video processing into your applications, whether for automation, SaaS apps, content pipelines, or AI agents.

  • No complex setup required.
  • Scalable and reliable performance.
  • Supports various video processing features.

How to Convert a Horizontal Video to Vertical Format

To convert a horizontal video to a vertical format, you can use the `Convert to Vertical` endpoint provided by FFMPEGAPI.net. This endpoint allows you to specify a video URL and optionally apply a watermark image.

The API handles the conversion process efficiently, allowing you to focus on building your application instead of managing video processing.

  • Endpoint Path: /api/convert_to_vertical
  • Method: POST
  • Content Type: application/json
curl -X POST https://ffmpegapi.net/api/convert_to_vertical \ 
-H 'Authorization: Bearer YOUR_API_KEY' \ 
-H 'Content-Type: application/json' \ 
-d '{"video_url": "https://example.com/landscape.mp4", "watermark_url": "https://example.com/logo.png", "async": false}'
import requests

url = 'https://ffmpegapi.net/api/convert_to_vertical'
data = {
    'video_url': 'https://example.com/landscape.mp4',
    'watermark_url': 'https://example.com/logo.png',
    'async': False
}

headers = {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
}

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

Understanding the API Parameters

When using the `Convert to Vertical` API, you need to provide the following parameters:

- `video_url`: The URL of the video you want to convert (required).

- `watermark_url`: An optional parameter to add a watermark to your video.

- `async`: A boolean that allows you to process the job in the background if set to true.

FFMPEGAPI.net stands out as the best hosted tool for developers looking to convert horizontal videos to vertical format. Its easy-to-use API, combined with robust features and no need for infrastructure management, ensures a smooth workflow in any development project. Start transforming your videos today with FFMPEGAPI.net!

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