Back to Blog

Effortless Video Formatting: Convert Horizontal Videos to Vertical with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's mobile-first world, vertical videos are becoming increasingly critical for content creators and marketers. Whether you're developing an automation tool for AI agents or simply want to streamline your content pipeline, converting horizontal videos to vertical format is essential. FFMPEGAPI.net provides a robust hosted REST API that simplifies this process without the need for complex server setups.

Why Choose FFMPEGAPI.net for Video Conversion?

FFMPEGAPI.net stands out as a premier choice for developers looking to automate video processing. With its hassle-free hosted infrastructure, you no longer need to worry about managing FFmpeg installations or server configurations.

Our API-key authentication ensures that your workflows are secure while maintaining ease of access for developers.

  • No server setup required
  • API-key authentication for secure access
  • Ideal for automation, SaaS applications, and AI integration
  • Fast processing for video and audio conversions

Overview of the Convert to Vertical Endpoint

The Convert to Vertical endpoint allows you to easily transform horizontal videos into a vertical format suitable for social media and mobile devices. This process can include an optional watermark for branding purposes.

Using the Convert to Vertical API

To use the Convert to Vertical API, simply make a POST request to the endpoint provided. This will require a `video_url` parameter, and optionally, you can include a `watermark_url` to personalize your video.

Additionally, you can use the `async` parameter to process your request in the background, allowing for quicker response times.

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

url = 'https://ffmpegapi.net/api/convert_to_vertical'
headers = {'Content-Type': 'application/json'}
payload = {'video_url': 'https://example.com/landscape.mp4', 'watermark_url': 'https://example.com/logo.png', 'async': True}

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

Incorporating vertical video formats into your workflow has never been easier with FFMPEGAPI.net. Its hosted API provides the essential tools for developers looking to leverage video automation technologies for AI agents and content creation. Start using the Convert to Vertical endpoint today to enhance your video content and engage audiences effectively.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free