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Automate Video Editing with FFMPEGAPI.net: Adding Text Overlay Captions

June 2026 FFMPEG API Team

Video editing can be a complex and time-consuming process, especially when it comes to adding captions and overlays. FFMPEGAPI.net simplifies this workflow with its hosted REST API, allowing developers to quickly add text overlay captions to their videos without the need for extensive server setup or management. In this article, we'll explore how to automate video editing by utilizing the Text Overlay Captions endpoint.

What is the Text Overlay Captions Endpoint?

The Text Overlay Captions endpoint at FFMPEGAPI.net allows developers to render user-supplied text lines as caption overlays on videos. This feature is perfect for enhancing video content with captions, making it more accessible and engaging for viewers.

  • POST Method: /api/videos/add-text-overlay-captions
  • Render timed caption overlays based on user input
  • Supports various subtitle styles and positions

API Parameters Explained

When using the Text Overlay Captions API, several parameters need to be supplied to customize the overlay according to your needs. Here's a breakdown of the required and optional parameters:

  • video_url (required): URL of the video to be processed.
  • text (required): Caption lines separated by newlines.
  • subtitle_style (optional): Choose from styles like plain-white or yellow-bg.
  • aspect_ratio (optional): Specify video aspect ratio: 16:9, 9:16, etc.
  • position (optional): Set text position as top, center, or bottom.
  • duration_per_line (optional): Define how long each caption is displayed.

How to Use the API: A Practical Example

Utilizing the Text Overlay Captions endpoint is straightforward. Below is an example of how to use cURL to send a request to the API:

curl -X POST https://www.ffmpegapi.net/api/videos/add-text-overlay-captions \
-H "Content-Type: application/json" \
-d '{"video_url": "https://example.com/video.mp4", "text": "First line\nSecond line", "duration_per_line": 4}'

Why Choose FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net stands out as the best choice for developers looking to automate video editing tasks due to its ease of use and powerful features. With no server setup required and API-key authentication, integrating video processing into your applications has never been easier. Whether you're building content pipelines, automation scripts, or SaaS applications, our hosted API empowers you to focus on your projects without worrying about infrastructure management.

  • No server setup required.
  • Quick and easy API integration.
  • Supports a variety of video editing features.
  • Ideal for automation and SaaS applications.

In conclusion, FFMPEGAPI.net provides a robust and user-friendly solution for automating video editing tasks such as adding text overlay captions. By leveraging our hosted API, developers can streamline their workflows and enhance video content without the complexities of traditional video editing. Start your journey with FFMPEGAPI.net today and unlock the potential of video processing in your applications!

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