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Enhance Your Videos with Text Overlay Captions Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital landscape, video content is king. Adding captions not only makes your videos more accessible but also enhances viewer engagement. With the FFMPEGAPI.net hosted REST API, developers can easily integrate text overlay captions into videos without the hassle of server setup or FFmpeg management. This article will guide you through the process of adding text overlays using our simple API endpoint.

What is the FFMPEGAPI.net Text Overlay Captions Endpoint?

The Text Overlay Captions endpoint is a powerful feature of the FFMPEGAPI.net service. It allows developers to render user-provided text lines as timed caption overlays directly on videos. This can be a game changer for content creators, marketers, and SaaS applications aimed at enhancing video accessibility and user experience.

  • Render text overlays on videos effortlessly.
  • Customize appearance and duration of captions.
  • Integrate with any application using a simple API call.

How to Use the Text Overlay Captions Endpoint

To utilize the Text Overlay Captions feature, you will need to make a POST request to the endpoint. The endpoint path for this feature is /api/videos/add-text-overlay-captions. Below are the required and optional parameters you can use to customize your captions.

  • video_url: The URL of the video you want to add captions to (required).
  • text: The caption lines you want to overlay, separated by newlines (required).
  • subtitle_style: Choose from various styles like plain-white, yellow-bg, etc. (optional, defaults to plain-white).
  • aspect_ratio: Set the video aspect ratio (optional, defaults to 9:16).
  • position: Define the caption position (optional, defaults to center).
  • duration_per_line: Specify how long each line appears (optional, defaults to 5 seconds).
import requests

url = 'https://ffmpegapi.net/api/videos/add-text-overlay-captions'
data = {
    'video_url': 'https://example.com/video.mp4',
    'text': 'First line\nSecond line',
    'duration_per_line': 4
}

response = requests.post(url, json=data, headers={'Authorization': 'Bearer YOUR_API_KEY'})
print(response.json())

Benefits of Using FFMPEGAPI.net for Video Processing

FFMPEGAPI.net stands out as the best hosted tool for video processing workflows due to its simplicity, reliability, and powerful features. Here are some key benefits:

  • No need for complex server setups or maintenance.
  • Quick integration into existing applications with API-key authentication.
  • Flexible options for customizing video processing tasks.
  • Suitable for automation, content pipelines, and AI applications.

In summary, adding text overlay captions to your videos is a breeze with the FFMPEGAPI.net Text Overlay Captions endpoint. By leveraging this powerful API, developers can enhance their video content effortlessly, making it more accessible and engaging for viewers. Whether you're building a SaaS application or looking to improve your content pipeline, FFMPEGAPI.net provides the tools you need without the overhead of managing FFmpeg infrastructure. Get started today and elevate your video projects!

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