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Enhance Your Videos with Text Overlay Captions Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's content-driven world, enhancing videos with captions is essential for accessibility and engagement. The FFMPEGAPI.net hosted REST API simplifies the process of adding text overlay captions to your videos without any server setup or FFmpeg management. With just a few lines of code, you can transform your video content and make it more appealing to your audience.

What is the Text Overlay Captions API?

The Text Overlay Captions endpoint of FFMPEGAPI.net allows developers to render user-supplied text lines as timed caption overlays on videos. This feature is particularly useful for SaaS applications, automation, and content pipelines, allowing you to enhance the viewing experience for your audience.

  • Easy integration with your existing workflows.
  • Supports various caption styles and positions.
  • Customizable duration for each caption line.

How to Use the Text Overlay Captions Endpoint

To use the Text Overlay Captions API, you need to make a POST request to the endpoint at `/api/videos/add-text-overlay-captions`. The request requires a JSON body that includes the video URL and the text you wish to overlay.

Here’s a breakdown of the parameters you can pass in your API request:

  • video_url (required): The URL of the video you want to process.
  • text (required): Caption lines, separated by newlines.
  • subtitle_style (optional): Choose styles like plain-white, yellow-bg, pink-bg, etc. Default is plain-white.
  • aspect_ratio (optional): Aspect ratio settings such as 16:9, 9:16, etc. Default is 9:16.
  • position (optional): Set the position of the text on the video - top, center, or bottom. Default is center.
  • duration_per_line (optional): Duration each text line is displayed, ranging from 1 to 30 seconds. Default is 5 seconds.
import requests

url = 'https://ffmpegapi.net/api/videos/add-text-overlay-captions'
headers = {'Authorization': 'Bearer YOUR_API_KEY', 'Content-Type': 'application/json'}
data = {
    'video_url': 'https://example.com/video.mp4',
    'text': 'First line\nSecond line',
    'duration_per_line': 4
}

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

Why Choose FFMPEGAPI.net for Your Video Processing Needs?

FFMPEGAPI.net stands out as the best choice for developers looking to integrate video processing capabilities into their applications. Here are some compelling reasons to consider using our API:

  • No server setup or infrastructure management required, saving you time and resources.
  • API-key authentication ensures secure and seamless integration.
  • Scalable for automation, SaaS applications, content pipelines, and AI agents.

Incorporating text overlay captions into your videos is a straightforward process with the FFMPEGAPI.net REST API. By using our hosted solution, you can focus on creating great content without worrying about the technical details of video processing. Start enhancing your videos today and enhance audience engagement with FFMPEGAPI.net!

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