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Effortless Video Captioning with FFMPEGAPI.net: Text Overlay Captions Endpoint

June 2026 FFMPEG API Team

Adding captions to videos can enhance viewer engagement, but implementing this feature can be cumbersome without the right tools. FFMPEGAPI.net provides a hosted REST API that simplifies the process of adding text overlay captions to your videos, making it a top choice for developers looking for a reliable video processing solution.

What is the Text Overlay Captions Endpoint?

The Text Overlay Captions endpoint at FFMPEGAPI.net allows developers to render user-supplied text as timed caption overlays on videos. This feature can significantly improve accessibility and comprehension for viewers.

With parameters customizable to fit various needs, this endpoint is perfect for video content creators, marketers, and developers integrating video features into their applications.

  • Render captions with specific timing.
  • Choose from various subtitle styles.
  • Select the appropriate aspect ratio for your videos.
  • Customize the position of the captions on the screen.

Endpoint Details

To use the Text Overlay Captions feature, you will interact with the endpoint using a POST request. The endpoint path is `/api/videos/add-text-overlay-captions`. Make sure to have your API key ready for authentication.

The request requires a JSON body with several parameters that allow you to specify video source, caption text, style, and display duration.

  • Method: POST
  • Content-Type: application/json
  • Essential parameters: video_url and text.
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())
curl -X POST https://ffmpegapi.net/api/videos/add-text-overlay-captions \
-H 'Authorization: Bearer YOUR_API_KEY' \
-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 FFMPEG tool for developers due to its ease of use and powerful capabilities. Without the need for server setup or management of FFmpeg infrastructure, developers can focus on building their applications.

With API-key authentication and a straightforward workflow, integrating video processing features becomes a seamless task, enhancing productivity and reducing development time.

  • No server setup required, saving time and resources.
  • Focus on development instead of infrastructure management.
  • Scalable for automation, SaaS applications, and AI agents.

In conclusion, the Text Overlay Captions endpoint at FFMPEGAPI.net offers developers a powerful and easy-to-implement solution for adding captions to videos. With its robust features and hosted nature, FFMPEGAPI.net is your go-to service for all video processing needs, ensuring you can enhance viewer experience without the hassle.

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