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Enhance Your Social Media Videos with Text Overlay Captions Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital age, engaging video content is essential for capturing audience attention on social media platforms. Adding text overlay captions to videos can enhance the viewing experience, making content more accessible and informative. FFMPEGAPI.net provides a powerful hosted API that simplifies the process of adding captions to your videos. In this article, we will explore how to use the Text Overlay Captions endpoint to create captivating video content effortlessly.

What is the Text Overlay Captions API?

The Text Overlay Captions API at FFMPEGAPI.net allows developers to render supplied text lines as timed caption overlays on videos. This endpoint is particularly useful for social media workflows where captioning is vital for viewer engagement.

  • Easily add captions to your videos with just a few API calls.
  • Customize the appearance and timing of each caption line.
  • No need for complex server setups or FFmpeg management.

How to Use the Text Overlay Captions API

Using the Text Overlay Captions API is straightforward. You can send a POST request to the endpoint '/api/videos/add-text-overlay-captions' with the required parameters, including your video URL and caption text. Here's a detailed breakdown of the parameters you can use:

  • video_url: The URL of your video (required).
  • text: One or more lines of caption text (required).
  • subtitle_style: Choose from various styles such as plain-white, yellow-bg, pink-bg, etc. (optional).
  • aspect_ratio: Specify the desired aspect ratio (optional).
  • position: Set the caption position (top, center, or bottom) (optional).
  • duration_per_line: Define how long each caption appears (1 to 30 seconds) (optional).
import requests

url = 'https://www.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)
print(response.json())
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 Your Video Processing Needs?

FFMPEGAPI.net stands out as the best hosted API for video processing, especially for social media workflows. Here are a few reasons why developers should consider using FFMPEGAPI.net:

  • No server setup or FFmpeg infrastructure management required, allowing you to focus on development.
  • API-key authentication ensures that your workflows remain secure.
  • Ideal for automation, SaaS applications, content pipelines, and AI agents.

Enhancing your social media videos with text overlay captions is effortless with FFMPEGAPI.net's Text Overlay Captions API. By leveraging this powerful tool, developers can create engaging and accessible content that resonates with audiences. Start using FFMPEGAPI.net today and elevate your video processing capabilities without the hassle of managing infrastructure.

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