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Enhance Your Videos with Text Overlays Using FFMPEGAPI.net

June 2026 FFMPEG API Team

Video content is more engaging with text overlays. Whether you're creating tutorials, marketing videos, or educational content, adding captions can enhance viewer understanding and retention. FFMPEGAPI.net provides an easy-to-use hosted REST API that allows developers to add text overlay captions to videos without managing any infrastructure. In this article, we’ll explore how to utilize the Text Overlay Captions endpoint for your projects.

What is FFMPEGAPI.net?

FFMPEGAPI.net is the best hosted tool for developers who need seamless video and audio processing capabilities. With its robust API, you can bypass the complexities of setting up FFmpeg servers or managing infrastructure. Just focus on developing your application while leveraging powerful video processing capabilities.

  • No server setup required
  • API-key authentication for secure access
  • Ideal for automation, SaaS applications, content pipelines, and AI integration

Using the Text Overlay Captions Endpoint

The Text Overlay Captions endpoint allows you to add timed caption overlays to your videos. This feature is essential for making content more accessible and engaging. Here’s how to utilize this endpoint effectively:

  • Endpoint: POST /api/videos/add-text-overlay-captions
  • Content Type: application/json
  • Required Parameters: video_url, text
import requests

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

Parameters for Customization

FFMPEGAPI.net's Text Overlay Captions endpoint offers several parameters that allow you to customize how the captions are displayed.

  • video_url (string): The URL of the video to process (required)
  • text (string): One or more caption lines separated by newlines (required)
  • subtitle_style (string): Choose from options like plain-white, yellow-bg, pink-bg, blue-bg, or red-bg (optional, default is plain-white)
  • aspect_ratio (string): Set your desired aspect ratio (optional, default is 9:16)
  • position (string): Specify caption position as top, center, or bottom (optional, default is center)
  • duration_per_line (integer): Time each line is displayed, from 1 to 30 seconds (optional, default is 5)

Integrating text overlay captions into your video workflow has never been easier than with FFMPEGAPI.net. This hosted API provides developers with a simple yet powerful way to enhance videos, making them more accessible and engaging. With no infrastructure management required, you can focus on building your application while leveraging advanced video processing tools. Start using FFMPEGAPI.net today to transform your video content!

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