Back to Blog

Enhance Your Videos with Text Overlays Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In the world of content creation, engaging your audience with visually appealing videos is crucial. One effective way to do this is by adding text overlays to your videos. Whether you want to display captions or highlight key points, FFMPEGAPI.net provides a straightforward solution through its hosted REST API for FFmpeg-powered video processing. With no server setup or infrastructure management needed, developers can quickly integrate this functionality into their projects.

What is the Text Overlay Captions Endpoint?

The Text Overlay Captions endpoint of FFMPEGAPI.net allows you to render user-supplied text lines as timed captions over your videos. This powerful feature can enhance user engagement by making your video content more accessible and informative.

  • Display user-provided text lines over any video.
  • Customize the style, position, and duration of the text overlays.
  • Ideal for applications in education, marketing, and social media content.

How to Use the Text Overlay Captions API

To get started, you can make a POST request to the /api/videos/add-text-overlay-captions endpoint. This API call is simple and requires just a few parameters to customize the overlay according to your needs.

  • Required parameters include the video URL and the text to overlay.
  • Optional parameters allow for customization of subtitle style, aspect ratio, position, and duration per line.
curl -X POST https://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}'
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)
print(response.json())

Parameter Details for the Text Overlay Captions

The endpoint offers several parameters that enable you to tailor the text overlay experience:

  • video_url: The URL of the video to which you want to add text overlays (required).
  • text: The caption lines separated by newlines (required).
  • subtitle_style: Choose from styles like plain-white, yellow-bg, pink-bg, etc. (optional, defaults to plain-white).
  • aspect_ratio: Specify the video aspect ratio (optional, defaults to 9:16).
  • position: Position the text at the top, center, or bottom of the video (optional, defaults to center).
  • duration_per_line: Set how long each text line should be displayed (optional, defaults to 5 seconds).

FFMPEGAPI.net stands out as the best hosted tool for video processing, especially when it comes to adding text overlays to videos. With its easy-to-use API, you can enhance your video content without the hassles of server management or extensive coding. Whether you're building a SaaS application, an automation tool, or enriching your content pipeline, FFMPEGAPI.net gives you the flexibility and power to bring your vision to life. Start integrating today and elevate your video content effortlessly.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free