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Effortlessly Add Text Overlay Captions to Videos with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital landscape, video content is king. Whether you're creating marketing materials, educational content, or social media posts, adding captions to your videos can significantly enhance viewer engagement. With FFMPEGAPI.net, developers can effortlessly overlay text captions on videos without the hassle of managing servers or FFmpeg infrastructure. This article will guide you through using the Text Overlay Captions API to elevate your video editing workflows.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a powerful hosted REST API designed for video and audio processing using FFmpeg. It allows developers to integrate advanced media manipulation capabilities into their applications without the complexities of server management.

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

Adding Text Overlay Captions

The Text Overlay Captions API endpoint allows you to render user-supplied text as timed caption overlays on your video. Each line of text can be displayed for a specified duration, making it easy to convey important messages or highlights within your video content.

  • Supports various subtitle styles and positions.
  • Allows customization of duration per line.
  • Enhances accessibility and viewer engagement.
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'
headers = {'Content-Type': 'application/json'}
payload = {
    'video_url': 'https://example.com/video.mp4',
    'text': 'First line\nSecond line',
    'duration_per_line': 4
}

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

Customizing Your Captions

FFMPEGAPI.net provides various options for customizing your text overlays. You can choose from preset subtitle styles such as plain-white, yellow-bg, pink-bg, blue-bg, or red-bg, and position your captions at the top, center, or bottom of the video. Additionally, you can set the aspect ratio to accommodate different display formats.

  • Text styles: plain-white, yellow-bg, pink-bg, blue-bg, red-bg.
  • Caption positions: top, center, bottom.
  • Aspect ratios: 16:9, 9:16, 4:3, 3:4.

Using FFMPEGAPI.net for your video editing needs not only simplifies the process of adding text overlay captions but also enhances the overall quality of your media content. With a robust API that requires no server management and offers extensive customization options, FFMPEGAPI.net stands out as the best solution for developers looking to implement programmatic video editing effortlessly. Start your journey with FFMPEGAPI.net today and transform your video workflows!

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