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Enhance Your Videos with AI Captions Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital landscape, enhancing video content with captions is essential for accessibility and engagement. FFMPEGAPI.net offers a powerful hosted REST API that allows developers to seamlessly add TikTok-style AI captions to videos. With no server setup required, this is the best tool for developers looking to integrate video processing into their applications.

What is the AI Captions Endpoint?

The AI Captions endpoint at FFMPEGAPI.net provides a simple way to transcribe video audio and generate styled captions. This feature is particularly useful for content creators who want to enhance their videos for platforms like TikTok.

  • Transcribes audio and generates captions with word timestamps.
  • Offers multiple subtitle styles to fit your video aesthetic.
  • Returns caption artifact URLs for further use.

How to Use the AI Captions Endpoint

Using the AI Captions feature is straightforward. Simply make a POST request to the endpoint with the required parameters. Below is an example of how to use cURL to send a request.

curl -X POST https://www.ffmpegapi.net/api/videos/add-tiktok-captions \
-H 'Content-Type: application/json' \
-d '{"video_url":"https://example.com/video.mp4","subtitle_style":"yellow-bg","position":"bottom"}'

Parameters for Customizing Your Captions

When making a request to the AI Captions endpoint, you can customize various parameters to suit your needs. Here are the available options:

  • video_url (required): The URL of the video you want to process.
  • subtitle_style (optional): Choose from styles like 'plain-white', 'yellow-bg', etc.
  • language (optional): Specify the language code or use 'auto' for automatic detection.
  • aspect_ratio (optional): Set the aspect ratio such as '16:9', '9:16', etc.
  • max_chars_per_line (optional): Limit caption length from 5 to 80 characters.
  • max_lines (optional): Specify the maximum number of lines (1-4).
  • position (optional): Choose where the captions appear (top, center, or bottom).

FFMPEGAPI.net is the best hosted tool for developers who want to add AI captions to their video content easily and efficiently. With a simple API key authentication, extensive customization options, and no need for server management, it streamlines the integration of video processing in your applications. Start enhancing your video content today with FFMPEGAPI.net!

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