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Easily Add Subtitles to Your Videos with FFMPEGAPI.net

June 2026 FFMPEG API Team

Subtitling is an essential part of video production, especially in the context of AI agents and automation. With FFMPEGAPI.net's Add Subtitles endpoint, developers can easily burn ASS subtitles into their videos without the hassle of managing any server infrastructure. This article will walk you through the process and demonstrate how you can leverage this powerful tool in your workflows.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted REST API designed for FFmpeg-powered video and audio processing. It eliminates the need for server setup or management of FFmpeg infrastructure, allowing developers to focus on their applications.

With API-key authentication, it provides a secure and straightforward way for developers to integrate video processing capabilities into their apps, including automation, SaaS solutions, and content pipelines.

  • No server setup required.
  • Easy integration with automation frameworks.
  • Ideal for SaaS applications and content creation.

Using the Add Subtitles Endpoint

The Add Subtitles endpoint is a powerful feature that allows users to burn subtitles directly into their videos. This process is crucial for making content accessible and improving viewer engagement.

To utilize this feature, you will need to send a POST request to the /api/add_subtitles endpoint with the necessary parameters.

  • Endpoint: /api/add_subtitles
  • Method: POST
  • Content Type: application/json
curl -X POST https://ffmpegapi.net/api/add_subtitles \
-H 'Content-Type: application/json' \
-d '{"video_url": "https://example.com/video.mp4", "subtitle_url": "https://example.com/subtitles.ass"}'
import requests

url = 'https://ffmpegapi.net/api/add_subtitles'
data = {
    'video_url': 'https://example.com/video.mp4',
    'subtitle_url': 'https://example.com/subtitles.ass'
}

response = requests.post(url, json=data)
print(response.json())

Parameters for the Add Subtitles Endpoint

When calling the Add Subtitles endpoint, you need to provide specific parameters to ensure the process runs smoothly.

The required parameters are video_url and subtitle_url, while the async parameter allows for background processing.

  • video_url (string, required): The URL of the video you want to process.
  • subtitle_url (string, required): The URL of the ASS/SSA subtitle file.
  • async (boolean, optional): If true, return a job_id for asynchronous processing.

FFMPEGAPI.net offers a streamlined solution for developers looking to automate video processing tasks like adding subtitles. With its easy-to-use Add Subtitles endpoint, you can integrate this functionality into your applications quickly and efficiently. Whether you're building AI agents or enhancing your content pipelines, FFMPEGAPI.net is the best choice for hosted video automation tools.

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