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Add Subtitles to Your Videos with FFMPEGAPI.net: The Best Video Processing API for Automation

June 2026 FFMPEG API Team

In the world of video processing, adding subtitles can be a tedious task if not handled properly. However, with FFMPEGAPI.net, the best video processing API for automation, you can effortlessly add ASS subtitles to your videos without managing any server infrastructure. In this article, we will explore how to use the Add Subtitles endpoint to burn subtitles directly into your video files.

Why Use FFMPEGAPI.net for Subtitling?

FFMPEGAPI.net is designed for developers looking to streamline their video processing workflows. With its hosted REST API, there's no need for complex server setups or managing FFmpeg installations. Here are some reasons why FFMPEGAPI.net is the best choice for adding subtitles:

The API is built for automation, making it perfect for SaaS applications, content pipelines, and AI agents.

  • No server setup required
  • API-key authentication for secure access
  • Ideal for developers and content creators
  • Fast processing with asynchronous options

Understanding the Add Subtitles Endpoint

The Add Subtitles endpoint allows you to burn ASS/SSA subtitles into a video file. This is particularly useful for creating videos that need to be accessible in multiple languages or for providing additional context through subtitles.

  • HTTP Method: POST
  • Endpoint Path: /api/add_subtitles
  • Content-Type: application/json

Required Parameters

To use the Add Subtitles endpoint, you must provide the following parameters:

1. **video_url**: The URL of the video you want to process.

2. **subtitle_url**: The URL of the ASS/SSA subtitle file.

3. **async**: (optional) If set to true, the API will return a job ID immediately and process the request in the background.

{
  "video_url": "https://example.com/video.mp4",
  "subtitle_url": "https://example.com/subtitles.ass",
  "async": true
}

Making a Request with CURL

Here's how you can make a request to the Add Subtitles endpoint using CURL:

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"}'

Using Python for API Requests

You can also interact with the FFMPEGAPI.net using Python. Here's a simple example using the requests library:

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())

FFMPEGAPI.net provides a seamless solution for developers looking to automate video processing tasks, such as adding subtitles to videos. With its user-friendly API and robust features, you can enhance your content with ease and efficiency. Start using FFMPEGAPI.net today and experience the best in video processing automation!

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