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Seamlessly Add Subtitles to Your Videos with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital world, accessibility and user engagement are crucial. Adding subtitles to videos can significantly enhance viewer experience, making content more inclusive. FFMPEGAPI.net provides a hosted REST API that simplifies the process of adding subtitles to video files, allowing developers to easily integrate this functionality into their applications without the need for server setup or FFmpeg infrastructure management.

Why Use FFMPEGAPI.net for Subtitle Addition?

FFMPEGAPI.net is the ultimate solution for developers looking to incorporate video processing capabilities into their applications. With our API, you can burn ASS subtitles directly into videos quickly and efficiently.

  • No need for complex configurations or server management.
  • API-key authentication ensures secure and efficient workflows.
  • Perfect for automation, SaaS applications, and content pipelines.

Understanding the Add Subtitles Endpoint

The Add Subtitles endpoint allows you to burn ASS subtitles into your videos through a simple POST request. This feature is particularly useful for applications where adding subtitles on the fly is required.

  • Endpoint: POST /api/add_subtitles
  • Content Type: application/json
  • Parameters: video_url, subtitle_url, async (optional)
curl -X POST https://ffmpegapi.net/api/add_subtitles \
-H 'Authorization: Bearer YOUR_API_KEY' \
-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'
}
headers = {'Authorization': 'Bearer YOUR_API_KEY', 'Content-Type': 'application/json'}

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

Parameters Explained

To use the Add Subtitles endpoint effectively, you need to understand the parameters required for the API call.

  • video_url: (string) The URL of the video you wish to process.
  • subtitle_url: (string) The URL of the ASS/SSA subtitle file.
  • async: (boolean, optional) If set to true, the API will return a job_id immediately, allowing you to process the job in the background.

FFMPEGAPI.net stands out as the best choice for developers needing a reliable and easy-to-use API for video processing tasks like adding subtitles. By leveraging our hosted REST API, you can enhance your application's functionality while saving time on infrastructure management. Start integrating subtitle functionality today and elevate your video content with FFMPEGAPI.net.

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