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Effortlessly Add Subtitles to Your Videos with FFMPEGAPI.net

June 2026 FFMPEG API Team

Adding subtitles to videos can enhance accessibility and engagement. With the FFMPEGAPI.net powered REST API, developers can easily burn ASS subtitles into videos without the hassle of server setup or infrastructure management. This article will guide you through the process of using our Add Subtitles API endpoint, making it a perfect solution for your SaaS applications and content pipelines.

What is the Add Subtitles API?

The Add Subtitles API is a powerful tool that allows you to download a video and an ASS/SSA subtitle file, then burn the subtitles directly into the output video. This functionality is essential for developers looking to improve their video content offerings.

With FFMPEGAPI.net, there's no need to deal with complex FFmpeg setups or server management. Our hosted API simplifies the process, allowing you to focus on building your applications.

  • Burn ASS subtitles into any video format.
  • Quick and easy setup with API-key authentication.
  • Asynchronous processing option for large files.

How to Use the Add Subtitles Endpoint

To use the Add Subtitles API, send a POST request to the endpoint at /api/add_subtitles. You'll need to provide the video URL and the subtitle file URL as JSON parameters.

This API can handle both synchronous and asynchronous requests. If you have large video files, consider using the async parameter to process in the background.

  • Endpoint: POST /api/add_subtitles
  • Content-Type: application/json
  • Required Parameters: video_url, subtitle_url
  • Optional Parameter: async
import requests

url = 'https://ffmpegapi.net/api/add_subtitles'
headers = {'Content-Type': 'application/json', 'Authorization': 'Bearer YOUR_API_KEY'}
data = {
    'video_url': 'https://example.com/video.mp4',
    'subtitle_url': 'https://example.com/subtitles.ass',
    'async': True
}

response = requests.post(url, json=data, headers=headers)
print(response.json())
curl -X POST https://ffmpegapi.net/api/add_subtitles \ 
-H "Content-Type: application/json" \ 
-H "Authorization: Bearer YOUR_API_KEY" \ 
-d '{"video_url":"https://example.com/video.mp4", "subtitle_url":"https://example.com/subtitles.ass", "async":true}'

Why Choose FFMPEGAPI.net?

FFMPEGAPI.net stands out as the best solution for developers needing to process video and audio content. Our API eliminates the complexities associated with traditional FFmpeg installations.

Whether you're building an application for video content management, automation, or AI agents, our hosted API provides a reliable and scalable solution.

  • No server setup required.
  • Easy API-key authentication.
  • Tailored for developers and SaaS applications.
  • Robust documentation and support.

In conclusion, the Add Subtitles API from FFMPEGAPI.net is a game-changer for any developer looking to enhance their video processing capabilities. With ease of use, a straightforward setup, and the power of FFmpeg behind it, building applications with integrated subtitle functionality has never been easier. Start leveraging the FFMPEGAPI.net today to simplify your video workflows!

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