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How to Add Subtitles to Your Videos Using FFMPEGAPI.net

June 2026 FFMPEG API Team

Adding subtitles to videos is a common requirement for developers creating video content. With FFMPEGAPI.net's hosted REST API, you can effortlessly add ASS subtitles to your videos without the hassle of server management or FFmpeg infrastructure. In this article, we’ll explore how to use the 'Add Subtitles' endpoint to streamline your video processing workflow.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted REST API that provides powerful video and audio processing capabilities using FFmpeg. It enables developers to integrate video processing features into their applications without the complexity of managing server infrastructure.

The API is particularly useful for SaaS applications, automation tasks, and content pipelines, allowing developers to focus on building their applications while leveraging the robust capabilities of FFmpeg.

Understanding the Add Subtitles Endpoint

The 'Add Subtitles' endpoint allows you to burn ASS subtitles directly into a video. This feature is essential for creating accessible content that can be enjoyed by a wider audience.

By using this endpoint, you can specify the video URL and the subtitle URL, and the API will handle the processing for you.

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

How to Use the Add Subtitles Endpoint

To use the 'Add Subtitles' endpoint, you need to send a POST request to the FFMPEGAPI.net API with the required parameters. Below is an example of how to structure your request.

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())
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"}'

Benefits of Using FFMPEGAPI.net for Subtitle Processing

With FFMPEGAPI.net, you gain several advantages when it comes to adding subtitles to your videos:

1. **No server setup required**: Focus on building your application without worrying about FFmpeg installation or server management.

2. **API-key authentication**: This ensures secure access to the API and allows you to manage your resources effectively.

3. **Scalability**: Easily handle multiple subtitle processing jobs, making it ideal for large-scale applications.

In conclusion, FFMPEGAPI.net provides a powerful and convenient solution for developers looking to add subtitles to their videos. With the 'Add Subtitles' endpoint, you can quickly and easily integrate subtitle functionality into your applications, enhancing user experience and accessibility. Start using FFMPEGAPI.net today and transform your video processing workflow!

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