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How to Add Subtitles to Your Videos Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital landscape, enhancing video content with subtitles is crucial for accessibility and engagement. Utilizing FFMPEGAPI.net, a powerful hosted REST API, you can efficiently add ASS/SSA subtitles to your videos without the hassle of managing your own FFmpeg infrastructure. This article will guide you through the process of adding subtitles using our easy-to-use API.

Why Use FFMPEGAPI.net for Subtitles?

FFMPEGAPI.net offers a hassle-free solution for developers who need to process video and audio files. Unlike traditional methods, which often require complex server setups and deep knowledge of FFmpeg, our platform provides a straightforward API for quick integration into your applications.

With API-key authentication and a simple endpoint for adding subtitles, you can focus on your application logic rather than the intricacies of video processing.

  • No server setup required.
  • Handles background processing with ease.
  • Ideal for automation, SaaS apps, and content pipelines.
  • Secure API-key authentication for streamlined workflows.

Using the Add Subtitles Endpoint

The '/api/add_subtitles' endpoint allows you to burn ASS subtitles into your videos with a simple POST request. By providing the video URL and the subtitle URL, the API will process the video and embed the subtitles, ensuring a seamless viewing experience.

  • Endpoint: POST /api/add_subtitles
  • Accepts video URL and ASS/SSA subtitle file URL.
  • Optional asynchronous processing to handle larger files.
import requests

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

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

Parameters for the Add Subtitles Request

To successfully call the add subtitles API, you need to include specific parameters in your request. Here's a breakdown of each parameter:

  • video_url: (string) The URL of the video you want to process. This parameter is required.
  • subtitle_url: (string) The URL of the ASS or SSA subtitle file. This parameter is required.
  • async: (boolean) If true, the request will return a job ID immediately, allowing you to check progress later.

In conclusion, using FFMPEGAPI.net to add subtitles to your videos is not only efficient but also user-friendly. By leveraging our hosted API, developers can save time and resources, allowing them to enhance their video content effortlessly. Whether you're building a SaaS application or an automation tool, our API provides a reliable solution for all your video processing needs. Start integrating with FFMPEGAPI.net today and take your video projects to the next level!

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