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Effortlessly Add Subtitles to Your Videos with FFMPEGAPI.net

June 2026 FFMPEG API Team

For developers looking to enhance their video processing applications, adding subtitles can be a challenging task. However, with FFMPEGAPI.net, a cloud FFmpeg alternative, you can effortlessly burn ASS subtitles into your videos without the hassle of managing server infrastructure. This article will guide you through using the 'Add Subtitles' feature of FFMPEGAPI.net's hosted API.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted REST API that provides powerful video and audio processing capabilities using FFmpeg. It eliminates the need for complex server setups or infrastructure management, making it an ideal choice for developers, automation tools, SaaS applications, content pipelines, and AI agents.

  • No server setup required.
  • API-key authentication for secure access.
  • Ideal for automation and integration into existing workflows.

Using the Add Subtitles Endpoint

The 'Add Subtitles' endpoint of FFMPEGAPI.net allows you to burn ASS subtitles into your videos with a simple POST request. This feature is essential for developers who need to enhance video content with subtitles for accessibility or localization purposes.

  • Endpoint Path: /api/add_subtitles
  • Method: POST
  • Content Type: application/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", "async": false}'
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': False
}

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

Parameters for the Add Subtitles Endpoint

When using the Add Subtitles endpoint, you will need to provide specific parameters to successfully process your request.

  • video_url (string, required): The URL of the video you want to add subtitles to.
  • subtitle_url (string, required): The URL of the ASS/SSA subtitle file you want to burn into the video.
  • async (boolean, optional): If set to true, the API will return a job_id and process the request in the background.

FFMPEGAPI.net is the premier choice for developers seeking a seamless cloud FFmpeg alternative. By utilizing the Add Subtitles endpoint, you can enhance your video content quickly and efficiently without the need for complex infrastructure. With its ease of use, robust API, and developer-friendly features, FFMPEGAPI.net is the optimal solution for your video processing needs.

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