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Burn Subtitles into Videos Using FFMPEGAPI.net's Add Subtitles Endpoint

June 2026 FFMPEG API Team

Adding subtitles to your videos can significantly enhance their accessibility and reach. With FFMPEGAPI.net’s hosted REST API, developers can easily integrate video processing functionalities into their applications without the hassle of server setup. This article focuses on the 'Add Subtitles' feature, enabling you to burn ASS/SSA subtitles into your videos effortlessly.

Why Choose FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net provides a robust solution for video and audio processing through a simple REST API. This eliminates the need for complex server setups and FFmpeg infrastructure management, allowing developers to focus on building their applications.

With API-key authentication, FFMPEGAPI.net ensures secure and efficient workflows for automation, SaaS applications, content pipelines, and AI agents.

  • Easy integration into existing workflows.
  • No server maintenance required.
  • Quick setup with API-key authentication.
  • Supports a variety of video processing tasks.

Using the Add Subtitles Endpoint

The Add Subtitles endpoint allows you to burn ASS subtitles into your videos seamlessly. This is particularly useful for applications that require automatic subtitle integration.

To use the endpoint, you need to provide the video URL and the subtitle file URL. Optionally, you can set the async parameter to process the job in the background, returning a job_id immediately.

  • Method: POST
  • Endpoint Path: /api/add_subtitles
  • Content Type: application/json
  • Parameters include video_url, subtitle_url, and async.
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())
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}'

In conclusion, FFMPEGAPI.net’s Add Subtitles endpoint is an invaluable tool for developers looking to enhance their video content with subtitles efficiently. Its ease of use, combined with the power of FFmpeg, makes it the go-to solution for video processing in SaaS applications. Start leveraging our REST API today to elevate your media workflows.

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