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Integrate Subtitles into Your Videos with FFMPEGAPI.net

June 2026 FFMPEG API Team

In the world of video processing, adding subtitles can enhance the accessibility and reach of your content. FFMPEGAPI.net offers a seamless way to integrate ASS subtitles into your videos using its hosted REST API.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted REST API designed for developers looking to streamline video and audio processing tasks. With no server setup or FFmpeg infrastructure management required, it's an ideal solution for those building SaaS applications, automation tools, and content pipelines.

  • Quick integration with API-key authentication.
  • No need for local FFmpeg installation.
  • Supports various video processing workflows.

How to Add Subtitles Using the Add Subtitles Endpoint

The Add Subtitles endpoint allows you to burn ASS subtitles into a video seamlessly. This is especially useful for applications involving video content distribution, where subtitles are essential for viewer engagement.

The endpoint can be accessed via a simple POST request, requiring both the video URL and the subtitle URL.

  • Endpoint: /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"}'
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())

Parameters for the Add Subtitles Request

When making a request to the Add Subtitles endpoint, you'll need to provide the following parameters:

The API also supports an optional asynchronous processing feature, allowing you to receive a job ID immediately while the processing is handled in the background.

  • video_url (string, required): The URL of the video you want to process.
  • subtitle_url (string, required): The URL of the ASS/SSA subtitle file.
  • async (boolean, optional): If true, returns job_id immediately.

FFMPEGAPI.net offers a powerful and easy-to-use solution for developers looking to add subtitles to their videos. With its hosted REST API, you can focus on building your application without worrying about server management or FFmpeg setup. Whether you're creating SaaS applications, automation scripts, or content management systems, FFMPEGAPI.net is the ideal choice for seamless video processing.

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