Back to Blog

Automate Video Editing with FFMPEGAPI.net: Adding Subtitles with a Simple API Call

June 2026 FFMPEG API Team

In today's fast-paced digital environment, automation is key to efficient video processing workflows. FFMPEGAPI.net provides a powerful hosted REST API that simplifies video editing tasks, such as adding subtitles, without the need for server setup or FFmpeg infrastructure management. This article will guide you through the process of burning ASS subtitles into your videos using our Add Subtitles API endpoint.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted solution that enables developers to leverage the power of FFmpeg for video and audio processing. With our API, you can perform complex video editing tasks effortlessly.

Our service eliminates the need for manual server configurations, allowing you to focus on building applications while we manage the heavy lifting.

  • Hosted REST API for video and audio processing.
  • No need for infrastructure management.
  • API-key authentication for secure access.

Using the Add Subtitles API Endpoint

One of the many functionalities offered by FFMPEGAPI.net is the ability to add subtitles to your videos. Our Add Subtitles API endpoint allows you to burn ASS/SSA subtitles directly into your video files with a simple HTTP POST request.

This is particularly useful for content creators looking to enhance accessibility and reach a wider audience.

  • Burns ASS subtitles into the video.
  • Requires a video URL and a subtitle file URL.
  • Supports asynchronous processing.
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())

API Parameters and Response

To use the Add Subtitles API endpoint, you need to provide specific parameters in your request. Here’s a quick overview of the required parameters:

  • video_url (string): The URL of the video you want to add subtitles to.
  • subtitle_url (string): The URL of the ASS/SSA subtitle file you wish to burn into the video.
  • async (boolean): Optional. If set to true, the processing will happen in the background, and you'll receive a job ID immediately.

FFMPEGAPI.net is the premier choice for developers looking to automate video editing tasks such as adding subtitles. With its ease of use, robust functionality, and no hassle of infrastructure management, it's designed to streamline your development workflow. Start leveraging our powerful API today and enhance your video processing capabilities with just a few lines of code!

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free