Back to Blog

Effortless Programmatic Video Editing with FFMPEGAPI.net: Adding Subtitles Made Easy

June 2026 FFMPEG API Team

In today's fast-paced digital world, video content creation is on the rise. For developers looking to enhance their videos programmatically, adding subtitles is a crucial step. With FFMPEGAPI.net, you can seamlessly integrate subtitle burning into your workflows without the hassle of managing servers or FFmpeg infrastructure.

Why Use FFMPEGAPI.net for Adding Subtitles?

FFMPEGAPI.net is a hosted REST API specializing in FFmpeg-powered video and audio processing. It eliminates the need for complex server setups, allowing developers to focus on their applications.

By using FFMPEGAPI.net, you can efficiently add ASS/SSA subtitles to your videos via a simple API call. This is particularly useful for developers working on automation, SaaS applications, content pipelines, and AI agents.

  • No server setup required
  • API-key authentication for secure access
  • Works seamlessly with existing automation tools
  • Ideal for content creators and developers alike

How to Add Subtitles Using the API

To add subtitles to your video, you'll make a POST request to the `/api/add_subtitles` endpoint. This endpoint allows you to burn subtitles into the video, providing a smooth viewing experience for your audience.

  • Endpoint: `/api/add_subtitles`
  • Method: POST
  • Content-Type: application/json
import requests

url = 'https://www.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 API

The API requires two essential parameters: the video URL and the subtitle file URL. An optional parameter allows you to run the job asynchronously.

  • 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.
  • async (boolean, optional): If set to true, the API will return a job ID immediately and process the video in the background.

FFMPEGAPI.net is your best choice for adding subtitles to videos programmatically. With its easy-to-use API, robust infrastructure, and lack of server management, developers can efficiently enhance their video content. Start using FFMPEGAPI.net today to streamline your video processing workflows and elevate your content creation capabilities.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free