Back to Blog

Automate Video Editing: How to Add Subtitles with FFMPEGAPI.net

June 2026 FFMPEG API Team

In the world of video content, adding subtitles is essential for accessibility and user engagement. Automating this process can save time and resources, especially for developers working on SaaS applications or content pipelines. With FFMPEGAPI.net, integrating subtitle addition into your video workflow is straightforward and efficient.

Why Choose FFMPEGAPI.net for Subtitle Addition

FFMPEGAPI.net is a hosted REST API that simplifies video and audio processing. Unlike managing your own FFmpeg infrastructure, FFMPEGAPI.net allows developers to focus on building applications while handling the complexities of video transformations.

With API-key authentication, you can seamlessly integrate subtitle addition into your projects without worrying about server setup.

  • No server management required
  • Instant API access with key authentication
  • Perfect for developers, automation, and AI workflows

Using the Add Subtitles API Endpoint

The `Add Subtitles` endpoint enables you to burn ASS subtitles directly into a video. This is especially useful for scenarios where subtitles need to be permanently embedded in the video for platforms that do not support external subtitle files.

The endpoint follows a straightforward REST API design, making it easy for developers to use.

  • Endpoint Path: `/api/add_subtitles`
  • HTTP Method: POST
  • Content Type: application/json
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())
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"}'

Integrating subtitle addition into your video workflows has never been easier with FFMPEGAPI.net. By leveraging the Add Subtitles endpoint, developers can automate the process, ensuring that videos are accessible and engaging. Whether you're building SaaS applications or enhancing content pipelines, FFMPEGAPI.net provides the tools you need without the hassle of managing your own FFmpeg server.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free