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How to Add Subtitles to Videos Using FFMPEGAPI.net

June 2026 FFMPEG API Team

As a developer, incorporating subtitles into your videos can enhance accessibility and user engagement. With FFMPEGAPI.net, you can easily add ASS/SSA subtitles to any video via a simple API call, allowing you to focus on your application without worrying about the underlying infrastructure.

What is FFMPEGAPI.net?

FFMPEGAPI.net provides a hosted REST API tailored for FFmpeg-powered video and audio processing. This means you don’t have to manage any server setup or FFmpeg infrastructure, making it ideal for developers looking to streamline their workflows.

  • API-key authentication for secure access.
  • Perfect for automation, SaaS applications, and content pipelines.
  • Robust support for various video processing tasks.

Using the Add Subtitles Endpoint

To add subtitles to your video, you can utilize the 'Add Subtitles' endpoint of the FFMPEGAPI.net. This endpoint allows you to burn ASS/SSA subtitles into a video seamlessly.

  • Endpoint: POST /api/add_subtitles
  • Required parameters: video_url, subtitle_url
  • Optional parameter: async (process in the background)
curl -X POST https://www.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://www.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())

Integrating subtitles into your videos is now easier than ever with the FFMPEGAPI.net. By leveraging its powerful API, you can enhance your video content without the overhead of managing servers or complex configurations. Start using FFMPEGAPI.net today to elevate your SaaS applications and automate your content workflows.

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