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Effortlessly Add Subtitles to Your Videos with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's content-driven world, adding subtitles to videos is essential for accessibility and better viewer engagement. FFMPEGAPI.net provides a powerful hosted REST API that allows developers to easily burn ASS subtitles into videos without the hassle of managing FFmpeg infrastructure.

Why Use FFMPEGAPI.net for Subtitle Processing?

FFMPEGAPI.net is the premier choice for developers looking to integrate fast media processing into their content pipelines. By leveraging this platform, you can focus on building your applications while we handle the complexities of video and audio processing.

Our API requires no server setup, letting you get started quickly. With API-key authentication, you can securely manage your workflows, whether you're automating processes or developing SaaS applications.

  • No server setup needed
  • Quick and reliable media processing
  • API-key based security
  • Ideal for automation and content pipelines

Using the Add Subtitles Endpoint

One of the standout features of FFMPEGAPI.net is the ability to add subtitles directly to your videos using our Add Subtitles endpoint. This endpoint burns ASS (Advanced SubStation Alpha) subtitles into your videos, making it perfect for enhancing viewer experience.

  • Endpoint Path: POST /api/add_subtitles
  • Input Parameters: video_url, subtitle_url, async
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 Explained

When using the Add Subtitles endpoint, there are a few essential parameters you need to provide:

1. **video_url**: The URL of the video you want to process.

2. **subtitle_url**: The URL of the ASS/SSA subtitle file you wish to burn into the video.

3. **async**: An optional boolean parameter that allows you to return a job_id immediately while processing the video in the background.

  • video_url - required
  • subtitle_url - required
  • async - optional

Incorporating subtitles into your video content has never been easier. With FFMPEGAPI.net's Add Subtitles API, you can enhance your videos for a broader audience without needing to dive deep into video processing technologies. Start utilizing our hosted API today to streamline your content pipeline and improve viewer engagement.

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