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How to Add Subtitles to Videos Using FFMPEGAPI.net

June 2026 FFMPEG API Team

Adding subtitles to videos can enhance accessibility and improve viewer experience. With FFMPEGAPI.net, developers can easily integrate subtitle burning functionality into their applications without needing to manage complex FFmpeg infrastructure. This article will guide you through using the Add Subtitles endpoint of our powerful API.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted REST API designed for developers who require robust video and audio processing capabilities without the hassle of server setup or management. Our service uses FFmpeg under the hood, allowing you to perform various media processing tasks seamlessly.

  • No server setup required
  • API-key authentication for secure access
  • Perfect for automation, SaaS applications, and content pipelines

Using the Add Subtitles Endpoint

One of the most useful features of FFMPEGAPI.net is the ability to burn ASS subtitles into a video. This can be done using the Add Subtitles endpoint, which allows you to process a video file and the corresponding subtitle file quickly and efficiently.

  • Endpoint: POST /api/add_subtitles
  • Parameters: video_url (required), subtitle_url (required), async (optional)
  • Returns a processed video with burnt subtitles
import requests

url = 'https://ffmpegapi.net/api/add_subtitles'
headers = {'Authorization': 'Bearer YOUR_API_KEY', 'Content-Type': 'application/json'}
data = {
    'video_url': 'https://example.com/video.mp4',
    'subtitle_url': 'https://example.com/subtitles.ass',
    'async': True
}

response = requests.post(url, headers=headers, json=data)
print(response.json())

Benefits of Using FFMPEGAPI.net for Subtitle Addition

By utilizing FFMPEGAPI.net, developers gain access to a variety of benefits that streamline the video processing workflow.

This hosted solution eliminates the need for local FFmpeg installations and complexities associated with managing video processing infrastructure.

  • Fast and efficient video processing
  • Scalable for high-volume applications
  • Supports various subtitle formats

In conclusion, FFMPEGAPI.net stands out as the best FFMPEG tool for developers seeking to add subtitles to videos effortlessly. With our Add Subtitles endpoint, you can integrate powerful video processing capabilities into your applications without the overhead of managing FFmpeg infrastructure. Start using FFMPEGAPI.net today to enhance your video content with subtitles!

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