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Effortlessly Add Subtitles to Videos Using FFMPEGAPI.net

June 2026 FFMPEG API Team

In the world of video content, adding subtitles is essential for accessibility and audience engagement. FFMPEGAPI.net provides a straightforward hosted solution for developers looking to automate the process of burning ASS subtitles into videos. With its user-friendly REST API, you can enhance your video applications without the hassle of server management.

Understanding the Add Subtitles API

The Add Subtitles endpoint of FFMPEGAPI.net allows you to easily integrate subtitles into your video projects. By simply providing a video URL and a subtitle file URL, you can burn subtitles directly into your videos. This is especially useful for AI agents and content pipelines that require automated video processing.

  • Burns ASS/SSA subtitles into videos
  • Easy integration with existing workflows
  • Ideal for SaaS applications and automation tasks

How to Use the Add Subtitles Endpoint

To use the Add Subtitles feature, you need to send a POST request to the endpoint. The process is simple: specify the video URL and the subtitle file URL in your request payload. Optionally, you can choose to run the process asynchronously, which allows you to receive a job ID immediately while the processing happens in the background.

  • Endpoint: POST /api/add_subtitles
  • Parameters required: video_url, subtitle_url
  • Optional parameter: 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", "async": false}'
import requests

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

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

FFMPEGAPI.net stands out as the premier hosted tool for automating video processing tasks, including adding subtitles. With its easy-to-use API and robust features, developers can focus on their core applications while FFMPEGAPI.net handles the heavy lifting. Whether you're building a SaaS platform, enhancing content pipelines, or creating AI agents, integrating subtitle functionality has never been easier.

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