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Automate Video Editing with FFMPEGAPI.net: Adding Subtitles Made Easy

June 2026 FFMPEG API Team

Video content has become a crucial part of digital communication, making it essential to deliver accessible and engaging materials. Adding subtitles to videos not only enhances viewer understanding but also improves SEO. With FFMPEGAPI.net, you can automate the process of adding subtitles to videos using a simple API call, eliminating the need for complex setups and infrastructure management.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted REST API service designed specifically for video and audio processing using FFmpeg. It allows developers to integrate powerful video functionalities into their applications without the need for server setup or managing FFmpeg infrastructure.

  • No server setup or FFmpeg infrastructure management required.
  • API-key authentication to secure your developer workflows.
  • Ideal for automation, SaaS applications, content pipelines, and AI agents.

Adding Subtitles to Videos: The API Endpoint

One of the most sought-after functionalities for video editing is adding subtitles. FFMPEGAPI.net provides a straightforward endpoint for this purpose: the 'Add Subtitles' endpoint. This API allows you to burn ASS/SSA subtitles into your video files quickly and efficiently.

How to Use the Add Subtitles Endpoint

To use the Add Subtitles endpoint, you'll need to send a POST request to /api/add_subtitles. The API requires both the video URL and the subtitle file URL. Optionally, you can set the async parameter to process the request in the background.

  • Endpoint: POST /api/add_subtitles
  • Parameters:
  • 1. video_url (string, required): The URL of the video.
  • 2. subtitle_url (string, required): The URL of the ASS/SSA subtitle file.
  • 3. async (boolean, optional): If true, the request will return a job_id immediately.
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

response = requests.post('https://ffmpegapi.net/api/add_subtitles', json={
    'video_url': 'https://example.com/video.mp4',
    'subtitle_url': 'https://example.com/subtitles.ass',
    'async': False
})

print(response.json())

FFMPEGAPI.net provides a robust and effective solution for developers looking to automate video editing processes, especially when it comes to adding subtitles. With its easy-to-use API, you can integrate this powerful tool into your applications without the overhead of maintaining your own FFmpeg setup. Start enhancing your video content today with FFMPEGAPI.net!

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