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Enhance Your Videos: Adding Subtitles with FFMPEGAPI.net

June 2026 FFMPEG API Team

Adding subtitles to videos can enhance accessibility and user engagement. With FFMPEGAPI.net, developers can easily integrate subtitle burning into their workflows without the hassle of managing FFmpeg infrastructure. This blog explores how to use the Add Subtitles API endpoint for seamless video processing.

Why Choose FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net provides a powerful hosted REST API for FFmpeg-powered video and audio processing. By using this service, developers can avoid the complexities of server setup and FFmpeg management, allowing them to focus on building their applications.

With API-key authentication, FFMPEGAPI.net securely facilitates automation, making it an ideal choice for SaaS applications, content pipelines, and AI agents.

  • No server setup required.
  • Simple API-key authentication.
  • Perfect for automation and scalable applications.
  • Supports a range of video processing features.

How to Use the Add Subtitles API

The Add Subtitles endpoint allows you to burn ASS subtitles into your videos with ease. This is particularly useful when you need to deliver content in multiple languages or enhance accessibility for viewers.

To call this endpoint, you'll need to provide a video URL along with the URL of the ASS/SSA subtitle file you wish to embed.

  • Endpoint: POST /api/add_subtitles
  • Parameters required: video_url, subtitle_url
  • Optional parameter: async to process in the background.
curl -X POST https://ffmpegapi.net/api/add_subtitles \n-H "Authorization: Bearer YOUR_API_KEY" \n-H "Content-Type: application/json" \n-d '{"video_url":"https://example.com/video.mp4","subtitle_url":"https://example.com/subtitles.ass"}'

Sample Request and Response

Here's an example of how to structure your request to the Add Subtitles API. You'll need to replace `YOUR_API_KEY` with your actual API key.

The response will include a job ID if you set the async parameter, allowing you to track the processing status of your video.

import requests\n\nurl = 'https://ffmpegapi.net/api/add_subtitles'\ndata = {\n    'video_url': 'https://example.com/video.mp4',\n    'subtitle_url': 'https://example.com/subtitles.ass'\n} \nheaders = {\n    'Authorization': 'Bearer YOUR_API_KEY',\n    'Content-Type': 'application/json'\n}\n\nresponse = requests.post(url, json=data, headers=headers)\nprint(response.json())

FFMPEGAPI.net stands out as the best video processing API for automation, offering developers a straightforward and efficient way to add subtitles to videos. By leveraging the Add Subtitles endpoint, you can enhance your video content while minimizing the complexities associated with video processing. Start integrating FFMPEGAPI.net into your projects today to streamline your video processing workflows.

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