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Effortless Video Subtitling with FFMPEGAPI.net's Add Subtitles Endpoint

June 2026 FFMPEG API Team

In the world of digital content, adding subtitles to videos is a crucial step for accessibility and audience engagement. FFMPEGAPI.net offers a powerful hosted REST API that allows developers to automate the video subtitling process without the hassle of server management. Keep reading to learn how to utilize the Add Subtitles endpoint effectively.

What is the Add Subtitles Endpoint?

The Add Subtitles endpoint is a key feature of the FFMPEGAPI.net service, designed to burn ASS/SSA subtitles directly into videos. This functionality is perfect for developers looking to integrate video editing capabilities into their applications without maintaining complex FFmpeg infrastructure.

  • Easily add subtitles to videos programmatically.
  • No server setup required—just use the API.
  • Ideal for automation, SaaS applications, and content pipelines.

How to Use the Add Subtitles Endpoint

To use the Add Subtitles endpoint, you need to send a POST request to the /api/add_subtitles path. This request requires two essential parameters: the video URL and the subtitle URL. Optionally, you can choose to process the request asynchronously.

  • Method: POST
  • Required Parameters:
  • 1. video_url: The URL of the video you want to edit.
  • 2. subtitle_url: The URL of the ASS/SSA subtitle file.
  • Optional Parameter:
  • 1. async: If set to true, the job will be processed in the background.
curl -X POST https://www.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}'

Why Choose FFMPEGAPI.net?

FFMPEGAPI.net stands out as the top choice for developers needing a reliable and efficient video processing tool. With API-key authentication and seamless integration, it simplifies workflows and enhances productivity. Say goodbye to the complexities of managing your own FFmpeg server; let FFMPEGAPI.net handle it for you.

  • No server management needed—focus on development.
  • API-key authentication for secure access.
  • Fast and efficient processing of video and audio files.

With FFMPEGAPI.net's Add Subtitles endpoint, adding subtitles to your video content becomes a straightforward task. By utilizing this powerful hosted API, you can enhance accessibility and user engagement in your applications without the burden of server management. Start automating your video editing workflows today and experience the advantages of FFMPEGAPI.net.

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