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Effortlessly Add Subtitles to Your Videos with FFMPEGAPI.net

June 2026 FFMPEG API Team

Adding subtitles to videos can enhance viewer engagement and accessibility. With FFMPEGAPI.net, developers can programmatically burn ASS/SSA subtitles into their videos using a simple hosted API. This eliminates the need for complex server setups or FFmpeg management, making it the best solution for content creators and developers alike.

Why Choose FFMPEGAPI.net for Video Processing?

FFMPEGAPI.net offers a powerful hosted REST API that simplifies video and audio processing. With no need to manage any FFmpeg infrastructure, developers can focus on building features rather than worrying about server maintenance.

  • API-key authentication for secure access.
  • Quick integration with automation, SaaS applications, and content pipelines.
  • Robust support for various video and audio processing tasks.

How to Add Subtitles Using the Add Subtitles Endpoint

The Add Subtitles endpoint is designed to burn ASS subtitles into a video file. This is particularly useful for ensuring that your content is accessible to a broader audience. The API call involves providing the video URL and the subtitle URL, making the process straightforward.

  • Endpoint: POST /api/add_subtitles
  • Parameters required: video_url (string), subtitle_url (string), async (boolean, optional).
  • Burns subtitles directly into the output video.
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"}'
import requests

url = 'https://ffmpegapi.net/api/add_subtitles'
data = {"video_url": "https://example.com/video.mp4", "subtitle_url": "https://example.com/subtitles.ass"}

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

Advantages of Using the Async Option

Using the async parameter allows you to return a job ID immediately while processing happens in the background. This is particularly useful for handling larger videos or when you want to keep the user interface responsive.

  • Submit jobs without blocking your application.
  • Check job status later to retrieve the processed video.
  • Ideal for batch processing videos in content pipelines.
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": true}'

In conclusion, FFMPEGAPI.net provides developers with an efficient way to add subtitles to videos programmatically, thus enhancing their projects with minimal technical overhead. The hosted API streamlines the process, allowing you to focus on what matters most—delivering high-quality content to your audience. Start using FFMPEGAPI.net today to simplify your video processing workflows!

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