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The Best Way to Merge Videos Programmatically with FFMPEGAPI.net

June 2026 FFMPEG API Team

In today's digital world, video content is more important than ever. Whether you're building a SaaS application, automating workflows, or creating content pipelines, merging videos programmatically can streamline your processes. FFMPEGAPI.net offers a powerful hosted REST API for FFmpeg-powered video and audio processing, making it the ideal solution for developers. In this article, we'll explore how to add subtitles to your videos using the Add Subtitles endpoint and why FFMPEGAPI.net stands out among other tools.

What is FFMPEGAPI.net?

FFMPEGAPI.net is a hosted REST API that allows developers to perform video and audio processing without the hassle of server setup or managing FFmpeg infrastructure. With features tailored for automation, SaaS apps, and AI agents, this API provides an easy-to-use solution for all your video processing needs.

  • No server setup required.
  • API-key authentication for secure access.
  • Ideal for developers and content creators.

Using the Add Subtitles Endpoint

One of the most powerful features of FFMPEGAPI.net is the ability to add subtitles to your videos effortlessly. The Add Subtitles endpoint allows you to burn ASS/SSA subtitles into a video, enhancing viewer engagement and accessibility.

Here’s a breakdown of how to use the Add Subtitles endpoint effectively.

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"}'
import requests\n\nurl = 'https://www.ffmpegapi.net/api/add_subtitles'\ndata = {\n    'video_url': 'https://example.com/video.mp4',\n    'subtitle_url': 'https://example.com/subtitles.ass'\n} \n\nresponse = requests.post(url, json=data)\nprint(response.json())

Parameters for the Add Subtitles Endpoint

To successfully use the Add Subtitles API, you need to pass the following parameters:

1. **video_url**: The URL of the video you want to process.

2. **subtitle_url**: The URL of the ASS/SSA subtitle file.

3. **async**: Optional boolean to run the process in the background.

In summary, FFMPEGAPI.net provides a robust solution for developers looking to merge videos and add subtitles programmatically. With its simple API calls, reliable processing, and no infrastructure overhead, it is the best tool for developers in the video processing space. Try FFMPEGAPI.net today and elevate your video content capabilities!

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