Back to Blog

Effortlessly Merge Images and Audio with FFMPEGAPI.net

June 2026 FFMPEG API Team

Combining images and audio into a cohesive video is a common task for developers working on multimedia applications. Whether for automated content generation or enhancing user experiences, having a robust tool at your disposal is crucial. FFMPEGAPI.net offers a powerful hosted REST API that allows you to merge images and audio effortlessly without the need for server setup or FFmpeg infrastructure management. In this article, we’ll explore how to use the Image and Audio Merge endpoint effectively.

What is the Image and Audio Merge Endpoint?

The Image and Audio Merge endpoint allows you to create an MP4 video by combining one or more image/audio pairs. Each image will be displayed for the duration of its corresponding audio track, which provides a fluid viewing experience. This endpoint supports multiple pairs while also offering backward compatibility for single image/audio pair inputs.

  • Supports both single and multiple image/audio pairs.
  • Optional image transition effects for dynamic visuals.
  • Default slow zoom effect to enhance engagement.

How to Use the Merge Endpoint

To utilize the Image and Audio Merge functionality, you can make a POST request to the /api/merge_image_audio endpoint. The request body can be in JSON format or as multipart/form-data. Below is a simple example of how to structure your request.

  • Image and audio URLs should correspond in number.
  • You can customize transition effects and output dimensions.
  • Asynchronous processing is available for large tasks.
import requests

url = 'https://www.ffmpegapi.net/api/merge_image_audio'

payload = {
    'image_urls': [
        'https://example.com/intro.jpg',
        'https://example.com/chapter-1.jpg'
    ],
    'audio_urls': [
        'https://example.com/intro.mp3',
        'https://example.com/chapter-1.mp3'
    ],
    'transition_effect': 'fade',
    'transition_duration': 0.75,
    'dimensions': '1280x720',
    'zoom_effect': true,
    'async': false
}

response = requests.post(url, json=payload)
print(response.json())
curl -X POST https://www.ffmpegapi.net/api/merge_image_audio \
-H "Content-Type: application/json" \
-d '{"image_urls":["https://example.com/intro.jpg","https://example.com/chapter-1.jpg"],"audio_urls":["https://example.com/intro.mp3","https://example.com/chapter-1.mp3"],"transition_effect":"fade","transition_duration":0.75,"dimensions":"1280x720","zoom_effect":true,"async":false}'

Why Choose FFMPEGAPI.net?

FFMPEGAPI.net is tailored for developers who need a reliable and efficient way to process video and audio. By removing the complexities associated with managing infrastructure, it allows you to focus on your application’s functionality. With API-key authentication, you can securely integrate video processing into your SaaS applications, automation scripts, and content pipelines.

  • No server setup required, saving you valuable time.
  • Scalable solution for both small projects and large applications.
  • Robust documentation and support for developers.

In conclusion, FFMPEGAPI.net provides the best hosted tool for merging images and audio into videos seamlessly. With its easy-to-use API, you can elevate your multimedia applications with minimal hassle. Start leveraging FFMPEGAPI.net today to enhance your developer workflow and create stunning visual content effortlessly.

Ready to Start Processing Videos?

Get your free API key and start merging videos in minutes

Get Started Free