FFmpeg Merge API: How to Combine Videos and Images Seamlessly (2026)

Creating complex video content often requires merging different assets like clips, images and background music. The FFmpeg Merge API simplifies this process, allowing you to build automated video creation workflows.

Understanding Media Merging

The Merge API acts as a simplified interface for FFmpeg's complex filter graphs, making it accessible to any developer with a basic understanding of JSON.

Capabilities

• Combine Clips: Stitch multiple video files together sequentially.
• Overlay Audio: Add background tracks or voiceovers.
• Image Slideshows: Turn a series of images into a professional video.
• Transitions: Add fades and cuts between elements.

Step-by-Step Integration

Merging Multiple Videos

javascript
const mergeMedia = async (assets) => {
  const response = await fetch('https://eranol.com/api/v1/ffmpeg/merge', {
    method: 'POST',
    headers: {
      'x-api-key': process.env.ERANOL_API_KEY,
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      assets: assets,
      output_format: 'mp4',
      resolution: '1080p'
    })
  });
  return await response.json();
};

Advanced Workflows

Imagine a real estate app that automatically generates a video tour from the photos and clips uploaded by an agent. With the Merge API, this becomes a single background process.

Conclusion

The FFmpeg Merge API is a powerful tool for any developer looking to automate video creation. It provides the full power of FFmpeg without the steep learning curve.

Start merging today.