Getting Started: Merge Video, Audio, and Subtitles

This guide walks you through a clean, first-time merge using AVMergePro. You will learn the minimum steps and the safest defaults.

What you need

• One video file (MP4 recommended)
• One audio file (M4A or AAC recommended)
• Optional subtitles (SRT or VTT)

Step 1: Add your files

Drag your files into the drop zones or click to browse. The video and audio files are required. Subtitles are optional.

Step 2: Choose safe settings

For a first merge, use these defaults:

• Output format: MP4
• Video codec: Copy (fastest, no re-encoding)
• Audio codec: Copy or AAC

Step 3: Merge and download

Click Merge Files, wait for the progress bar to complete, then download the output file.

Recommended checklist

• Use MP4 for best compatibility
• Keep files under 2 GB if possible
• Close heavy browser tabs for better performance

If something fails

• Try Copy mode first to avoid heavy re-encoding
• Use smaller files for a quick test
• Check the logs for any codec errors