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Add Audio to Video

Add or replace audio tracks in videos. All processing happens in your browser using FFmpeg WASM.

Select Video

How to Use

  1. Select a video file using the first drop zone
  2. Upload an audio file using the second drop zone
  3. Choose audio mode:
    • Replace Audio: Remove original video audio and use only the new audio track
    • Mix Audio: Combine the new audio with the original video audio (adjust volumes as needed)
  4. If mixing, adjust volume levels for both tracks (100% = original volume)
  5. Click "Add Audio to Video" to process
  6. Download the result

About Adding Audio to Video

This tool allows you to add background music, narration, or any audio track to your videos. You can either replace the existing audio completely or mix it with the original.

Common Uses:
  • Add Music: Add background music to silent videos or vlogs
  • Replace Audio: Fix poor audio quality by replacing with a separately recorded track
  • Add Narration: Add voiceover narration to instructional videos
  • Mix Tracks: Combine multiple audio sources at custom volume levels

Related Utils

Video Merge Tool Video Cut Tool Video Rotate Tool Video Crop Tool

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