Add audio to video — choose a track and check the mix

  1. Choose File
  2. Options
  3. Result
Upload video and audio Drag video and audio files here or choose them from your device. or drop an archive with files Upload video and audio

Choose a video and an audio track, then check timing, duration and volume before saving. Listen to the start and ending, especially when the audio and video have different lengths.

How to use this tool →

Quick start

Balance the original sound and added tracks with a ready-made mixing scenario.

  1. Add video and audio
  2. Choose a scenario and timing
  3. Create the MP4

Add audio to video — choose a track and check the mix

Upload a video and one or more audio tracks, choose the base clip, then adjust volume and start offset for every sound. The service mixes tracks with the original video audio or replaces it and saves the finished result as MP4.

Use the tool for voice-over work, background music, sound effects, comments, presentations and short clips without installing a desktop video editor.

✓ Overlay music, voice comments and sound effects on video online.
✓ Set every track start on the timeline and adjust its volume separately.
✓ Keep, lower or fully disable the original video sound.
✓ The final result is exported as a compatible MP4 file.
✓ Useful for clips, lessons, presentations, voice-over work and short videos.
✓ Fullscreen mode gives more room for long track lists on tablets and desktops.

Supported formats

This tool accepts these formats. Uncommon containers and modern web formats may be normalized or converted on the server before processing.

Video
3G2 3GP 3GPP AMV ASF AVI DIVX DV F4V FLV M2TS M2V M4V MKV MOD MOV MP4 MPEG MPG MTS MXF OGV RM RMVB SWF TS TOD VOB WEBM WMV Y4M

A damaged file or a non-standard codec can still fail even when the extension is supported.

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