Creator Media Tool

Add Audio to Video

Combine one local video file with one local audio track directly in your browser. Your files are not uploaded or stored on a server.

Desktop recommended: This tool uses your device CPU and memory. For best results, use the latest Chrome or Edge on a desktop computer.
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Select video MP4, MOV, or WebM · Maximum 100 MB
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Select audio MP3, M4A, WAV, AAC · Maximum 50 MB

Output settings

The video stream is copied when possible. Audio is encoded as AAC for MP4 compatibility.

Select local media files to begin.

Limits: Use files you own or are authorized to edit. The tool does not download third-party media, bypass access controls, or remove DRM. Long or large videos can fail due to browser memory limits.