Merge Audio

How does Merge Audio work?

Drop in two or more audio files (or videos — their audio track is used), reorder them with the up/down buttons, choose a silent gap or a crossfade between clips, pick MP3, M4A or WAV, then run it. Every clip is resampled to the same rate and layout first so the seams sound clean.

Can I trust the output for production?

Every file is decoded and joined entirely in your browser's memory — nothing is uploaded to a server, so your files stay private on your device.

Will this tool stay free?

This tool is completely free to use, with no account, watermark or file-count limit.