Audio Tools

Audio Merger

Merge multiple audio files into one online with FlashFile. Reorder, remove and combine MP3, WAV, M4A and more — all in your browser.

Runs entirely in your browser — your audio never leaves this device

Private & client-side

Your audio files are decoded, combined and re-encoded locally in your browser. Files are not uploaded to our servers.

Drop audio files to merge

or click to choose from your device (up to 20 files)

Choose Audio Files

Questions

Frequently asked questions

Is the audio merger free?

Yes. It is completely free, with no sign-up and no limits.

Are my audio files uploaded to a server?

No. Your audio is decoded, combined, and re-encoded entirely in your browser. The files never leave your device.

Can I merge files with different sample rates?

Yes. Files with different sample rates are automatically resampled to a common rate before merging, so they play back correctly as one track.

What output formats are supported?

You can export the merged audio as a WAV file (lossless, larger) or an MP3 file (compressed, smaller).