Free Online Audio Reverser

Play your track backwards, sample by sample.

Free to use on Mac, Windows, and mobileNo installation requiredTLS encryption keeps your files safe

What is this tool

AudioToolKit reverses audio online for free, in your browser. The entire file is flipped sample by sample so it plays backwards, with the pitch contour intact — no chipmunk effect, just the sample order reversed. It is a fast way to build intros, transitions and sound-design textures. Export the reversed track as MP3 or WAV without uploading it to a server.

Drag and drop your files here

MP3, WAV, M4A, AAC, OGG, FLAC, AIFF, AIF, OPUS, WMA, AMR — up to 25 MB per file

Output format

Output

Reversed MP3 or WAV

Accepted formats

.mp3, .wav, .m4a, .aac, .ogg, .flac, .aiff, .aif, .opus, .wma, .amr

Why use this free tool

Reversed audio is a staple of intro builds, transitions and sound design. The reverser flips the entire file — no pitch tricks, just the samples in reverse order.

How does the free reverse audio work?

1
Upload the track.
2
Press Process.
3
Download the reversed file.

Frequently asked questions

Does it change pitch?

No. Reversing keeps the pitch contour intact; it is the sample order that flips.

Works on video?

Audio files only. Extract the track with Video to MP3 first if you need to reverse a video's sound.

Is it local processing?

Yes, entirely in your browser.