Reverse audio online for free

Upload your audio and get it back playing in reverse.

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🔒 100% private: your files never leave your deviceUp to ~100 MB

How it works

1

Upload your audio

Any common audio format.

2

Click Reverse audio

No settings needed.

3

Download

Your reversed audio in MP3.

How to play an audio file backwards

Upload an audio file, click Reverse audio and download the result. There are no settings. The tool reverses the whole file from the end to the start, so the last sound becomes the first. It accepts common audio formats, up to about 100 MB, and the result always downloads as an MP3, whatever format you uploaded.

What is it used for? Backwards audio is a classic effect in music production and sound design: reversed cymbals and swells that build into a beat, eerie vocal effects, or creative transitions. Some people use it just for fun, to hear how a phrase sounds in reverse. It is also a quick way to listen for detail in a recording that you cannot hear going forwards.

Practical tips: because the tool reverses the entire file, trim the part you want first with the audio trimmer, which keeps the effect short and the file small. If the reversed sound is too quiet or uneven, even it out with the audio enhancer. To change how fast it plays, use the audio speed tool, and to join the reversed clip to others, use the audio merger.

This tool only works on audio files. It does not reverse the picture of a video. Reversing re-encodes the sound to MP3, so for the highest quality start from a good source file. Everything runs in your browser and your audio is never uploaded to a server. If you need a different output format, run the result through the audio format converter.

Frequently asked questions

Does it also reverse a video if I upload one?
No. This tool only accepts audio files and does not reverse the picture of a video.
What format do I get back?
The reversed audio downloads as an MP3, whatever format you uploaded.
Are there any settings?
No. Upload the file, click Reverse audio and download the result.
Can I reverse only part of a file?
Trim the part you want first with the audio trimmer, then reverse the trimmed clip.
How big can the file be?
Up to about 100 MB.
Is my audio uploaded anywhere?
No. Everything runs in your browser and the audio never leaves your device.

More tools

Video/audio engine: FFmpeg (LGPL/GPL). License info