MP3 Cutter
Trim MP3 audio with waveform positioning and exact time fields.
Reverse Audio
Create a copy of a recording that plays from the end toward the beginning. Choose an output format and listen to the reversed result before downloading.
Audio and transcripts stay on your device. Processing runs in your browser.
Choose a file
MP3, WAV, M4A, OGG, FLAC. Up to 100 MiB per file (50 MiB on touch devices), 1800 seconds. Decoded audio memory limits also apply.
Settings
Bitrate applies to MP3 and AAC. WAV uses 16-bit PCM; FLAC is lossless. OGG uses quality-based encoding.
Result
Your result will appear here
Add a file, pick your settings, then select Reverse audio.
Your result will appear here.
TXT uses your edited text. SRT and VTT use the timed segments; edit segment text below for subtitle changes.
No account or daily usage quota. File and device limits protect your browser from running out of memory.
How to use Reverse Audio
- Choose a supported audio file.
- Select the output format, sample rate and channels.
- Press Reverse audio and keep the tab open while processing finishes.
- Play the result and download the backwards recording.
Reversing changes the order of time
The effect plays audio samples in reverse order. A spoken sentence becomes backwards speech, and sounds with a sharp attack can become rising swells. Reversing does not slow the recording down or shift its pitch.
The reversal filter needs the decoded recording in memory before it can output the first reversed sample. A long recording can therefore be more demanding than a simple format conversion. Start with a short clip on a phone.
Create a reverse transition
Trim a short sound, reverse it, and preview how it builds toward its ending. Keep WAV output when you need a PCM clip for further editing, or choose MP3 for a listening copy.
Use MP3 Cutter to isolate an MP3 section before reversing it. Audio Fade In/Out can soften either edge of the reversed output.
Before you download
- Long audio can run out of browser memory during reversal.
- Lossy export adds an encoding stage. Reversing twice does not undo compression loss.
- This effect does not isolate instruments, remove vocals or interpret backwards speech.
Frequently asked questions
Does reversing change the pitch?
The samples play in the opposite order at the selected output sample rate. The effect is reversal, not intentional pitch shifting.
Can I reverse only part of an MP3?
First trim the required section with MP3 Cutter, then reverse that clip.
Why does a long recording fail?
The reversal filter buffers decoded audio. Its memory requirement can be much larger than the compressed file size.
Can I recover the original by reversing again?
Reversing restores sample order, but any resampling or lossy compression from the exports remains. Keep the original recording.
Related tools
Often used together with Reverse Audio.
Audio Fade In/Out
Add independently timed fades to the start and end of an audio file.
Audio Converter
Convert between common audio formats with bitrate and channel controls.