Audio Reverse Tool
Reverse any audio file to play backwards in your browser.
Drop your Audio file (short clips recommended) here
or click to browse · max 500 MB
Audio reverse loads the entire file into memory. Use short clips only (under 5 minutes recommended).
Settings
128k for speech · 192k for general use · 320k for music
FFmpeg WASM (~25MB) will be downloaded on first use and cached by your browser.
Audio Reverse
Reverses audio playback so the file plays backwards. Creates creative effects, reveals hidden messages, or produces unique soundscapes from existing audio. Uses FFmpeg WASM's areverse filter for high-quality reversed output.
What is it used for?
- Creating reverse audio effects for music production
- Listening to audio backwards for creative purposes
- Generating unique sound effects from existing recordings
- Reversing speech for artistic or educational purposes
- Creating ambient soundscapes with reversed instruments
Step-by-Step Guide
- Click the upload area or drag and drop your audio file
- Click 'Convert to .MP3' to reverse the audio
- Preview the reversed result in the built-in player
- Click Download to save the reversed MP3
How it works
Upload an audio file and click Convert. FFmpeg WASM loads the entire audio into memory and reverses the sample order using the areverse filter. The result is encoded as MP3.
Tips & Best Practices
- Keep audio files short (under 5 minutes) for best performance
- Trim your audio first if you only need a section reversed
- Reversed reverb and cymbal crashes create popular sound effects
Frequently Asked Questions
Why is there a file length recommendation?
Audio reverse loads the entire file into memory before reversing. Short clips (under 5 minutes) work best. Longer files may cause memory issues in the browser.
Does reversing audio change the pitch?
Yes, reversed audio naturally plays at the same speed but with all frequencies reversed in time. It creates the characteristic 'backwards' sound.
Can I reverse a portion of the audio?
Use the Audio Trimmer first to cut the section you want, then reverse the trimmed clip.
Privacy & Security
This tool uses FFmpeg compiled to WebAssembly (WASM). The WASM binary (~25MB) is downloaded from a CDN on first use and cached by your browser. All file processing happens locally on your device - your files are never uploaded to any server. This makes it safe for sensitive, private, or confidential media files. Large files may take longer to process depending on your device's CPU and available memory.