Product
Why web recording is broken
Most browser-based recorders treat audio as an afterthought. They lose takes, cap file sizes, and phone home with your data. We think the bar is on the floor.
3 min readRead more →
effect
Reverse Audio Online
Reverse any audio file instantly in your browser. Free, private, runs in your browser.
How it works
01
Drop your audio file or click to upload. MP3, WAV, OGG, and most formats work.
02
Your audio is decoded in the browser and reversed instantly. Nothing leaves your device.
03
Preview the reversed audio, then download as WAV.
No file uploadNo signupNo ads100% browser-based
Frequently asked questions
How do I reverse an audio file online?
Drop your audio file onto this page or click to upload. The tool decodes it in your browser, reverses every sample, and gives you a playback preview. Click download to save the reversed version as a WAV file. The entire process takes seconds.
Can I reverse an MP3 file without installing software?
Yes. This tool works entirely in your browser. No software to install, no account to create. It handles MP3, WAV, OGG, FLAC, M4A, AAC, and any other format your browser supports.
Does reversing audio upload my file to a server?
No. All processing happens locally on your device using the Web Audio API. Your audio file never leaves your browser. Nothing is uploaded, stored, or transmitted.
Is there a file size limit for reversing audio?
No hard limit. Processing happens in your browser's memory, so files up to several hundred MB work fine on modern devices. For very large files (over 500 MB), performance depends on your device.
Can I reverse audio on my phone?
Yes. This tool works in any modern mobile browser including Safari on iPhone and Chrome on Android. No app download needed.
What format is the reversed audio saved in?
The reversed audio downloads as a lossless WAV file at the same sample rate and channel count as your original. WAV preserves full quality with no compression artifacts.
Can I play audio backwards to find hidden messages?
Yes. Upload any audio file, and the tool instantly reverses it so you can listen to it backwards. This is commonly called backmasking and has been used in music for decades.
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