Fade In/Out
Pitch Shift
Speed Changer
Volume Booster
Normalizer
Reverse Audio
Mono / Stereo
Audio Cutter

AudioChef

Free＆Simple Online Tools for Sounds


WEB application "AudioChef" is an online service that provides simple features for Sounds. Each features are easy to understand and easy to run.

You can use it without installation nor registration if only you have a browser.

Target OS: Windows/Mac/iOS/Android
Target Browsers: Chrome/Safari/Edge/Firefox/IE.

AudioChef Features List

Fade In & Fade Out Audio
Fade In & Fade Out Audio
Add a fade out or fade in to your MP3/M4A online, free. Set the fade length in seconds, convert, and download. No install, no sign-up.
Transpose Music (Change the Key by Semitones)
Transpose Music (Change the Key by Semitones)
Transpose music online for free. Shift the key of any MP3 or M4A song up or down in semitones, just like karaoke key control.
Audio Speed Changer
Audio Speed Changer
Change the playback speed of your MP3/M4A online, free. Speed up or slow down audio and music, then download. No install, no sign-up.
MP3 Volume Booster (Change Audio Volume)
MP3 Volume Booster (Change Audio Volume)
Boost or lower the volume of MP3 and M4A files online, free. Make quiet audio louder and download it in seconds. No installation or sign-up.
Audio Normalizer (Even Out Volume)
Audio Normalizer (Even Out Volume)
Free online audio normalizer. Even out loud and quiet parts so your MP3 or M4A plays at a consistent volume. No install, no sign-up.
Reverse Audio
Reverse Audio
Reverse any audio file online, free. Play music or sound backwards and download the result in seconds. No installation or sign-up.
Mono to Stereo & Stereo to Mono Converter
Mono to Stereo & Stereo to Mono Converter
Convert audio between mono and stereo online, free. Turn a mono file into stereo or a stereo file into mono, then download. No install, no sign-up.
Audio Cutter (Trim Audio)
Audio Cutter (Trim Audio)
Free online audio cutter. Trim or cut your MP3/M4A by entering start and end times in seconds, then download. No install, no sign-up.