Audio can be uploaded in a vast number of file formats. See our separate FAQ to read more about them.
We are big fans of the following audio editors. There are quite literally hundreds available and many are free, but these are the ones we've taken a liking to the most. We recommend uploading Audio in MP3 format where possible and you'll find a few more features on the "Audio" page if your files arrive with us in this format.
For Mac, Windows & Linux
Audacity Recorder and Editor: Very powerful, feature-rich and free full audio editor for your desktop. Allows export in MP3 format (Preferred). Lots of tutorials can easily be found on how to use, but easy to get to grips with for simple functions right after installation. Extremely powerful once you dig deeper.
For iOS (App)
Voice Record Pro: Free, feature-rich voice recorder that allows easy export of an audio file in multiple formats, including MP3 (Preferred) via email, cloud storage and other methods. Also allows basic editing, including trimming and joining two clips together amongst many other features.
For Android (App)
Hi-Q MP3 Recorder: Free, very straightforward MP3 recorder (Preferred) that allows you to choose a sample rate of MP3 Recording for the very smallest file size. Free version limited to 10 minutes of recording per file and easy export via email or cloud storage with built-in Android "share" features.