You can also convert files by email with Zamzar by attaching the file (1 MB max for free users) to a message and sending it to a special email address. It can be used with pretty much any modern web browser on any OS, such as Windows, macOS, and Linux. Unless you choose to get an email, you can wait on the download page for the button to appear so that you can download the converted file right away. However, fortunately, you don't have to wait for an email to get the download link. Zamzar's conversion time is sometimes slow compared to other online audio converter services. Output Formats: AAC, AC3, FLAC, M4A, M4R, MP3, MP4, OGG, WAV, and WMA.Input Formats: 3GA, AAC, AC3, AIFC, AIFF, AMR, APE, CAF, FLAC, M4A, M4B, M4R, MIDI, MP3, OGA, OGG, RA, RAM, WAV, and WMA.To get started, just upload the files you want to convert. Like any online file converter, it's super easy to use. I like that it's way more than just an audio converter, but even in this context, I appreciate that it works through my browser and that I can easily import files from my favorite cloud storage services. Zamzar has always been a favorite of mine.