How to open SD2 files

Did your computer fail to open a SD2 file? We explain what SD2 files are and recommend software that we know can open or convert your files.

What is a SD2 file?

SD2 files are Sound Designer II audio files, which you can read more about below.

The SD2 file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a SD2 opener may not be able to open all kinds of SD2 files. In this case, though, we only know of one specific use.

Sound Designer II audio

Through our analysis of SD2 files, we know that one use of the format is Sound Designer II audio. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

SD2 file openers, viewers, etc.

These apps are known to open certain types of SD2 files. Remember, different programs may use SD2 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

WavePad Sound EditorWavePad Sound EditorUser submitted
WavePad Audio-EditorWavePad Audio-EditorUser submitted
QuickTimeQuickTimeUser submitted
WinampWinampUser submitted
QuickTime AlternativeQuickTime AlternativeUser submitted
MixPad Multitrack Recording SoftwareMixPad Multitrack Recording SoftwareUser submitted
SAS Enterprise GuideSAS Enterprise GuideUser submitted
Storm CodecStorm CodecUser submitted
2012 Lacerte Tax2012 Lacerte TaxUser submitted
QT LiteQT LiteUser submitted
We have not verified any programs that we know for certain can work with SD2-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with SD2-files. If you know one, please use the Suggest link below and tell us about it!