This is a very simple soundboard app that runs in your browser. You can use whatever sounds you want.
To use it, put the audio files in the same folder as the HTML file. Make sure they're called sound0.wav, sound1.wav, sound2.wav, etc.
The files can be in WAV, MP3, or FLAC format (only tested with WAV).
To play a sound, press one of the number keys. You can also click one of the number buttons on the screen. The sound that gets played depends on the filename. When you press a number key, the audio file sound# is played (with # replaced with the number key that you pressed).