rFXGen

rFXGen is a free, open-source sound effect generator, based on sfxr, that allows users to create and customize sound effects with multiple wave types, predefined sound presets, and configurable sample rates. The tool can be used as a WebAssembly online tool or downloaded as a standalone version for Windows and Linux, with the ability to export sound data as .wav, .qoa, .raw, or .h code files. Users can also temporarily save up to 5 sounds and load/save .rfx files with sound generation parameters.