rfxgen
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A simple and easy-to-use fx sounds generator
rFXGen
A simple and easy-to-use fx sounds generator, based on the amazing Dr.Petter's sfxr.
rFXGen can be used for free as a WebAssembly online tool and it can also be downloaded as a standalone tool for Windows and Linux with some extra features. Binaries for other OSs are not released but they can be compiled from sources.
rFXGen Features
- Predefined sound presets (Coin, Shoot, Explosion, PowerUp...)
- Multiple wave types supported (Square, Sawtooth, Sine, Noise)
- Up to 4 save slots to store generated sound (temporary save)
- Load
.rfxsounds or import.sfsfiles (compatible with sfxr) - Save
.rfxsounds with generation parameters (104 bytes only) - Export generated waves with configurable sample-rate and bits-per-sample
- Export to
.wav,.rawdata or.hcode file (byte array) - Five unique GUI styles: Light, Jungle, Candy, Lavanda and Cyber
- Completely free and open-source
rFXGen Standalone Additional Features
- Command-line support for
.rfx/.sfsto.wavbatch conversion - Command-line audio player for
.wav,.ogg,.mp3and.flac - Completely portable (single-file, no-dependencies)
rFXGen Screenshot

rFXGen Usage
Open the tools and use the buttons to generate random sounds. Use the sliders to customize sound parameters.
Sounds could be saved as .rfx (sound generation parameters) and also exported to .wav, .raw (samples data) and .h (byte array code file).
rFXGen Standalone comes with command-line support for batch conversion and audio playing. For usage help:
rfxgen.exe --help
rFXGen License
rFXGen source code is distributed as open source, licensed under an unmodified zlib/libpng license.
rFXGen binaries are completely free for anyone willing to compile it directly from source.
rFXGen Standalone desktop tool is distributed as freeware.
In any case, consider some donation to help the author keep working on software for games development.
Copyright (c) 2015-2022 raylib technologies (@raylibtech) / Ramon Santamaria (@raysan5)