Can I use the sounds commercially?

Yes. Every sound is synthesized from the parameters you set, with no sampled material involved, so the exported WAV is yours to use in commercial games, videos and apps without attribution.

How do I reproduce or share a sound?

Each preset click shows the random seed it used; tick Lock seed and the same preset with the same seed produces the identical sound. Easier still, copy the share link: all parameters are encoded after the # in the URL, so whoever opens it hears exactly the same effect, and nothing passes through a server.

Which bit depth and sample rate should I pick?

16-bit at 44.1 kHz is the safe default with the best compatibility and lowest noise. For a grittier retro feel or the smallest possible files, 8-bit at 22.05 kHz is a quarter of the size and is common in handheld-style and web games.

How does this relate to sfxr / jsfxr?

sfxr is Tomas Pettersson’s classic generator made for Ludum Dare, and jsfxr is its web port. This is an independent implementation of the same design (8× oversampled oscillator, resonant low-pass, high-pass, flanger and sweeps) with the same preset rules, so sfxr users will feel at home; it adds a triangle wave, seeds and link sharing.

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🕹️8-bit Sound Effect Generator - Retro Game SFX Online, WAV

Indie games, game jams and quick prototypes need lots of bleeps and bloops: coin pickups, laser shots, explosions, jumps, hits, power-ups and menu blips. This tool synthesizes them in real time in your browser using the classic sfxr approach. Click a preset to get a fresh sound, click again for another, or hit Mutate to nudge the current one. Every parameter is yours to tweak: five waveforms (square, sawtooth, sine, noise, triangle), a four-stage envelope with attack, sustain, punch and decay, start frequency with slide and delta slide, vibrato, arpeggio jumps, duty-cycle sweep, retrigger, flanger, and resonant low-pass plus high-pass filters. Each preset is driven by a random seed, so the same preset and seed always reproduce the same sound, and the parameters are written into the URL — copy the link and a teammate hears exactly what you hear. Export 8- or 16-bit WAV at 22.05 or 44.1 kHz and drop it straight into Unity, Godot, GameMaker or any engine; the sounds are free for commercial use.

Free · No sign-up · Runs in your browserLast updated: 2026-10-26

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How to use Game Sound Effect Generator

1Click a preset such as Pickup / coin, Laser or Explosion to generate and play a sound
2Click again for a new variation, use Mutate to fine-tune, or drag any parameter
3Choose bit depth and sample rate and download the WAV, or copy the share link; history keeps earlier sounds

FAQ

Can I use the sounds commercially?: Yes. Every sound is synthesized from the parameters you set, with no sampled material involved, so the exported WAV is yours to use in commercial games, videos and apps without attribution.
How do I reproduce or share a sound?: Each preset click shows the random seed it used; tick Lock seed and the same preset with the same seed produces the identical sound. Easier still, copy the share link: all parameters are encoded after the # in the URL, so whoever opens it hears exactly the same effect, and nothing passes through a server.
Which bit depth and sample rate should I pick?: 16-bit at 44.1 kHz is the safe default with the best compatibility and lowest noise. For a grittier retro feel or the smallest possible files, 8-bit at 22.05 kHz is a quarter of the size and is common in handheld-style and web games.
How does this relate to sfxr / jsfxr?: sfxr is Tomas Pettersson’s classic generator made for Ludum Dare, and jsfxr is its web port. This is an independent implementation of the same design (8× oversampled oscillator, resonant low-pass, high-pass, flanger and sweeps) with the same preset rules, so sfxr users will feel at home; it adds a triangle wave, seeds and link sharing.