8-Bit SFX Generator sfxr-style synth · WAV export

Roll coins, lasers, explosions and jumps in one click, then tweak 24 synth parameters by hand. Renders offline with an 8× oversampled retro synth core — no server, no libraries.

Generators

Waveform

Square + duty sweep is the classic NES lead. Noise makes drums & explosions.

Library

Stored in this browser's localStorage.

Parameters

Output

Duration–

Samples–

Peak–

auto-play on change

Export

File name

Sample rate

Bit depth

A link carries the full preset in the URL hash — paste it anywhere to reopen the exact sound.