Frequency Generator

FreqGen is a simple frequency generator for creating precise audio tones from 1 Hz to 22 kHz. Use it for quick speaker checks, audio experiments, and clean signal tests.

Use it for

Speaker testing: check bass and treble response

Water ejection: help vibrate water out of the speaker grille

Sound experiments: learn and visualize wave behavior

Focus or relaxation tones: explore comfortable frequencies

High-frequency signals: for attention cues (where audible)

Key features

Frequency slider + fine steps (1 / 10 / 100 Hz)

4 waveforms: sine, square, triangle, sawtooth

Quick presets and saved favorites

Real-time waveform visualizer

Light/Dark theme

Optional haptics, onboarding tour, and in-app how-to