Audio Frequency & Tone Generator

Professional-grade tone generation with real-time visualization, ADSR envelope control, and WAV export. Free, simple, and open.

440 Hz
440Hz
A4
🎛 Controls
Frequency 440 Hz
1 Hz 1 kHz 20 kHz
Volume 50%
Balance Center
Left Center Right
〰 Waveform & Noise
Standard Waves
Color Noise
📐 Envelope (ADSR)
0.05s
0.10s
0.80
0.15s
💾 Export & Share
⚡ Quick Presets
💾 Custom Presets

No custom presets saved yet.

🎵 Piano Keyboard
4
🎧

Binaural Beats Studio

Independent left & right ear frequency control for brainwave entrainment

🔊 Left Ear 200 Hz
20 Hz 500 Hz 1500 Hz
10
Hz Beat
Alpha (8–13 Hz)
Relaxation, calm focus
🔊 Right Ear 210 Hz
20 Hz 500 Hz 1500 Hz
🧠 Brainwave Entrainment Presets

Select a target state to tune left and right ear frequencies. Binaural beats stimulate specific brainwave frequencies to enhance your focus, relaxation, or sleep.

Delta State 2.0 Hz
Deep Sleep & Physical Recovery

Promotes dreamless sleep, somatic release, growth hormone production, and physical healing.

Theta State 6.0 Hz
Deep Meditation & Creativity

Linked to subconscious processing, dreaming, memory consolidation, and deep relaxation.

Alpha State 10.0 Hz
Relaxation & Calm Focus

Ideal for light meditation, stress relief, rapid learning, and relaxed awareness.

Beta State 20.0 Hz
Active Focus & Problem Solving

Engages logic, critical thinking, alert problem solving, analytical tasks, and high attention.

Gamma State 40.0 Hz
Peak Cognition & Recall

Associated with high-level informational synthesis, cognitive enhancement, and memory recall.

Healing Beat 6.0 Hz
Emotional Balance

Promotes emotional harmony, somatic tension release, and accelerated recovery.

🎛 Controls & Export
Volume 50%
Sleep Timer
Export Binaural Audio (WAV)

🎧 Use headphones for best results

ℹ️ About AudioForge

AudioForge is a free, professional-grade online tone generator built with the Web Audio API. Generate precise audio frequencies from 20 Hz to 20 kHz with four waveform types, real-time oscilloscope and spectrum visualization, ADSR envelope shaping, and high-quality WAV export.

Common uses: Speaker & subwoofer testing, instrument tuning, hearing tests, tinnitus frequency matching, audio equipment calibration, science experiments, acoustic research, sound therapy, and binaural beat creation.

Keyboard shortcuts: Press ? to view all shortcuts. Use Space to play/stop, arrow keys to adjust frequency & volume, [ ] for octave jumps, and 1-4 to switch waveforms.

⚠️
Safety Notice: Always start with low volume. Prolonged exposure to extreme frequencies at high volumes can damage your hearing and speakers. Keep volume comfortable at 1 kHz before exploring other frequencies.

Enter frequency in Hz · Press Enter to apply

⌨️ Keyboard Shortcuts

Play / Stop Space
Frequency ± 10 Hz
Frequency ± 1 Hz Shift +
Frequency ± 0.01 Hz Ctrl +
Frequency ± 0.001 Hz Ctrl + Shift +
Volume ± 5%
Octave Down / Up [ ]
Sine / Square / Saw / Tri 1 2 3 4
Type exact frequency Click frequency display
Show / Hide Shortcuts ?