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Tuning Fork

Strike a virtual tuning fork for accurate reference pitches when tuning instruments.

440.00 Hz
A4

Note:

Octave:

About Tuning Fork

Tuning Fork is a free browser-based audio tool that lets you strike a virtual tuning fork for accurate reference pitches when tuning instruments without installing any software. Musicians, podcasters, sound designers, and hobbyists use this tool for quick audio tasks directly in the browser. All audio processing happens locally using the Web Audio API — nothing is uploaded to any server.

How to Use

1
Load your audio Upload an audio file, record from your microphone, or use the built-in controls to get started.
2
Adjust settings Use the available controls to set parameters like frequency, tempo, volume, or effect type.
3
Listen and adjust Preview the audio output and fine-tune settings until you're satisfied with the result.
4
Save or export Download the audio output or copy any generated data for use in your project.
🔒 Privacy note: All processing happens locally in your browser. Your data is never sent to any server.

Why Use Tuning Fork?

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Browser-Based Audio Tuning Fork uses the Web Audio API for high-quality audio processing directly in your browser. No plugins, no downloads — just open and start.
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Your Audio Stays Private Audio files and recordings are processed locally on your device. Nothing is uploaded to any server or stored anywhere.
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Professional Features Get capabilities that traditionally required desktop software like Audacity or FL Studio, accessible instantly from any browser.
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Works on Any Device Fully responsive design and touch-friendly controls make it easy to use Tuning Fork on desktop, tablet, or smartphone.

Frequently Asked Questions

A physical tuning fork vibrates at a precise fixed frequency when struck. This tool simulates that by playing a pure sine wave at the selected pitch with a 3-second exponential decay, mimicking how a real fork's sound fades after being struck.
A4 = 440 Hz was internationally standardized in 1955. Before this, A4 ranged from 415 Hz to 466 Hz across different ensembles. Today, some orchestras use 442 Hz or 443 Hz for a slightly brighter sound.
For standard guitar tuning, use octave 4 for A (440 Hz), octave 3 for D (146.83 Hz) and G (196 Hz), octave 4 for B (246.94 Hz), and octave 4 for E (329.63 Hz). The low E string is E2 (82.41 Hz).