chevron_right

Frequency Analyzer

Real-time audio frequency analyzer for your microphone. Visualize the spectrum live with FFT in your browser.

Ahnliche Tools

Voice Recorder

Record audio directly from your microphone in the browser. Download as WebM/Opus or M4A. Fully private, no upload required.

Tone Generator

Generate sine, square, sawtooth, and triangle audio tones from 20 Hz to 20 kHz directly in your browser. Adjustable volume.

Audio Waveform Viewer

Visualize the waveform of any audio file in your browser. View duration, sample rate, channels, and play back inline.

Audio Ein- und Ausblenden

Fuege jedem Audiofile im Browser sanfte Ein- und Ausblendungen hinzu.

PDF-Metadaten bearbeiten

Zeige und bearbeite PDF-Metadaten wie Titel, Autor, Betreff, Schlüsselwörter und Ersteller.

SVG zu PNG

SVG-Dateien im Browser in PNG-Bilder beliebiger Größe umwandeln.

Kalenderwochen-Rechner

Ermitteln Sie ISO-8601-Kalenderwoche, US-Woche, Tag des Jahres und verbleibende Tage für jedes Datum.

apps

Mehr Tools

Durchsuchen Sie unsere vollstandige Sammlung kostenloser Online-Tools.

Frequency Analyzer

Real-time audio frequency spectrum analyzer running entirely in your browser. Uses the Web Audio API's AnalyserNode with a Fast Fourier Transform to visualize the frequencies present in your microphone input.

Features

Live microphone capture
2048-bin FFT spectrum
Color-coded frequency bars
60 FPS visualization
Fully private — audio never leaves your device

Use cases

Audio engineering and mixing
Musical instrument tuning
Vocal range analysis
Room acoustics inspection
Education about sound and signal processing