Online Spectrum Analyzer

Inspect the audio playing in the current tab with a live spectrum and spectrogram.

Online Spectrum Analyzer adds a focused audio-analysis panel beside the webpage you are listening to. Open a normal Chrome tab with audible media, select the extension, and start capture. The tab remains audible while the extension analyzes its signal locally on your device. FEATURES • Live frequency spectrum • Scrolling spectrogram • Peak frequency and peak level • RMS level and crest factor • Five strongest frequency peaks • Adjustable FFT size and smoothing • Freeze display and peak hold • Quick access to the full file analyzer PRIVATE BY DESIGN Tab audio is captured only after you invoke the extension and select Start capture. Audio and derived measurements are processed temporarily inside the extension. They are not uploaded, stored, sold, or used for advertising. The extension is designed for quick inspection of music, videos, reference tracks, streams, and other audible media playing in a Chrome tab. For uploaded-file analysis, timestamped diagnostics, loudness measurements, PDF reports, and high-resolution exports, open the full Online Spectrum Analyzer website from the extension.