Real-time FFT frequency bars, oscilloscope waveforms, and radial spectrum analyzer with zero audio upload.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Select Synth Tone, Live Mic, or upload an audio file (MP3, WAV, AAC).
Switch between Frequency Bars, Oscilloscope Waveform, Radial Spectrum, or Matrix Waterfall.
Adjust bar count and smoothing responsiveness, then download a high-resolution PNG snapshot.
It connects the audio signal to an AnalyserNode within the native Web Audio API, extracting real-time Fast Fourier Transform (FFT) frequency and time-domain data directly onto an HTML5 Canvas.
No! All audio decoding, playback, and canvas rendering operate 100% locally in your browser memory with zero network egress.
Yes, switch to Oscilloscope Wave mode and use the Synth Tone source to inspect continuous waveforms.
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