FFT Spectrum Analyzer

Analyze real sampled data or switch to a separate synthetic test signal.

Input sourceCSV file

CSV format · Maximum size 10 MB

Sampling rate (Hz)

Use the actual sampling rate of your recorded data. Time columns are not automatically converted into a sampling rate.

Window function

Single-sided amplitude spectrum

Frequency axis extends from 0 Hz to Nyquist frequency.

Interpretation note: FFT peaks depend on sampling rate, record length, window choice, and signal quality. This tool does not diagnose machine faults by itself.