Blue Cat's FreqAnalyst

6.9easy start · #9 of 42
in Audio Analysis Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on Mac, Windows.

Blue Cat's FreqAnalyst is ranked #9 of 42 in audio analysis software on The Geeks Club. It runs on macOS, Windows. There is a free plan.

Blue Cat's FreqAnalyst plans and pricing

All plans

FreqAnalyst Free Freeware · real-time spectrum analyzer plug-in bluecataudio.com · 8 Oct 2026

Compared on audio analysis software

Free plan: Yes
Real-time analysis: Yes
Maximum channels: 2 channels
Plugin support: vst
Analysis views: spectrum, instant curve, peak curve

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The record

Purpose: FreqAnalyst is a free plug-in for monitoring an audio signal’s spectral content in real time.
Analysis: It analyzes mono and stereo audio and displays continuous spectral changes using a smooth interpolation algorithm.
Display controls: The display can be zoomed, shown in multiple sizes, and configured with custom absolute and relative thresholds.
Customization: The interface supports Blue Cat’s skinning language, transparency, and zoom customization.
MIDI and automation: The plug-in supports MIDI control, automation, and MIDI Learn.
Presets: It includes a preset manager and lets users copy and paste plug-in state between instances.
Formats: The product page lists VST, VST3, AAX, and Audio Unit formats for Mac and Windows.
Host requirements: It requires a compatible VST, Audio Unit, or AAX host; Mac hosts must be 64-bit, while Windows hosts may be 32- or 64-bit.
Operating systems: The listed requirements are macOS 10.9 or newer and Windows Vista, 7, 8, 10, or 11.
Processor support: The Mac version supports Intel or Apple Silicon processors, and the Windows version requires an SSE2-enabled processor such as Pentium 4 or newer.
Performance: The plug-in shuts down processing when fed silence, so it uses no CPU while idle according to the maker.
Security: The maker says its Mac installers and plug-ins have been notarized to avoid security warnings on macOS Catalina and newer.
Support: Blue Cat Audio provides a knowledge base, help desk, forum, and tutorials for product support.
Company: Blue Cat Audio develops audio software for musicians and audio professionals and is a privately held company based in Paris, France.
Price from: Free

Where it ranks on The Geeks Club

Best Audio Analysis Software in 2026#9 of 42
Best Audio Plugins in 2026#5 of 39
Best Guitar Amp Software in 2026#11 of 25

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Sources

bluecataudio.com/Products/Product_FreqAnalyst/· checked 8 Oct 2026
bluecataudio.com/Support/Home/· checked 8 Oct 2026
bluecataudio.com/Company/Home/· checked 8 Oct 2026