Instruments, effects, and hidden gems

Free plugins: Effects

Browse 1008 reviewed free effect plugins for Windows, with compatibility and installation details.

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Multi Peak Limiter plugin interface
Yuri Semenov

Multi Peak Limiter

Multi Peak Limiter by Yuri Semenov is a versatile 3-band peak limiter that operates in LR_MS modes, ideal for mastering tasks.

VST2Mastering
Master Tone PRO plugin interface
Yuri Semenov

Master Tone PRO

Master Tone PRO by Yuri Semenov is a mastering strip plugin available in VST2 format for Windows and macOS.

VST2Mastering
LVC-Meter plugin interface
LVC-Audio

LVC-Meter

LVC-Meter is a free VST2 plugin offering true-peak metering with spectrum analysis, stereo vectorscope, and waveform history views for accurate mastering measurements.

VST2Mastering
KlipFreak plugin interface
Audio Assault

KlipFreak

KlipFreak by Audio Assault is a free peak clipper plugin designed for mastering purposes, available for both 32-bit and 64-bit Windows systems.

VST2Mastering
Isol8 plugin interface
TBProAudio

Isol8

Isol8 by TBProAudio is an advanced mix monitoring tool that splits audio into five frequency bands, allowing precise soloing or muting to focus on specific ranges during mixing and mastering.

VST2Mastering
Initial Clipper plugin interface
Initial Audio

Initial Clipper

Initial Clipper by Initial Audio is a soft clipper plugin that smooths audio peaks to prevent signals from exceeding zero decibels, ideal for mastering.

VST2Mastering
Impulses plugin interface
Blue Lab Audio

Impulses

Impulses by Blue Lab Audio is a free IR processor that captures and applies the acoustic characteristics of spaces using impulse responses to enhance vocals or instruments.

VST2Mastering
GClip plugin interface
GVST

GClip

GClip by GVST is a wave-shaping clipper plugin that prevents audio signals from exceeding a set maximum. It offers adjustable hard- or soft-knee clipping with gain, clip, and softness controls, plus a visual graph and wave display. Supports 2x oversampling for enhanced audio quality.

VST2Mastering
Fletchy-Muncher plugin interface
Noisebud

Fletchy-Muncher

Fletchy-Muncher by Noisebud applies loudness playback adjustments based on the Fletcher-Munson curve to detect harshness or brightness at high volumes.

VST2Mastering
dpMeter 5 plugin interface
TBProAudio

dpMeter 5

dpMeter 5 by TBProAudio is a free, precise, multichannel digital audio meter supporting RMS, EBUR128, and TruePeak measurement for mastering.

VST2Mastering
dpMeter plugin interface
TBProAudio

dpMeter

dpMeter by TBProAudio is a precise digital audio multi-channel meter offering RMS, EBUR128, and TruePeak measurement modes with support for up to 5.1 surround.

VST2Mastering
Denoiser plugin interface
Blue Lab Audio

Denoiser

Denoiser by Blue Lab Audio is a noise removal plugin that reduces or removes background noise by analyzing and separating noise from the signal in the spectral domain.

VST2Mastering
Correlometer plugin interface
Voxengo

Correlometer

Correlometer by Voxengo is an analog-style stereo multi-band correlation meter designed to detect phase issues in audio mixes.

VST2Mastering
Chroma plugin interface
Blue Lab Audio

Chroma

Chroma is a free chromagram visualization plugin by Blue Lab Audio that helps identify musical notes and chords for transcription and analysis.

VST2Mastering
Cheap RTA plugin interface
reFuse Software

Cheap RTA

Cheap RTA is a 1/3 octave real-time analyzer with a classic 30-band display and 4dB per LED resolution. It supports mono and stereo tracks, summing stereo signals to mono for frequency analysis.

VST2Mastering
Bertom EQ Curve Analyzer plugin interface
Bertom

Bertom EQ Curve Analyzer

Bertom EQ Curve Analyzer is a free analyzer and signal generator plugin designed to visualize the frequency and phase response of any audio plugin or hardware.

VST2Mastering
Bertom Denoiser plugin interface
Bertom

Bertom Denoiser

Bertom Denoiser is a lightweight noise reduction plugin for music and post-production, featuring a simple interface and low CPU usage.

VST2Mastering
Beeper plugin interface
Voxengo

Beeper

Beeper by Voxengo is an auxiliary audio processing plugin that inserts short beep, noise burst, or silence signals into sound material to help protect your work from theft safely.

VST2Mastering
The free-plugin pulseUpdated Aug 25, 2026

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