FeenstaubTC: A Free Variable-Mu Compressor With Tape Color
FeenstaubTC is a free Windows VST/VST3 Variable-Mu compressor combining tube dynamics, tape saturation, transformer color and Headroom control.
Rivet: A Free FET Compressor With Five Analog Personalities
Rivet: A Free FET Compressor With Five Analog Personalities Five compressor revisions, harmonic drive, advanced sidechain control and up to 8x oversampling inside one completely free plugin. Rivet by GANUE Audio is a free FET-style compressor built around an unusual concept: instead of modelling one specific compressor revision, it places five different personalities inside the same plugin. The workflow remains intentionally hardware-inspired. There is no traditional threshold control. You push the signal into the compressor using the Input control, then compensate with Output. The harder the signal hits the circuit, the stronger the compression and harmonic character become. For producers…
G-Bus Compressor: A Free SSL-Style Bus Compressor VST
G-Bus Compressor: A Free SSL-Style Bus Compressor VST Stereo-linked compression, sidechain filtering, transformer-style drive and 2x oversampling for drums, buses and full mixes. Studio9 Plugins has released G-Bus Compressor, a free stereo bus compressor inspired by the classic SSL 4000 G-series compression workflow. The plugin is designed to add cohesion, punch and density to drum buses, instrument groups and complete mixes while keeping the workflow simple. It is available completely free, with no license manager, serial number or account registration required. G-Bus Compressor at a Glance Free stereo bus compressor SSL 4000 G-style compression concept True stereo-linked RMS…
KrystalComp: A Free Precision Compressor VST
KrystalComp: A Free Precision Compressor VST RMS and Peak detection, sidechain EQ, parallel compression, automatic loudness matching and detailed visual metering in a completely free dynamics processor. KrystalComp is a free digital compressor developed by Krystal Dynamics for mixing, mastering and detailed dynamics control. The plugin combines traditional compressor controls with several features normally associated with more advanced commercial processors, including RMS and Peak detection, variable knee, a Hold parameter, internal and external sidechaining and a dedicated sidechain EQ. KrystalComp also provides automatic loudness matching, real-time waveform visualisation, parallel compression and up to 4x oversampling. Completely free: Krystal Dynamics provides…
APD Compressor: A Free Adaptive Vocal Compressor VST
APD Compressor: A Free Adaptive Vocal Compressor VST Program-dependent compression, harmonic texture and a focused workflow for clearer, more controlled vocal mixes. APD Compressor is a free vocal compression plugin developed by Fabio “Shadaloo” Caterino of Shadaloo Audio DSP. Released in August 2026, it combines program-dependent dynamics processing with an optional harmonic texture stage inside a direct and accessible interface. The plugin is designed primarily for vocals, although it can also be tested on instruments, drum rooms, basses and other sources that benefit from controlled dynamics and added density. APD Compressor is available through a pay-what-you-want system. Producers can enter…
Multi-Comp: Eight Free Compressors Inside One Powerful Plugin
Free Compressor Plugin Multi-Comp: Eight Free Compressors Inside One Powerful Plugin Optical leveling, aggressive FET compression, console-style glue, transparent control and four-band processing in one open-source dynamics tool. Multi-Comp is a free multi-mode compressor developed by Dusk Audio for mixing, recording, mastering and creative dynamics processing. Instead of recreating only one compressor design, the plugin provides eight distinct modes. Producers can move from smooth optical leveling to aggressive FET limiting, punchy VCA compression, transparent digital control or detailed four-band processing without loading a different plugin for every task. The current version is Multi-Comp 1.3.4. It is completely free, open source…
Polarity SC: A Free Spectral Compressor for Precise Mixing
Free Spectral Processing Plugin Control resonances, create frequency-selective sidechain ducking and capture custom spectral curves with a modern open-source processor. Polarity SC is a free spectral compressor and suppressor developed by Polarity. Released in April 2026, it processes audio across thousands of narrow frequency bins instead of dividing the signal into only a few conventional multiband sections. The current version, Polarity SC 0.5.4, adds threshold curve presets, custom curve management and spectrum-based curve matching. It is available for Windows, macOS and Linux in VST3 and CLAP formats. No account, e-mail address, subscription, telemetry service or external licence manager is required.…
Body by Playfair Audio: Free Dynamics Plugin
Body is a free dynamics plugin developed by Playfair Audio for producers and engineers who want to add weight, density and presence without configuring a conventional compressor. Released in 2025, it uses the same core DSP engine and Source Learn technology as Playfair Audio’s commercial Dynamic Grading processor, but presents the concept through a deliberately simplified interface. Body is free to use permanently and has no copy protection. Producers must subscribe to the Playfair Audio newsletter with a valid email address, after which the macOS and Windows download links are delivered automatically. It is a complete plugin rather than a…
Little Duck: Free Tempo-Synced Ducker VST for 2026
Little Duck is a free tempo-synchronized ducking plugin released by Snorkel Audio in 2026. It creates the familiar pumping effect associated with sidechain compression without requiring a kick drum, sidechain input or additional routing. The plugin locks directly to the host tempo and provides a compact set of controls for shaping the volume movement. Little Duck is available as a VST3 plugin for Windows, as VST3 and Audio Unit versions for macOS, and as an AUv3 effect for iPad. What Is Little Duck? Little Duck is a volume-shaping effect designed to reproduce sidechain-style movement without listening to another audio track.…
