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.…
Relief Compressor: Free Open-Source VST3 for Mixing
Relief Compressor is a free and open-source dynamics plugin developed by Kiriki-liszt for everyday mixing and master bus processing. It combines flexible detector modes, detailed sidechain filtering and smooth lookahead compression inside a clear interface. Available in VST3 and AU formats for Windows and macOS, Relief Compressor remains a useful free mixing tool in 2026. It requires no subscription, license manager or paid upgrade to unlock its main features. Main Features Free and open-source compressor 64-bit double-precision internal processing Peak and RMS detector modes Linear and logarithmic detection options Optional Hilbert detector Fixed 0.5 ms lookahead Two-band sidechain EQ Selectable…
ZL Compressor: A Free Open-Source Dynamics Plugin for Modern Mixing
ZL Compressor is a free open-source dynamics processor designed for producers and mixing engineers who need more than conventional downward compression. Updated to version 0.5.0 in May 2026, it combines four processing directions, several compressor characters, detailed sidechain control and extensive visual feedback inside a resizable interface. The plugin can handle transparent peak control, vocal leveling, drum-bus glue, upward compression, expansion and more experimental dynamic shaping. Its combination of lookahead, RMS processing, parallel mixing, oversampling and stereo control makes it suitable for everyday mixing as well as more technical sound design. What Is ZL Compressor? ZL Compressor is a dynamic…
Valentine by Tote Bag Labs: A Free Compressor and Distortion VST3 Plugin for Crushed Textures
Valentine by Tote Bag Labs is a free VST plugin built for producers who want compression to do more than simply control dynamics. The open-source effect combines aggressive compression, saturation, bitcrushing and soft clipping inside a simple signal chain designed for pumping drums, crushed synths, distorted buses and heavily processed electronic textures. Valentine is available as a VST3 plugin for Windows and as VST3 and Audio Unit formats for macOS. What Is Valentine? Valentine is a nonlinear compressor and distortion processor inspired by the heavily compressed and crushed textures associated with aggressive electronic production. Its workflow is intentionally direct. Increasing…
MuChild by Analog Obsession: A Free Vintage Compressor VST Plugin for Mixing
MuChild by Analog Obsession is a free vintage compressor VST plugin designed for smooth dynamics control, musical saturation and classic Vari-Mu-style compression. Inspired by one of the most famous tube compressors in studio history, MuChild combines a simple vintage workflow with modern features including sidechain filtering, external sidechain support and parallel compression. Available for Windows and macOS, the plugin is particularly useful on vocals, bass, drums, strings, instrument buses and mix groups that need density and control without overly aggressive compression. What Is MuChild by Analog Obsession? MuChild is a free compressor plugin developed by Analog Obsession. Its design is…
Xfer Records OTT Free VST for Powerful Multiband Compression
Xfer Records OTT: A Free Multiband Compressor for Modern Production Aggressive upward and downward compression for brighter synths, denser drums, detailed vocals and more animated sound design. OTT by Xfer Records is one of the most recognisable free dynamics plugins in modern electronic music production. Its name refers to an “over the top” multiband compression preset that became popular for making sounds feel brighter, denser and more energetic. The plugin combines upward and downward compression across three frequency bands. Loud peaks are controlled while quieter details are pushed forward, revealing harmonics, ambience, sustain and texture that may have been difficult…
FirComp 2
The free “invisible” compressor that still hits hard If your mixes already sound good and you’re mainly fighting two enemies—peaks and lost punch—FirComp 2 is the kind of compressor that feels like cheating (the legal kind). Built by Jon V Audio, it’s a modern peak compressor / limiter designed to stay clean, fast, and musical, whether you’re tightening a vocal, controlling a bass, or gluing a drum bus without flattening the vibe. Official page + download (pay-what-you-want, including free): https://jonvaudio.gumroad.com/l/fircomp2 Developer site: https://jonvaudio.com/ Transparent compression that doesn’t kill the front edge FirComp 2’s personality is all about clarity. It grabs…
