Best Free Mastering Plugins 2025
The best free mastering VST plugins for polishing your mixes. From limiters to multiband processors.
Updated Apr 3, 2026
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TDR Kotelnikov Tokyo Dawn Records
A wideband dynamics processor with high fidelity dynamic range control.
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BUSTERse Analog Obsession
SSL-style bus compressor for gluing mixes together. Punchy, tight dynamics processing with analog character.
compressoranalogmixingmastering - 3
MAnalyzer MeldaProduction
Professional spectrum analyzer and sonogram with multiple display modes. Essential metering tool.
mixingmastering - 4
Airwindows Pressure Airwindows
Unique compressor with an organic, analog feel. Adds glue and presence to bus and master channels.
compressormixingmastering - 5
Airwindows NC-17 Airwindows
Aggressive clipper and loudness maximizer. Adds harmonic density and loudness with minimal pumping.
limiterdistortionmastering - 6
SLAX Sonic Anomaly
Lookahead brickwall limiter for mastering. Transparent loudness maximization with minimal distortion.
limitermastering - 7
Luftikus lkjb
Analog-modeled semi-parametric EQ with Maag-style air band. Adds sparkle and presence to any source.
eqanalogmixingmastering - 8
Youlean Loudness Meter Youlean
Professional loudness metering compliant with EBU R128, ITU-R BS.1770, and ATSC A/85 standards. Essential for mastering.
masteringmixing - 9
Airwindows Consolidated Airwindows
Massive collection of hundreds of audio plugins in one package. Covers every effect category from EQ to reverb to dynamics.
mixingmasteringopen-source - 10
LOVEND Analog Obsession
Low-end enhancement and sub-bass processor. Adds weight and body to bass, kicks, and full mixes.
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Why Use Free mastering Plugins?
Free mastering plugins have come a long way. Many rival their paid counterparts in sound quality and features. Rankings are based on community votes - score equals upvotes minus downvotes.