Free three-band upward/downward multiband compressor originally from Ableton's Multiband Dynamics preset.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported
Checked September 2026 · 7 picks
Best Mastering Tools for Windows (2026)
The best mastering tools for Windows are OTT, FabFilter Pro-L 2 and FabFilter Pro-R 2. OTT is best for aggressive multiband upward/downward compression (Free). FabFilter Pro-L 2 is best for transparent, loud mastering-grade limiting ($199 one-time). FabFilter Pro-R 2 is best for natural mastering and mix reverb with musical, non-technical controls ($199 one-time).
Loudness limiter with eight limiting algorithms and true peak limiting for mastering.
VST3supportedAUsupportedAAXsupportedCLAPsupportedWINsupportedMACsupportedLNXnot supportedAlgorithmic reverb with musical Brightness/Character/Distance controls and Decay Rate EQ.
VST3supportedAUsupportedAAXsupportedCLAPsupportedWINsupportedMACsupportedLNXnot supportedAI-assisted mastering suite with 20 modules for finishing and polishing full mixes.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supportedAll-in-one mastering plugin with 14 pro modules and AI-powered mastering assistant.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supportedFree wideband mastering compressor combining high fidelity control with musical flexibility.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supportedFree mixing/mastering EQ with four vintage-modeled EQ character options.
VST3supportedAUsupportedAAXsupportedCLAPnot supportedWINsupportedMACsupportedLNXnot supported
Questions people ask
OTT by Xfer Records. It is best for aggressive multiband upward/downward compression and costs Free.