MeterPlugs is a Canadian audio software developer based in Victoria, British Columbia, founded in 2009 by Ian Kerr. The company focuses exclusively on metering and analysis plug-ins for mixing and mastering engineers, positioning itself as a counter to the loudness war by giving engineers tools to preserve dynamic range. Its design philosophy draws on Bob Katz's K-System approach to monitoring and gain staging.

The MeterPlugs catalog includes Dynameter, a dynamics meter aimed at tracking punch and macrodynamics; Perception AB, an A/B referencing and level-matching utility; Loudness Penalty and Loudness Penalty Studio, which estimate the loudness normalization applied by streaming services like Spotify, Apple Music, YouTube and Tidal; and legacy tools K-Meter and LCAST for K-System and broadcast loudness metering. The plug-ins are distributed in AAX, AU, VST and VST3 formats for Pro Tools, Logic, Cubase and other common DAWs.

The company produces no hardware or effects processors — its output is limited to measurement and reference tools intended to sit alongside other plug-ins in a mix or mastering chain.

MeterPlugs has 6 products cataloged on Equipboard, including Metering Plugins and Spectral Analysis Plugins.