MixMeister is a DJ software company founded by Aaron Higgins in Seattle, Washington, after he left his role as an audio technical evangelist at Microsoft. The company pioneered timeline-based mixing for DJ software, offering a non-linear digital audio workstation interface tailored for creating DJ sets, mixtapes, and radio shows. Higgins patented the beat detection algorithm that powered MixMeister's automatic BPM detection and beat-matching capabilities, which was granted in 2001.

The company's product line includes MixMeister Express for beginners and hobbyists, MixMeister Studio for precise timeline editing, MixMeister Fusion for professional DJs with live performance capabilities and VST plugin support, and the free MixMeister BPM Analyzer for detecting the tempo of audio files. MixMeister also found a significant niche among fitness instructors who needed custom mixes at specific tempos for workout classes. Numark, part of inMusic Brands, acquired MixMeister in 2007, and the software was subsequently distributed under the Numark umbrella. The software has since reached end-of-life status and is no longer receiving updates.

MixMeister has 2 products cataloged on Equipboard, including DJ Software. Their gear is featured by 1 artist, with the strongest followings in Electronic. Notable users include Roul and Doors.