Stem Checker

The Essential Tool for Professional Audio Stem Checking. Stop wasting time loading your bounced stems back into a heavy DAW just for a quick listen. Stem Checker is a lightweight, high-performance macOS utility designed for one purpose: to provide instant, sample-accurate synchronized playback for audio professionals. Built for music producers, mixing engineers, and mastering engineers, Stem Checker dramatically accelerates your quality assurance workflow. Use it to instantly verify your exports for sync, phasing, and content issues before they're sent to clients, collaborators, or mastering. Core Features: High-Performance Custom Engine: Experience flawless, glitch-free playback that scales to 40+ simultaneous stems, thanks to a custom audio engine built for professional use. Instant Mismatch Detection: Automatically identify stems with different lengths. A warning icon and proportionally scaled waveforms provide an immediate visual check for common export errors, saving you from costly mistakes. Seamless Workflow Integration: Load stems your way. Drag and drop files directly onto the app, use the traditional "Load" button, or use the powerful right-click "Stems" Quick Action directly within Finder. Full Keyboard Control: Control the transport with the spacebar (Play/Pause) and arrow keys (Seek) for a lightning-fast workflow without ever leaving your keyboard. Essential Mixing Tools: Quickly isolate tracks with Solo or remove them from the mix with Mute to analyze your stems with precision. Stem Checker is the missing utility in your audio toolkit, designed to save you time and give you confidence in every export.