Stem Checker

The Essential Tool for Checking and organising Stems and Multitracks.

Stop wasting time loading your bounced stems back into a heavy DAW just for a QC check. Stem Checker is a lightweight, high-performance macOS workflow utility designed to provide fast, sample-accurate synchronized playback for audio professionals, run checks for common issues instantly, and provide tools for lightweight organisation to sort your files.

Built for assistants, music producers, mixing engineers, and mastering engineers, Stem Checker dramatically accelerates your quality assurance workflow. Use it to verify your exports for missing audio, clipping, dual-mono exports, and content issues before they're sent to clients, collaborators, or mastering. Or as part of mix prep when receiving files from collaborators.

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 play back tools: Quickly isolate tracks with Solo or remove them from the mix with Mute to analyze your stems with precision, A/B between stems and a reference mix.
• Organisation: Convert dual-mono exports to true mono. Rename individual tracks, or use the batch renaming function to add prefixes, numbering and more.
• Export your way: Save instantly onto local drive, or use the Dropbox integration.

Stem Checker is the missing utility in your audio toolkit, designed to save you time and give you confidence in every export.