Audio Tools for Engineers
Free browser-based tools for audio analysis and mixing. No signup, no install. Built by the team behind Buchert Audio plugins.
Tonality Check
Upload your mix and get a professional tonal balance diagnosis with musical observations. See where the balance tips and get a concrete starting point.
Open toolFrequency Analyzer
Analyze WAV, MP3 or FLAC files in the browser. Check spectrum balance, peak level, RMS level and common problem zones before you make mix decisions.
Open analyzerThe Double Wide
Free stereo width plugin. One knob from mono to wide. M/S processing with automatic bass mono-izing. AU + VST3 for macOS (Intel + Apple Silicon).
Download freeFast audio checks before the mix gets complicated
Buchert Audio tools are built for quick listening decisions: tonal balance, spectrum shape, stereo width and translation. They are not meant to replace the DAW. They give you a clean second opinion before you reach for another EQ curve, saturation stage or widening plugin.
Use Tonality Check when a mix feels unbalanced but you cannot yet name the problem. Use Frequency Analyzer when you need a visual check of low-end build-up, harsh presence or excessive top end. Use The Double Wide when the stereo image needs to narrow, widen or survive a mono check.