Venia Mastering · Tools
Free in-browser audio tools.
A small set of tools I built for the pre-mastering questions I keep getting asked. Everything runs locally — nothing uploads.
- No sign-up
- Files stay on your device
- Built by a mastering engineer
Mix Analyzer
LUFS & mix analyzer
Upload up to 20 tracks. Get LUFS, true peak, dynamic range, tonal balance, and a streaming-platform breakdown that shows exactly how Spotify, Apple, and YouTube will normalise each one.
Open toolStreaming Preview
Hear it the way each platform plays it.
Drop in your master, add a song you love as a reference, and switch between Spotify, Apple Music, YouTube, TIDAL and more to hear what loudness normalization does to each one.
Open toolMix Readiness
Pre-mastering checklist
Eleven auto-checks (format, sample rate, bit depth, peaks, DC offset, silence windows, balance, hidden bus-limiter detection) plus seven manual self-checks you confirm yourself.
Open toolReference Matcher
Match your mix to a reference
Drop your mix and a reference. I'll level-match them, overlay the spectra on a log-frequency chart, compare loudness and dynamic range, and write you a plain-English diff.
Open toolMono Compatibility
Will it survive in mono?
Phase correlation over time and across three frequency bands, plus an instant stereo / mono A/B so you can hear what gets quieter or disappears when the mix folds down.
Open tool