A 12-stage DSP chain paired with adaptive parameter selection delivers reproducible, measurable results in seconds.
Every stage is tuned for professional mastering, from the initial DC offset fix to the final LUFS normalization.
Spectrum, dynamics and stereo measurements reproducibly adapt EQ, compression and width to the selected preset and target platform.
DC removal, correction EQ, de-essing, multiband compression, M/S processing, saturation, bus compression, true peak limiting and noise-shaped dithering — the full pro workflow runs in seconds.
One slider decides how hard the chain works: 0% stays close to the original, 100% pushes it to the max. Every DSP parameter scales along with it, without pumping or clipping.
Pick your target: Spotify (−14 LUFS), Apple Music (−16 LUFS), YouTube (−14 LUFS), club (−9 LUFS), or set a custom value. True peak ceiling stays at −1 dBTP across the board.
Switch between the original (A) and the master (B) with a click, seamlessly and without interruption, while a live visualization tracks the music in sync.
After the automatic master, fine-tune EQ, multiband compression, stereo width, saturation, bus compression and limiting. A movable audio loop and instant A/B comparison make changes audible in near real time before the full DSP chain renders a new master.
From LUFS and true peak through dynamic range and crest factor to BPM, key, spectral centroid, stereo width, mono compatibility and per-band frequency energy — every metric at a glance.
Upload a reference track and the engine approaches its tonal balance, dynamics and stereo width while the platform target controls loudness.
An animated waterfall display shows the frequency spectrum shifting over time in real time, from sub bass all the way up to the air frequencies.
A detailed original-vs-master comparison shows LUFS values, adaptive parameters, dynamic range and every setting used — all right in your browser.
Choose WAV 32-bit float, WAV 24/16-bit, FLAC 24-bit, MP3 or AAC for delivery. A compact MP3 preview is also created when the encoder is available.
The interface adapts to any screen, whether you're working from a laptop, tablet or phone.
Move faster: M starts mastering, space plays or pauses, A and B jump between original and master.
No tracking, no ad cookies, no analytics. Your audio files don't stick around on the server, and even fonts are served locally so no external request ever leaks your IP.
Loudness is automatically matched to the target value of each major streaming service.
Choose the delivery format; an MP3 preview is also created when available.
Upload your track, wait 30 seconds, done.
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