Beatzucker
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Everything you need to know about Beatzucker, gathered in one place. Can't find it here? Reach out directly: info@re-beatz.com

Get Started

Your master, four steps away

01
WAVMP3FLAC
Upload your file
Drop in WAV, MP3, FLAC or AIFF — or just click to browse.
→
02
Spotify✓
Apple
YT
Set your target
Pick where it's headed — Spotify, Apple Music, club — plus the matching genre.
→
03
M
✓
Hit "M"
Click Master or press M — the AI takes it from there.
→
04
WAV 32
FLAC 24
MP3 320
AAC
Download
Grab it instantly as WAV 32-bit, FLAC 24-bit, MP3 320 and more.
Shortcuts

Move through the workflow without the mouse

M
Kicks off mastering
Space
Toggle playback
A
Listen to the original
B
Listen to the master
Visualizers

What each analysis actually tells you

Spectrum Analyzer

A live read of how energy spreads across the spectrum — frequency runs left to right (20 Hz – 20 kHz), level in dB runs bottom to top.

Waveform + Clip Markers

Sections flagged in red point to possible clipping (> −0.17 dBFS) — those flags should be gone once the track is mastered.

Stereo Field (Lissajous)

A straight vertical line means mono, an ellipse means stereo, and a wide circle means a very wide image. A positive correlation value tells you it's mono-compatible.

LUFS Meter
-9-14-20-30

Tracks integrated loudness in LUFS. Green means you're within streaming norms; red means you're too hot and the platform will turn it down for you automatically.

Spectrogram Waterfall

Frequency across, time down, colour for intensity — a quick way to see which frequencies are active and when, handy for checking transients.

Questions we hear a lot

Getting Started

Upload a WAV or MP3, pick a target platform and genre preset, and dial in the mastering intensity. One click on Master (or a tap of M) starts the engine: it measures your audio, derives suitable parameters, and runs the track through a 12-stage DSP pipeline.
You can upload WAV (any bit depth), MP3, FLAC, or AIFF. On the way out, choose from WAV 32-bit Float, WAV 24-bit, WAV 16-bit (dithered), FLAC 24-bit, MP3 320 kbps, MP3 128 kbps, or AAC 256 kbps.
Analysis wraps up in about 5–10 seconds. The full run — DSP pipeline plus every export format — takes anywhere from 30 seconds to 3 minutes depending on how long your track is, with a live progress indicator the whole time.
Yes, no catch. Auto AI, reference-track mastering, and every export format up to WAV 32-bit are free, no subscription attached. The only guardrail is a fair per-account daily limit that keeps the servers from buckling.

Mastering

The slider (0–100%) sets how hard the processing hits: near 0% it barely touches the signal, at 100% you get full compression, heavy EQ moves, and full saturation. 65% is a solid starting point for most tracks.
Each preset targets a different loudness standard: Spotify sits at –14 LUFS, Apple Music at –16 LUFS, YouTube at –14 LUFS, Club/DJ at –9 LUFS (properly loud), and Custom lets you set your own number. True peak ceiling stays fixed at –1 dBTP regardless.
Upload a track whose sound you want to chase. Beatzucker reads its spectral balance, loudness, dynamics, and stereo width, then steers your mastering toward that target — the same principle pro studios use. It's free for everyone.
Mid/Side processing splits the stereo signal into a centre component (Mid = L+R) and a side component (Side = L–R), so width and depth can be shaped independently. Beatzucker also strips frequencies below 120 Hz from the side channel automatically, keeping things tight for club playback.
A mono-compatible track still sounds right when it's summed down to a single speaker, a phone, or a club rig. You can spot it in the stereo field vectorscope as a positive correlation value — Beatzucker surfaces that number right in the analysis.

Analysis & Visualizers

A is your original upload, B is the finished master. Flip between them whenever you like — playback never pauses. Every visualisation (spectrum, waveform, stereo field, LUFS, spectrogram) updates in real time to whichever one is playing.
They flag spots where the peak level crosses 0.98 (–0.17 dBFS) — potential clipping in the original file. Once mastering runs, the True Peak Limiter should have cleaned all of that up.
Frequency runs horizontally (20 Hz–20 kHz), time runs vertically, and colour encodes loudness (black = quiet, white = loud). It's a fast way to see exactly when each frequency range kicks in — useful for transients and arrangement checks.
LUFS — Loudness Units Full Scale — is the standard loudness metric streaming platforms use. Spotify, for instance, normalises to –14 LUFS and quietly turns down anything louder. Beatzucker lands your track right on the target LUFS value up front.

Technical

Your original uploads are removed as soon as processing finishes — within 60 minutes at the latest. Finished masters stick around for 24 hours before being deleted automatically. Nothing is stored long-term, and nothing is shared with third parties.
Yes, in any current mainstream browser: Chrome 90+, Firefox 88+, Safari 14+, Edge 90+. The visualisations rely on the Web Audio API, which all of those support out of the box.
M kicks off mastering — same result as clicking the Master button, just faster. Handy when you're running several tracks back to back. Space bar handles play/stop.
Sure — pick a track, set your parameters, press M, wait for the download, then upload the next one and repeat. Your mastering history keeps the metadata for every past run (file name, LUFS values, parameters), though the actual audio files are only downloadable within that 24-hour window.
You've got 24 hours from completion to download your master. After that, files are wiped automatically and permanently — so don't sit on it too long.
No. Auto AI reads your audio — genre, dynamics, spectral balance — and picks matching mastering parameters accordingly, entirely free and with no separate cap beyond the standard fair daily limit.

Didn't find your answer?

Our team gets back to you within a day.

info@re-beatz.com