Master Sauce — a plugin by Sungwoo
Master it.
Musically.
Put Master Sauce last on your mix and turn one knob. Prep tightens the low end, the sauce adds tone, glue and size, and the finish makes it loud without crushing it. Release-ready in minutes.
- Your whole mastering chain on one screen
- One SAUCE knob, 0 to 100
- Loud and big without losing the punch
30-day money-back guarantee · instant download
below

Sound familiar?
The problem.
Your song sounds small
Next to the songs on your playlist, your mix sounds thin and quiet.
Mastering is confusing
Multiband this, LUFS that. Most mastering plugins cost over $100 and assume you're an engineer.
Loud means crushed
Push it louder and the punch disappears, the bass pumps and the top gets harsh.
Master Sauce is one screen and one dial: prep, sauce, finish. It gets your song loud and big while keeping the punch, and shows you when you've hit your target.
What it fixes
Problem in. Solved.
MONO BASS + WIDTH
Keeps everything under 120 Hz centred and widens only the highs, so the low end stays tight.
THE SAUCE
One dial for tone, glue and density. 50 is everyday; past 50 it gets bigger and wider.
MID-ONLY GLUE
The glue listens to the middle only, so wide sounds never pump.
LOUD + PUNCH / SMOOTH
Push it into a soft clipper and a true-peak limiter. PUNCH keeps the hits, SMOOTH keeps it gentle.
UNITY
Compare your master and your mix at the same loudness, so you hear the sound, not the level.
LOUDNESS AIM
Meters show where you are against streaming, loud or club targets.
Presets
How it works
Three steps. That's it.
Made for artists and producers who want a release-ready master without learning to master.

Put it last
On your stereo out. AUTO sets your input level.
Turn the sauce
50 is everyday. Go higher for bigger and wider.
Set the finish
Pick your loudness aim, punch or smooth, and bounce.
Who made this
Built by an artist and producer.
I'm Sungwoo, an artist and producer. I've been making music for over a decade, and I build tools for the parts that slow me down.
Mastering my own songs meant a chain of expensive plugins and settings I had to explain every time. Master Sauce is that chain made musical and simple: prep, sauce, finish.
Musical, straightforward mastering: your whole chain on one screen, with one SAUCE knob from 0 to 100.

One plugin. One price.
Get Master Sauce.
Master Sauce 1.0 · Mac & Windows
$39
One-time · yours forever · free updates
- 01 PREP: low and high shelf, mud dip, mono bass, width, warmth
- 02 THE SAUCE: tone, glue and density on one 0-100 dial (50 = everyday)
- 03 FINISH: calm, tape, loud, punch or smooth, ceiling
- A true-peak limiter that holds your ceiling
- UNITY to compare at the same volume, BYPASS to hear your mix
- Loudness meters with streaming / loud / club aims + 8 presets
- VST3 + AU (Mac) · VST3 (Windows), unlock on up to 3 computers
- 30-day money-back guarantee
Instant download · license key emailed to you
The bundles
All 10 for $149. Save 50%.
Every Hey Sungwoo tool, $300 bought one by one. Or start with 5 plugins for $99.
Questions
Asked & answered.
Will it work in my DAW?
Yes. Master Sauce ships as VST3 and AU, so it runs in Logic, Ableton, FL Studio, Studio One, Reaper, GarageBand and any DAW that loads those formats. Pro Tools (AAX) isn't supported yet.
Mac or Windows?
Both. Mac (Apple Silicon and Intel, AU + VST3) and Windows 10/11 64-bit (VST3). One purchase covers both.
Do I need to know music theory or mixing?
No. That's the whole point. Everything is built so you can get a great result fast, then tweak if you want to.
How do I install and unlock it?
Right after checkout you get an email with the download and your license key. Run the installer, put Master Sauce on your stereo out, as the last plugin, click Unlock and paste your key. After that it works offline.
How many computers can I use it on?
Your key unlocks up to 3 computers.
Is it a subscription?
Never. One payment, yours to keep, with free updates.
What if it's not for me?
30-day money-back guarantee, no questions asked. Put it on a real beat, and if it doesn't earn its spot, email sungwoo@heysungwoo.com for a full refund.
Windows says "Windows protected your PC". Is it safe?
Yes. That warning shows for new apps from independent developers. Click "More info", then "Run anyway".