Before + after, at the same time. We'll sort them and start.
MIXProof
Demo · sample data
Pick up where you left off?
1 Load
2 Listen
3 Share
The Mix Academy · Before / After Studio
The proof is in the playback.
Drop your before and your after. MIXProof level-matches them so loudness can't fake the win, finds your strongest section, and builds a synced before/after you can share anywhere. Free.
Drop one at a time, or both mixes at once, anywhere on the page. It builds on its own. If the before and after land backwards, one tap swaps them.
Before
Drop the before
your rough — or the raw client files
VS
After
Drop the after
your finished mix or master
Got one in. Drop the other mix (or click the empty box) and it builds on its own.
Got raw multitracks instead of a before? Drop the multitracks and MIXProof builds a balanced before in your browser.
Your files never leave your computer
One drop, zero fiddling
Loudness-matched, honest A/B
Building your before/after
Level-matching, aligning, and finding your strongest section. The honest way to A/B.
Your before/after
before.wav · after.wav · level-matched
▶ Demo — Sunghyun Choi's "Emmanuel": the client's raw rough (before mixing) vs. David's final mix & master. Audio quality is reduced for this demo — drop your own files for full quality.
BeforeHit play to hear the before melt into the after, or tap Before / After to hold a side.— BPM· aligned
Section 1 · biggest momentdrag the middle to move · drag an edge to trim the length
0:00 / 0:00
Level Match on
Sections
Feel
Points
Sync0 ms
Each section eases in, plays the before, then melts to the after — clearly better. Tune the clip & fade by ear.
Download the proof
Your level-matched before/after as a clip you can post on your site or drop into a video. Your name on it. Free.
before · after
MIXProof
Before
-9.8
LUFS
88%
Width
-0.9
Peak
Mixed with MIXProof · The Mix Academy
Free · No card
Put your name on it.
Your full before/after is built. Add your name and email and it's yours — every section, level-matched, with your name on it, ready to post. Plus the occasional bit of mixing gold from David. Unsubscribe anytime.
Your session files stay on your computer. Only the short before/after preview you choose to share ever gets rendered. By entering your email you're joining The Mix Academy's list for occasional mixing tips. Unsubscribe anytime.
You're hearing the demo
This is a real before/after on a track we have rights to — so you can hear what MixProof does. To make and download your own before/after clip, drop your before + finished mix. No email needed to listen.
Posting it on a site or video? MP3 is all you need.
This is the demo — make your own
The demo track can't be downloaded. Drop your before + after and export your real before/after in seconds.
Put it on your website
Let the before/after sell your mixing services
Drop it into a YouTube video
Feature the mix — the level-matched proof does the talking
From The Mix AcademyMIXPrep
Loved the proof? Get back the first 60–90 minutes of every mix.
Drop a folder of multitracks → organized, renamed files
Category-aware gain staging, done for you
Your session's key, tempo & MixBrief — before you open your DAW