One diagnoses your mix and tells you exactly what to fix. The other is a full free DAW with built-in mastering. Here's how they compare — and why they work best together.
"MixDiagnose vs BandLab" is a fair comparison because both are free — but they do very different things. BandLab is a full digital audio workstation with recording, editing, mixing, and built-in AI mastering. MixDiagnose is a diagnostic tool that analyzes your mix and tells you exactly what's wrong and how to fix it. BandLab is where you make music; MixDiagnose is where you check if the mix is ready. They're complementary, not competitive. Let's break it down.
| MixDiagnose | BandLab | |
|---|---|---|
| Price | Free — 3 analyses/mo, no signup $5 one-time for 10 more · no subscription |
Free DAW + mastering BandLab Pro subscription available |
| What it is | Mix analysis & diagnostic tool | Full DAW with recording, editing, mixing, mastering |
| Frequency balance (6-band) | ✓ Yes — specific bands flagged | ✗ No diagnostic analysis |
| LUFS measurement | ✓ Yes — vs streaming targets | ✗ No |
| Dynamic range (crest factor) | ✓ Yes | ✗ No |
| True peak detection | ✓ Yes | ✗ No |
| Stereo width analysis | ✓ Yes — mono compatibility check | ✗ No |
| Specific issue flags | ✓ "Cut 3 dB at 350 Hz" | ✗ Just masters — no diagnosis |
| DAW / recording / editing | ✗ No — analysis only | ✓ Yes — full DAW |
| Signup required | ✓ No | ✗ Yes — account needed |
| Best for | Checking if your mix is ready to master | Creating, recording, mixing, and mastering music |
MixDiagnose gives you a full diagnostic report: 6-band frequency balance, integrated LUFS vs streaming targets (Spotify, Apple Music, YouTube), dynamic range crest factor, true peak, and stereo width with mono compatibility. Every finding is labeled Critical, Moderate, Minor, or Ideal. BandLab has a mastering feature, but it doesn't tell you what's wrong with your mix — it applies processing and gives you a result. There's no diagnostic readout, no severity grading, no specific issue flags.
MixDiagnose doesn't just say "your low mids are muddy" — it says "cut 3 dB at 350 Hz" and gives you a severity grade so you know if it's a dealbreaker or a nitpick. BandLab's mastering applies its processing behind the scenes. You hear the result but you don't learn what was wrong or how to fix it in your mix. If you want to improve as a producer, MixDiagnose teaches you; BandLab's mastering doesn't.
BandLab is a full DAW — you can record, edit, arrange, mix, and master entirely within it. It's a creative environment. MixDiagnose is a single-purpose diagnostic tool: upload, analyze, get a report, fix your mix. They're not in the same category. BandLab is where you make and mix music; MixDiagnose is where you check if the mix is done. You'd use BandLab to create, then export a bounce and run it through MixDiagnose to check your work.
Both are free to start — and that's the best part. MixDiagnose: 3 analyses per month, no signup, no credit card. $5 one-time gets you 10 more. No subscription. BandLab: free DAW with mastering, no time limits. BandLab Pro adds cloud storage and advanced features for a subscription. If you're on a budget, both tools are genuinely free. You can use BandLab to make music and MixDiagnose to check it — at no cost.
$0
to start, no strings
$0
free DAW, Pro subscription optional
BandLab and MixDiagnose aren't competing — they're in different categories. BandLab is a DAW where you make music. MixDiagnose is a diagnostic tool where you check if your mix is ready. The smart workflow: mix your track in BandLab, export a bounce, run it through MixDiagnose, fix the flagged issues in BandLab, then use BandLab's mastering (or any mastering tool) on the improved mix.
The common mistake is assuming BandLab's built-in mastering means you don't need to check your mix. But mastering — even AI mastering — works with whatever you give it. If your mix has a muddy low end or harsh highs, BandLab's mastering will process around those problems, not fix them. You'll get a louder version of a mix that still has the same issues. MixDiagnose catches those issues upstream, where they're still cheap to fix in your DAW.
The short version: mix in BandLab, check with MixDiagnose, then master. Both are free. Use BandLab to create and mix. Use MixDiagnose to make sure the mix is done before you master. It's two minutes of extra work that saves you from releasing a mix that isn't ready.
This adds about two minutes to your workflow and meaningfully improves the final master. The diagnosis is the cheapest part of the process — skipping it is the expensive part.
3 free analyses a month. No signup, no card.