Comparison · 2026

Crate Cleaner vs Mixed In Key: the analyzer, and the app around it.

Mixed In Key is the reference key and energy analyzer: point it at your tracks, get accurate Camelot keys and a 1-to-10 energy score written into the tags any DJ software reads. Crate Cleaner does that analysis too, but only for Serato, and then keeps going: cleaning, repairing, and building sets from the results. Here's the honest breakdown.

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No fake reviews · Pricing checked August 2026

The short version: if you mix across rekordbox, Traktor, VirtualDJ or djay, if you're on Windows, or if all you want is the best-known key and energy tags on your files, Mixed In Key is purpose-built for exactly that and cheaper up front. If you're on Serato and want that analysis to live inside one app that also removes duplicates, relinks missing files, scores your library and builds harmonic sets, that's Crate Cleaner.

Mixed In Key set the standard for key detection and gave DJs the Camelot system that harmonic mixing runs on. We'd rather tell you that than pretend otherwise. The two tools even work together: analyze in Mixed In Key, clean and build in Crate Cleaner.

Side by side

Feature and pricing comparison.

 Crate CleanerMixed In Key
Built forSerato DJ Pro, one integrated library appAny DJ software, a dedicated analyzer
PlatformsmacOS (Apple Silicon & Intel)macOS & Windows
Key detectionBPM & key across the library, shown as Camelot in the crate browserSignature feature, the long-standing benchmark for accuracy
Energy rating1-to-10 energy, plus danceability, vocal detection and peak-time suitability1-to-10 energy, the feature it originated
Cue pointsAuto Cue writes real Serato hot cues, reviewed first, undoable (Studio)Writes cue points into the file for supported software
Works beyond SeratoSerato DJ Pro onlyTags read by Serato, rekordbox, Traktor, VirtualDJ, djay
Duplicate finder4 match types, auto-pick, archive never delete, kept tracks inherit cratesNot offered
Missing file repairConfidence-scored matching, bulk auto-relink, cues & crates intactNot offered
Library health scoreSix-signal score with ranked Top FixesNot offered
Harmonic set buildingSmart Crates: Camelot sequencing along an energy arc, labeled transitionsSeparate apps (Flow, Mashup); not in the analyzer
Play history analyticsTop tracks, transitions, BPM arcs from Serato historyNot offered
Safety modelRead-only scans, writes only while Serato closed, snapshots, restorable archiveNon-destructive tag writes into your files
Pricing modelPro $9/mo · Studio $15/mo · Lifetime $199One-time purchase, around $58 for the current version
Free optionFree plan on your real library, no cardNo free version; paid up front

FEATURES AND PRICES CHECKED AUGUST 2026 · SEE MIXEDINKEY.COM FOR CURRENT MIXED IN KEY DETAILS

Choose Mixed In Key if…

When the standalone analyzer is the right tool.

Choose Crate Cleaner if…

When you want more than tags on a Serato library.

FAQ

Common questions in this comparison.

What is Mixed In Key?
Mixed In Key is a dedicated key and energy analysis app for Mac and Windows. It listens to each track, detects the musical key in Camelot notation, assigns an Energy level from 1 to 10 and can write cue points, then saves all of it into the file's tags so any DJ software, Serato, rekordbox, Traktor, VirtualDJ or djay, can read it. It is an analyzer, not a library manager: it does not remove duplicates, relink missing files or organize crates.
Is Crate Cleaner a Mixed In Key alternative?
Partly. They overlap on analysis: Crate Cleaner detects BPM and key across your library and adds energy, danceability, vocal detection and peak-time suitability. But Crate Cleaner is a full Serato library manager on top of that, with duplicate removal, missing-file repair, a health score, harmonic Smart Crates and play analytics. Mixed In Key is a focused, cross-platform analyzer that writes tags for any software. If you want analysis inside a Serato cleanup and set-building workflow, Crate Cleaner replaces it; if you want the standalone key engine for non-Serato software, it does not.
Is Crate Cleaner's key detection as accurate as Mixed In Key's?
Mixed In Key has been the long-standing benchmark for key detection and popularized the Camelot harmonic-mixing system, and for pure key-detection accuracy it is purpose-built. Crate Cleaner detects BPM and key across your whole library and layers energy, danceability, vocals and peak-time on top, inside a Serato workflow. If key-detection accuracy is your single priority and you mix across different software, Mixed In Key is the specialist. If you want that data plus cleanup and set building on Serato, Crate Cleaner.
Can Mixed In Key clean my library or remove duplicates?
No. Mixed In Key analyzes tracks and writes key, energy and cue data into their tags. Finding duplicates, relinking missing files, scoring library health, building harmonic sets and showing play history are Crate Cleaner features, not Mixed In Key ones.
Does Mixed In Key work with Serato?
Yes. Mixed In Key writes its results into file tags that Serato reads, so its keys and energy show up in your Serato library. Crate Cleaner detects the same data natively inside Serato and writes real Serato hot cues. You can run both: Mixed In Key for the analysis and Crate Cleaner for the cleanup, repair and set building.
Which is cheaper?
Mixed In Key is a one-time purchase, around $58 for the current version at last check, which is cheap if key and energy tags are all you need. Crate Cleaner starts at $9/month with a $199 lifetime option and does far more than analysis. For tagging alone, Mixed In Key is the lower cost; for a whole Serato library workflow, Crate Cleaner is the better value. Prices checked August 2026.

Already have keys from Mixed In Key? Clean the rest.

Crate Cleaner's free plan scans your real Serato library for duplicates, missing files and health issues, no card required.

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Keep reading

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