NEW: Mixed In Key 10

Buy for MacOS Buy for Windows

Any questions? Email [email protected]

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We’ve been improving Mixed In Key for the last 17 years. It has become the industry standard because of its focus on quality.

Get “Mixed In Key 10” now

Top DJs and producers use Mixed In Key.

David Guetta

“I’ve been using harmonic mixing for many years, but I had to find the keys with a keyboard.  Mixed In Key is as good, in less time. Magic!”

Armin van Buuren

“I’m a big fan of Mixed In Key. Keep up the good work!” – Armin is teaching DJs how to use Mixed In Key in his official MasterClass.


What do you love about Mixed In Key? “Everything.”

Nicole Moudaber

“Since I play with 4 decks simultaneously, I find Mixed In Key very useful especially when I play melodic and vocal tracks. Layering different drums, melodic riffs and vocals, the outcome is seamless and sounds so good with the dj style I’m into which is blending tracks, creating a continuous flow along the way”


“Mixed In Key is a huge time saver! I use it for all my DJ mixes these days.”


“I love Mixed In Key for its simplicity and functionality. I always use it before I add a new song to my set to make sure I know which key it is in.”

Sofi Tukker

“Mixed In Key is an essential part of all that we do. it comes into play with DJing and with producing. it’s a great tool and saves us a lot of time!”


“Mixed In Key is the miracle for all of us.”

Pete Tong

“Mixed In Key has proven to be a valuable and creative tool for both radio and club programming.  I’m hooked!”

Steve Aoki

“So efficient & easy to work with. I use it every time i make a mash up and it keeps all of my records organized so i can be creative on the fly. Love me some Mixed In Key!”

Jeffrey Sutorius (Dash Berlin)

“My secret weapon for all my #dashups has always been Mixed In Key, I never leave the house without it :-)”

Sebastian Ingrosso

“It doesn’t get in the way of the creative process, and it saves a lot of time. Professional DJs use Mixed In Key.”

LP Giobbi

“I live by Mixed In Key. I use it religiously and key everything so I know what key to jam on a piano on top of any song! It’s part of my performance.”


“Mixed In Key got so many great tools to help me only focus on being creative. Technology that makes me not think of technology! Ace!👌🏻” – Christian from Galantis

EastWest Studios, Hollywood

EastWest Studios, Hollywood

“Mixed In Key is installed on all computers at EastWest Studios. An easy and practical software that helps us on a daily basis to have the sessions go smoothly.”

Improve Your DJing and Music Productions

Our Mixed In Key result

Your music will be analyzed with the world’s most loved key detection. Mixed In Key gives you unique and exclusive tools to give you the pro-sound of your favorite DJs and producers. Make perfect DJ sets, mashups, remixes, and music productions in the right key.

Harmonic mixing guide
Energy level

Every song ranked 1-10 on how danceable it is. Make playlists where your favorite anthems are grouped together. Put all your chillout songs into another playlist. You will find the right song to play at the right time. Energy Level detection makes it easier to create playlists.

Energy level
Playlists with energy levels
Clean ID3 tags
Perfect Playlists

No-one likes an MP3 file filled with junk comments and other useless information. Mixed In Key will clean up your music files so only the most important information is displayed on your laptop or CDJ.

ID3 tags
Organize your music library
Cue points
8 Cues

Want to cue-up the best part of a record in seconds and mash things up with ultra-fast mixing? Mixed In Key will automatically suggest-and-store up to 8 cue points per track, saving you lots of time-consuming cue-point finding while in the DJ booth and hours of prep-time in your DJ management software.

Cue points
Use cue points in your DJ sets

Want a refresher on Harmonic Mixing?

Quick How-To Guide

Advanced Harmonic Mixing with DJ Carlo Atendido

Screenshots of Mixed In Key 10

Version 10

Accurate and super-fast. Drag-and-drop your files into your MacOS or Windows software, and it’ll show you the:

  • Musical key
  • BPM/tempo
  • How intense the track is, on a scale of 1 to 10
  • All of its meta-data
All this information is sent to your favorite DJ software and the ID3 tags of each file. You can use it anywhere.

Improve Your Playlists

Mixed In Key will help you delete junk from your ID3 tags. Your playlists in iTunes, Serato, Traktor, Rekordbox and all other DJ software will look perfect afterwards – because your ID3 tags will be organized with the same scheme.

Export Cue Points to Pioneer DJ’s Rekordbox, Serato and Traktor

Mixed In Key 10 now supports Cue Point export for RekordBox. So, whether you use Traktor, Serato or RekordBox, Mixed In Key 10 will give you up to 8 automatic Cue Points per track. Our pioneering algorithm detects the most important parts of your tracks and adds precision cue points, giving you ultimate control over your DJ sets.