Lexicon is a desktop application focused on DJ library music management. Where all the big DJ apps have library management as an afterthought, in Lexicon it is the primary focus. Lexicon lets you focus on keeping a clean, well organized library with its many tools at your disposal.

The big difference with DJ apps is that you can't mix tracks in Lexicon. Once you want to mix tracks, simply sync your Lexicon library to your favorite DJ app and start mixing.

A big part of Lexicon is now free: library conversion. You can convert your library to and from any DJ app we support (see below) completely free.

Apart from conversion, Lexicon offers unrivaled library management which does require a paid package.

Lexicon is compatible with Windows 10 (64 bit), Windows 11 and macOS (Catalina and newer. Apple Silicon is supported. May work on older macOS versions, but not officially supported).

You can use libraries from Serato 3 & 4 (Lite & Pro), Rekordbox (5, 6 & 7), Traktor Pro 3 & 4, VirtualDJ, Engine DJ and djay Pro. These have been tested with the latest versions, but earlier versions should also work.

The following music file types are supported: MP3, MP4, WAV, FLAC, AIFF, OGG, M4A, AAC.

Lexicon is currently available in 14 languages: English, German, French, Spanish, Italian, Dutch, Portuguese (BR), Greek, Japanese, Polish, Turkish, Thai, Russian, Vietnamese

The old Basic plan is mostly the same as the new Ultimate plan. The main difference is that Ultimate has cloud storage included and a few features like Cloud Database Backup and Local Path Mappings.

The old Pro plan had unlimited cloud storage, but that part is a separate addon now so you can combine it with Free, Essential or Ultimate. Other than that, Pro is identical to Ultimate.

Payments are handled through FastSpring that accepts credit card, PayPal, Amazon Pay and many local payment methods. Please refer to their website for a full list of payment methods.

You can cancel your subscription at any time. If you are on the monthly plan, your subscription will end at your current month and no further payments will be made.

Canceling is easy. You will find the cancel button in the Lexicon settings under "Subscription". Or if you don't have Lexicon installed anymore, you can send your last receipt number (it looks like LEXICON123-456) to our support and we'll take care of it.

We provide a 30 day money-back guarantee because we truly believe that you will love Lexicon.

If you are running into problems or Lexicon does not work for you, then we will try our best to fix the situation. If we can't find a solution, then we will refund you.

Yes, you can upgrade from Essential to Ultimate at any time. If you are on the lifetime Essential package, you only pay the difference in price between Essential and Ultimate.

Once your subscription expires, your Lexicon goes back into "demo mode" and you will lose access to most of the features. You will still be able to browse your library and create playlists, but you can't sync it to a DJ app anymore.
Your tracks and playlists won't be deleted, they will stay on your computer. If you ever decide to re-subscribe, you can continue where you left off. You won't lose anything.

Your cloud storage files will get deleted some time after your subscription expires.

Cloud Database Backup allows you to store your Lexicon database in the Lexicon cloud for safe keeping. You won't need to worry about losing your hard work.

Cloud Storage allows you to upload your music files to the Lexicon cloud. This serves as a backup of your music and lets you stream it to Lexicon even when you don't have the music files on your computer anymore.
Unlimited storage means practically unlimited and has a fair use policy. It's unlikely you will run into limits, but if you do, we will contact you for your future storage needs.

You can get very helpful support from the community on Discord or from Cuey, our chatbot on the support page.

On the Ultimate package, you get priority support when using the support page. This is straight from Christiaan, the creator of Lexicon. He's also very active on Discord and the forums, but Ultimate members will get priority.