cratefox
Invite-only · built by a DJ · runs on your machine

Paste a playlist.
Get a set that mixes in key.

Cratefox finds your tracks, reads the real key + BPM from the audio, and harmonically sorts your crate into a rekordbox-ready set, all on your machine, in one pass.

Free while in beta No account Your library never touches our servers Codes go out in small weekly batches
Cratefox
linkopen.spotify.com/playlist/4kR7pQm2WxT9sLuNfE01ab
Festival Warmup · 17 of 18 found · showing 6sorted for harmonic flow
UndertowNightform
8A122
AfterglowSable
8A123
Low TideKessler
9A123
Middle DistanceAuva
9A125
PalomaHalden
9B124
First LightMarlow
10B126
Harmonic run readyExport rekordbox / USB
Illustration, a simulated run. Cratefox matches tracks you have the right to play.
How it works

Three moves. Zero donkey work.

You did the digging. Cratefox does the prep: files, tags, keys, order. You start with a link or a screenshot and end with a USB you can walk to the booth.

01

Paste a link or screenshot

Spotify, Apple Music, YouTube, SoundCloud, a .txt list, or drop a screenshot.

02

It finds, tags and sorts

Each track found on your own Soulseek at the best quality it can, key + BPM read from the audio, clean names. No more track_01_FINAL(2).mp3.

03

Plug in. Play.

Export straight to rekordbox or a club-ready USB, ordered so the next one drops in key.

Trust

Check every claim. Then decide.

No account, no cloud processing, and a real person behind it. Here's exactly what it is.

Runs on your machine

  • Your files stay put. Tagging, key detection and harmonic sorting all run locally.
  • Your music never touches our servers. Setup sends a hashed hardware id with the code check, never the raw id, then the app only fetches the tracks you point it at. On Soulseek, your Cratefox downloads folder is shared back to the community, which is how the network stays healthy; the rest of your library never leaves your machine.
  • This site is zero-tracker. No third-party analytics, no session replay. Open your Network tab and check.

Installs like real software

  • The installer is one short script. Nothing hidden. Read every line before you run it.
  • Honest beta. Setup today is a one-line command you paste once; a signed one-click app is on the way.
  • You point it at music you have the right to play. It organizes your crate, it isn't a store.
FAQ

Quick answers.

What does it cost?

Free to use while it's invite-only. If it saves your prep nights, there's a tip jar. Any future paid tier will be spelled out plainly, no surprises.

Will my antivirus freak out?

In beta, setup is a one-line command, not a downloaded app. On Windows it may show a one-time SmartScreen prompt until it earns reputation.

What exactly does it export?

Clean, correctly-tagged track files with key + BPM written in, plus a rekordbox.xml and a numbered, in-order USB folder. The rekordbox export relies on a prebuilt library that installs automatically on most machines; without it you still get the tagged, sorted crate.

Do I need a Soulseek account?

No. Cratefox sets up a private one for you during install, stored only on your machine.

Where does the music come from?

Your own Soulseek network. Cratefox searches it from your machine and downloads what it finds there. It is for music you have the right to play, it is not a store. Like any Soulseek client, your downloads folder is shared back to the network; you choose what sits there, and the rest of your library is never shared.

How accurate is the key detection?

Key + BPM are read from the audio itself, not scraped from metadata. Where a prebuilt Essentia library is available, setup adds its sharper key detector; otherwise Cratefox uses its built-in estimator. Uncertain keys get flagged in the app with a second candidate, so you spot-check the few that need ears instead of the whole set.

Get in

Invite-only beta. Set up in one line.

I DJ, and I built this for my own prep. I send codes myself in small weekly batches as spots open. Refer a friend and you move up the line.