REXPlayer is a handy Rex file and slice sample player for the Mac. It provides all the tempo flexibility you expect with Rex files in a fast, modern app that let’s you play any Rex file and play the individual slices.

Use REXPlayer anytime you need to quickly listen to Rex files. Or use it along side your favorite Digital Audio Workstation (DAW) as a great way to audition files and slices before importing them into your project. You’ll find REXPlayer useful even if your DAW already supports Rex files.

  • Fast, efficient way to play any Rex file
  • Play the file’s slices via MIDI or your computer keyboard
  • Tempo flex and lock control
  • Drag and drop with multiple files and folders
  • Drag export to your DAW
  • BINGO!!! ★★★★
    Fast, simple and reliable...
    If you are searching for a way to listen to your rex files, outside Reason, with the same agility you’re used to do inside it, look no further. works like a breeze.
    Mau Monteiro - MacAppStore | Brazil
  • Just what I need to listen to .rx2 files ★★★★★
    The easiest way to audition the files.
    Everything I tried to make it easy failed. This just works.
    Hoof - MacAppStore | Netherlands

Intuitive Controls and Rex Flexibility

Hands-on controls with visual display

Use REXPlayer's intuitive controls with all of Rex's flexibility when auditioning files. In many DAWs, a dialog box is all you get to preview Rex files before importing them - no controls, no waveform display, no ability to play the slices, and no tempo control to see how the file might feel at different tempos. Get hands-on control with REXPlayer.

Instant access to the individual slices

REXPlayer gives each of the Rex slices its own MIDI note number, so you can immediately play the slices from your MIDI controller to get creative with the slices and decide if this file is right for your project before you import it. Even the MIDI routing is simple and direct in REXPlayer.

SliceKeysNew in v1.6

No MIDI controller handy? Use SliceKeys to trigger slices from your computer keyboard instead – great for laptop users on the move!

Drag and Drop Simplicity

Opens and loads fast

DAWs are great, but they are generally large, complex apps with slow load times. REXPlayer is purpose built to play Rex files fast: drop some files and you can audition several files before your DAW has even opened.

Get out of the dialog box...

If you work with Rex files, you may have hundreds or thousands quietly tucked away in folders because navigating through folders in a dialog box to audition them is less than inspiring - especially when you're in a groove.

With REXPlayer, just drop entire folders full of Rex files and have hundreds queue’d up and ready to play, making it easy to find your loops, play the sounds, and get back to creating music.

...and back to making music

When you find the right file, just drag it directly from REXPlayer into your DAW - no need to jump back to the Finder to relocate the file ... though RexPlayer makes that easy, too.

Built for your Mac


REXPlayer takes advantage of Apple’s powerful CoreAudio technology to auto-locate your Mac’s audio interface and lock to its sample rate - no complicated setup or preferences to manage. Use your Mac’s built-in audio output or any compatible audio interface.


Select any available MIDI input to trigger the individual slices within a Rex file. Slices are automatically laid out for your MIDI controller to trigger sampler style.

Drag and Drop

Drop a file, a few files, a folder, or even a few folders full of Rex files on to REXPlayer. The files and its slices are ready to play nearly instantly.


System Requirements

Mac OS X 10.10 Yosemite or later

File Types

Rex (.rex), Rex2 (.rx2) and original ReCycle files (.rcy)

File Display


Number of slices

Sample waveforms

Sample rate & bit depth

Tempo & time signature

Loop length

Number of files loaded


Transport: Play / Pause / Reset

Tempo and tempo lock

MIDI Input

Next/Previous file

SliceKeys on/off

AutoPlay on/off

Show in Finder


Selected MIDI input for slice triggering

Get REXPlayer


Rex and ReCycle are trademarks of Propellerhead Software AB.
References or use of logos or trademarks do not necessarily constitute or imply an endorsement or recommendation by Propellerhead Software.