Copal, a free resin slicer in your browser

Copal is a free slicer for resin 3D printers that runs entirely in your browser. Your models stay on your device: nothing is uploaded.

Open STL, 3MF and OBJ models, repair them, add supports, hollow them with drain holes and slice them into print files for your resin printer.

The editor needs JavaScript: turn it on in your browser to open Copal.

Supported printers

Anycubic

  • Photon (.pws)
  • Photon D2 (.dl2p)
  • Photon M3 (.pm3)
  • Photon M3 Max (.pm3m)
  • Photon M3 Plus (.pwmb)
  • Photon M3 Premium (.pm3r)
  • Photon Mono (.pwmo)
  • Photon Mono 2 (.pm3n)
  • Photon Mono 4 (.pm4n)
  • Photon Mono 4 Ultra (.pm4u)
  • Photon Mono 4K (.pwma)
  • Photon Mono M5 (.pm5)
  • Photon Mono M5s (.pm5s)
  • Photon Mono M5s Pro (.m5sp)
  • Photon Mono M7 (.pm7)
  • Photon Mono M7 Max (.pm7m)
  • Photon Mono M7 Pro (.pwsz)
  • Photon Mono SE (.pwms)
  • Photon Mono SQ (.pmsq)
  • Photon Mono X (.pwmx)
  • Photon Mono X 6K (.pwmb)
  • Photon Mono X 6Ks (.px6s)
  • Photon Mono X2 (.pmx2)
  • Photon P1 (.pp1)
  • Photon P1 Max (.pp1m)
  • Photon S (.pws)
  • Photon Ultra (.dlp)
  • Photon X (.pwx)
  • Photon Zero (.pw0)

Creality

  • Halot-Mage (.cxdlpv4)
  • Halot-One (.cxdlp)
  • Halot-Sky (.cxdlp)

Elegoo

  • Mars 4 Ultra (.goo, .ctb)
  • Mars 5 Ultra (.goo, .ctb)
  • Saturn 3 Ultra (.goo, .ctb)
  • Saturn 4 (.goo)
  • Saturn 4 Ultra (.goo, .ctb)

Phrozen

  • Sonic Mini 8K (.ctb)

What you need

A desktop browser with JavaScript, WebGL 2 and module Web Workers, such as a current Chrome, Edge, Firefox or Safari.

Copal is free. If it is useful to you, you can support its development: buy me a coffee.