CHITUBOX is a desktop slicing application for Mac that converts 3D models into layer-by-layer print files for resin (MSLA/DLP/LCD) and FDM 3D printers, with deep native support for the broad ecosystem of Chitu Systems–based machines.
What is CHITUBOX?
CHITUBOX is a 3D print slicer — the essential piece of software that sits between your 3D model file and your printer. You feed it an STL or OBJ, it carves the geometry into hundreds or thousands of ultra-thin cross-sections, calculates the exposure or extrusion path for each layer, and spits out a machine-ready file your printer can actually execute. Without a slicer, even the most detailed model is just data; CHITUBOX is what turns it into a physical object.
The application was built by Chitu Systems and is tightly optimized for resin printers — particularly the enormous market of ELEGOO, Anycubic, Phrozen, and Creality resin machines that run on Chitubox-compatible firmware. If you own one of those printers, CHITUBOX is effectively the manufacturer-recommended workflow.
What does CHITUBOX do best?
CHITUBOX excels at resin print preparation — specifically the fiddly, high-stakes work of placing and configuring supports before you commit a model to hours of UV exposure.
The auto-support engine is genuinely impressive. It analyses overhangs, identifies islands (floating geometry that will print in mid-air and fail), and populates a support tree in seconds. You can tune support tip diameter, density, and contact-point depth, then manually add or remove individual supports in a 3D viewport. For miniatures, jewellery, and intricate engineering parts where a single missed island means a ruined print, this level of control matters enormously.
Hollowing with drainage holes is another area CHITUBOX handles elegantly. A solid resin model wastes expensive resin and creates suction forces that tear prints off the build plate. One click hollows the interior to a configurable wall thickness; a second click punches drainage holes so uncured resin can escape. Competing tools like Lychee Slicer and PrusaSlicer handle this too, but CHITUBOX's workflow is particularly frictionless.
- Layer preview scrubber — drag through every layer before printing; catch problems at layer 3 rather than after hour 6
- Resin cost estimator — live readout of estimated resin volume and print time as you adjust parameters
- Multi-machine profiles — hundreds of pre-configured printer profiles covering most consumer resin machines
- Anti-aliasing controls — smooth jagged layer edges without slowing the exposure cycle
Is CHITUBOX free?
CHITUBOX Basic is free to download and covers the complete core slicing workflow — import, orient, support, hollow, slice, export. A paid tier called CHITUBOX Pro unlocks advanced features including an enhanced auto-support algorithm, more hollowing options, custom resin profiles, and priority support. For most hobbyists the free tier is entirely sufficient; Pro is worth it if you print professionally or push complex geometry daily.
Who should use CHITUBOX?
CHITUBOX is the natural first choice for anyone who owns a resin printer from ELEGOO, Anycubic, Phrozen, Creality, or any machine running Chitu Systems firmware — which covers the vast majority of consumer resin printers sold today. If your printer shipped with CHITUBOX mentioned in the manual, install this first.
It is also a strong pick for miniature painters, tabletop gaming hobbyists, jewellery designers, and dental/medical model printers — anyone who needs fine-detail resin output at scale. FDM users (Bambu Lab, Prusa, Voron) will find PrusaSlicer or Bambu Studio better suited to their machines; CHITUBOX's FDM support feels secondary to its resin pedigree.
If you are already deep in the Lychee Slicer ecosystem, switching costs are real — support trees are not portable between slicers and you would need to re-support all your saved projects. New buyers should absolutely start with CHITUBOX Basic before paying for any third-party alternative.
What are the best CHITUBOX alternatives?
The main competitor for resin printing is Lychee Slicer, which many advanced users prefer for its more sophisticated support editing UI and subscription-based feature set. PrusaSlicer is the gold standard for FDM but handles resin as an afterthought. Chitubox Basic versus Chitubox Pro is itself an upgrade decision worth making before looking elsewhere. For open-source purists, UVtools is a powerful post-processing companion that many users run alongside CHITUBOX rather than replacing it.
How does CHITUBOX compare to Lychee Slicer?
CHITUBOX wins on breadth of printer compatibility and the tightness of its firmware integration — if your printer is Chitu-based, export just works. Lychee edges ahead on support-editing ergonomics and its cloud-based model repair tools. CHITUBOX Basic is free with no feature timer; Lychee's comparable tier is also free but more aggressively gates advanced features behind a paywall. I keep both installed: CHITUBOX for day-to-day production slicing, Lychee when a model has genuinely pathological overhangs that need hand-holding.
