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PreForm vs ChiTuBox Basic: catalog facts
PreForm	ChiTuBox Basic

Best for: Owners of Formlabs resin and SLS printers	Best for: Resin 3D printing slicer that prepares models for SLA, DLP and LCD machines
Free Free download from Formlabs.	Free + paid options The Basic edition is free to download. ChiTuBox Pro is a separate paid product.
Windows, macOS	Windows, macOS
Automatic print setup Direct upload to Formlabs printers Native Apple silicon build	It handles the resin-specific work that filament slicers skip, including hollowing, drain holes, automatic supports and per-layer exposure settings for the printer profile you pick.
Only for Formlabs printers No Linux version Closed source	The free Basic edition is closed source and holds back the faster slicing engine and several support tools that are only in the paid Pro edition.
Downloadable app	Downloadable app
Not open source	Not open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for PreForm formlabs.com/software/preform Catalog checked September 23, 2026	Official website Full listing and sources Sources for ChiTuBox Basic chitubox.com/en/product/chitubox Catalog checked September 22, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.