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PreForm vs Lychee Slicer: catalog facts
PreForm	Lychee Slicer
	Screenshots
Best for: Owners of Formlabs resin and SLS printers	Best for: Preparing resin prints where automatic supports save the most time
Free Free download from Formlabs.	Free + paid options A free tier covers slicing and support generation but carries advertising and withholds some automation. Pro and Premium tiers are paid subscriptions.
Windows, macOS	Windows, macOS, Linux
Automatic print setup Direct upload to Formlabs printers Native Apple silicon build	Automatic support generation that resin printers genuinely benefit from Hollowing, drain holes and anti-aliasing built in Large library of printer and resin profiles ready to use Separate FDM edition alongside the resin one
Only for Formlabs printers No Linux version Closed source	Closed source, and the free tier shows advertising Batch processing and some automation are behind a subscription An account is expected to use it The vendor's domain moved from mango3d.io to lychee.co, so old links break
Downloadable app	Downloadable app
Not open source	Not open source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Offline features available
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 Lychee Slicer lychee.co flathub.org/apps/io.mango3d.LycheeSlicer Catalog checked September 21, 2026

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

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