Observed arrival · 2026-09-29
Soaper Hub’s cold-process lye calculator
A free soap-making calculator for building recipes, estimating lye and water, comparing batches, and optionally tracking ingredient costs.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Cold-process soap makers planning or comparing recipes
- Worth noticing
- Recipe files can be downloaded as JSON and uploaded later; the page says recipe data is not stored on its server.
Field notes
Recipe inputs cover oil amounts by weight, volume, or percentage, with settings for lye type, superfat, fragrance, and water. Optional costing fields include lye and fragrance prices, bar count, and a target margin; the page explains that margin is not the same as markup. Its safety note treats the oil and SAP data as guidance and recommends checking lye calculations independently.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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