Observed arrival · 2026-11-04
OmniTools Lab’s five technical calculators
A free, no-account suite for construction and print calculations, including ramp slopes, stair dimensions, drainage pipes, book spines, and image resolution.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Builders, accessibility planners, print designers, and self-publishers
- Worth noticing
- The homepage cites DM 236/89, ADA, Blondel, and UNI EN 12056, and specifies a 3 mm book-cover bleed.
Field notes
The landing page separates building calculations from graphics and prepress tasks, with a named entry for each of the five tools. Its descriptions specify details such as pipe diameters of 40–200 mm and book-spine inputs including paper weight and bulk. The page also includes a legal limitation: results are for orientation and education, not a substitute for calculations, certification, or a signed design by a qualified technician.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
◎NicheUnusually specific use
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