Domain Arrivals
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Featured in Domain Arrivals · 2026-08-18

Sumotter, a calculator collection that shows its work

sumotter.com ↗ · Useful Tools · score 84.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

A browser-based library of 214 free calculators and generators spanning business, HR, finance, SEO, developer, and file tools.

Why it surfaced

Sumotter does more than return a number: it promises the reasoning, a worked example, and an explanation of where each metric can mislead. The collection includes unusually concrete tools such as Pay Equity, SaaS Quick Ratio, SAFE Note, Headcount Forecast, and Cost per Hire calculators, with no signup required.

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The Plotter’s 09:30 Shift

August 18’s newborn domains include an obsolete pen plotter clocking in at 09:30, emergency warnings designed for sight, touch, or hearing, a funeral-folder tool calibrated for printer drift, and photographs of Colombian rental signs turned into a housing map.

This is one of 1,000 discoveries in the 2026-08-18 Domain Arrivals issue.

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Program.Memorial, for the forty funeral folders you need at 9pm program.memorial

A free service-folder designer for funeral homes that creates print-ready programs, prayer cards, bookmarks, podium copies, and easel signs on ordinary letter paper.

 Ritournelle, a Pokémon sound-system laboratory ritournelle.stream

A browser audio tool that recombines the music of Pokémon Émeraude and Rouge Feu, letting one game's compositions play through the other's instruments.

 EqualSplit’s $79 Timing Gates equalsplitshop.com

A student-run nonprofit sells portable LiDAR sprint-timing equipment for athletes, coaches, and underfunded programs.