Observed arrival · 2026-11-08
hardcalc: a spreadsheet that lives in Markdown
hardcalc is a terminal spreadsheet that stores tables, formulas, typed units, and reports in readable Markdown files.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Terminal-first spreadsheet users and engineering calculators
- Worth noticing
- The sample calculation sheet shows intermediate equations and a utilization result, rather than only a final engineering value.
Field notes
The example expenses file combines a typed Euro amount, status values, formulas, and a formatting layer in one Markdown document. A separate engineering example traces a load calculation through bending stress to a reported utilization of η = 0.45. The homepage also lists spreadsheet-format import and export and describes a LibreOffice extension; those capabilities are presented as project features, not independently verified here.
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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