Health

Calculate RER = V̇CO₂/V̇O₂ from measured gas exchange. Resting interpretation: 0.70 fat, 0.80 mixed diet, 1.00 carbohydrate; exercise interpretation: RER ≥ 1.10 supports maximal effort. Not medical advice.

Health

Interpret an RQ against the Lusk non-protein table: 1.00 carbohydrate, 0.707 fat, interpolated %CHO/%fat and kcal per L O₂. RQ above 1.0 is flagged as non-steady-state CO₂ excess. Not medical advice.

Design

One master image in, a full multi-platform asset kit out — every crop previewed with verified safe-zone overlays and shipped as a ZIP.

Media

Estimate an audio file's chord sequence locally and download CSV, JSON, SVG, and method notes in one ZIP.

Media

Extract a dominant melody path from audio and export MIDI, note events, a pitch contour, SVG, and JSON in one ZIP.

Health

Annual personal CO₂e from diet, energy, fuels, flights, transit, and waste with per-category breakdown and target comparisons.

Health

Richness S with Margalef/Menhinick indices, Shannon H′, Pielou evenness J, and Berger–Parker dominance from a named or plain species list.

Health

Compute the antibiotic stock volume for a target working concentration with C₁V₁ = C₂V₂, supporting mg/mL, µg/mL, g/L, ng/mL and × fold notation.

Design

End-to-end frosted-glass / neumorphism CSS snippet generator: blur+saturate backdrop, tint, border, layered shadows, grain overlay, @supports fallback, -webkit- prefix, Tailwind mapping and live preview.

Health

Compute Shannon H′ from species counts with H′max and Pielou evenness, in ln, log₂, or log₁₀ base.

Utilities

One pass replaces bit.ly + Campaign URL Builder + QR generator: GA4-validated UTM parameters, a deterministic self-hosted short link (FNV-1a base62 slug), QR pair, redirect snippets and a tracking CSV row.

Health

Compute Gini–Simpson D, dominance λ, reciprocal 1/λ, and Simpson evenness from species counts.