Calligraphy & Lettering

Simulate protanopia, deuteranopia, tritanopia, and other color vision deficiencies. Check color accessibility for designers.

Reproduce reviewed square-pixel active-image geometry for a documented target canvas using an explicit Fit/Pad or Fill/Crop mode and rounding rule.

Count words, characters, sentences, and paragraphs in any text instantly. Free word counter for essays, blog posts, SEO content, and social media limits.

Calculate new dimensions when resizing image. Maintain aspect ratio. For responsive images. Free design tool with instant browser-based results — no account

Professional color picker with HEX, RGB, and HSL conversion, WCAG contrast checking, and palette generation. Pick colors and copy CSS-ready values instantly.

Generate harmonious color palettes from a base color. Complementary, analogous, triadic, tetradic, monochromatic. CSS variables, Tailwind config, WCAG contrast.

Calculate total ROI and net gain or loss, then use CAGR for endpoint-only investments or money-weighted IRR for explicit year-end contributions.

Generate scan-testable URL, email, phone, WiFi, or escaped vCard QR codes with UTF-8 capacity checks, color warnings, raster logos, PNG, and SVG.

Add entered venue, per-person catering, decoration, and entertainment assumptions into a transparent event-cost and per-guest scenario.

Allocate exactly 100% of monthly income, compare non-negative actual spending, expose fixed-dollar extras, and review transparent balances and planning ratios.

Plan one defined menu item from entered attendance, portions per attendee, explicit extra portions, and the exact yield of a package or batch.

Compare two observed offers on one explicit shared denominator, with auditable unit prices, differences, and a true tie state.

Compare two complete quotes by dividing each total cost by its whole-unit quantity, with a signed per-unit difference and no invented scale assumptions.

Calculate a tip, total, and even split for 1–100 people, with optional per-person rounding and a disclosed effective tip percentage.

Compare equal, guest-night, and custom-unit vacation accommodation splits with exact-cent reconciliation and clear assumptions.

Reduce two bounded whole-number ratio parts and allocate one explicitly entered total with auditable proportions, percentages, and boundaries.

Convert a source-owned paper grammage or basis-ream mass with explicit basis dimensions and sheet count, then optionally reconcile a same-basis reported value.