The Complete Typography Reference

Master the art and science of typography

A comprehensive guide for web designers, UI designers, product teams, and developers. From type anatomy to design systems — theory, practice, and interactive tools.

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Interactive Tools

Practical calculators and playgrounds for real-world typography decisions.

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Type Scale Calculator

Generate modular type scales from any base size and ratio.

Font Pairing Tool

Compare proven font pairings with live Google Fonts previews.

Line Length Tester

Find optimal measure for readability across viewports.

Fluid Typography Generator

Generate clamp() CSS for responsive font sizes.

Typography Playground

Experiment with size, weight, leading, and tracking.

Contrast Checker

Test text and background color pairs against WCAG AA and AAA.

Typography Token Exporter

Export a complete type token set as CSS, Tailwind, or JSON.

Vertical Rhythm Calculator

Calculate baseline grid, line height, and heading spacing.

Hierarchy Preview

Preview h1–h6 heading hierarchy with an adjustable modular type scale.

Fluid Type System

Generate clamp() CSS for every step in a modular type scale.

Unit Converter

Convert between px, rem, em, pt, and percent with configurable root size.

Letter Spacing & Tracking Guide

Letter-spacing recommendations by font size with live preview.

Medium Typography Playground

Validate type sizes for print, slides, social media, and video with safe zones.

Built for designers who care about details

Inspired by Swiss design manuals, Material Design typography, Apple HIG, and modern product design systems from Linear, Stripe, and Vercel. Every chapter combines theory with practical rules you can apply immediately.

Crafted with care so you can focus on designing, not prompting. Everything here is written and built for you — no tokens required.

Begin with Fundamentals