# FontFYI — Tools

> Interactive typography tools.

- [Font Pairing Generator](https://fontfyi.com/tools/pairing-generator/) — Select a font and get AI-recommended pairings with live preview.
- [Font Preview](https://fontfyi.com/tools/preview/) — Preview any Google Font with custom text, size, weight, and color.
- [Font Compare](https://fontfyi.com/tools/compare/) — Compare 2-4 fonts side by side with identical sample text.
- [Type Scale Calculator](https://fontfyi.com/tools/type-scale/) — Generate harmonious type scales using ratios like 1.25, 1.333, 1.5.
- [Font Stack Builder](https://fontfyi.com/tools/font-stack/) — Build CSS font-family stacks with web-safe fallbacks.
- [CSS Code Generator](https://fontfyi.com/tools/css-generator/) — Generate ready-to-use CSS @import and font-family code for any Google Font.
- [Contrast Checker](https://fontfyi.com/tools/contrast-checker/) — Check text/background color contrast ratio against WCAG AA and AAA standards.
- [Fluid Type Calculator](https://fontfyi.com/tools/fluid-type/) — Generate CSS clamp() declarations for fluid responsive typography between viewport sizes.
- [px / rem / em Converter](https://fontfyi.com/tools/px-converter/) — Convert between px, rem, em, and pt units instantly. Set your base font size.
- [Variable Font Playground](https://fontfyi.com/tools/variable-playground/) — Explore variable font axes interactively — weight, width, slant, and optical size.