Fluid Typography Generator

Build fluid type tokens across a viewport range, copy the scale, and review rem bounds and zoom behavior before production use.

Min base px

Max base px

Min ratio

Max ratio

Min viewport

Max viewport

Root px

Steps

Runs locally in your browser. Generated CSS is not deployed or tested against your site automatically.

Production CSS handoff

Review the CSS you will actually ship

This panel stays locked until you review the generated output above. It checks output shape, feature dependencies, motion/fallback concerns and creates a copy-ready component handoff.

Waiting for generated CSS

Output shapeLocked

Declarations—

UTF-8 bytes—

Browser preflightGenerate first

Features detected

Production findings

Copy-ready handoff

Generated component handoff will appear here.

Browser support is checked against the browser running this page, not every browser you support. Treat this as a production preflight, then test the copied CSS in your real component, content, cascade and target browser matrix.

Live type-scale preview & export

The primary generator above remains the source of truth. This view renders the same scale at a simulated viewport and exports the values in the handoff format your codebase uses.

Preview textViewport —Export format

—Scale steps

—Viewport range

Ready.

What this CSS result proves

Fluid type should preserve user zoom while scaling between your endpoints.

What to review before production

Use rem-based bounds and test 200% zoom plus small/large viewport extremes before shipping the scale.

Usage notes optional

Preview real text across the configured viewport range

A mathematically correct clamp() can still wrap badly with the actual headline, font, or container. The new preview uses the same min/max sizes and ratios as the primary generator and lets you scrub the viewport width while rendering editable sample text.

Export format should match the codebase

Plain CSS custom properties, SCSS variables, and a Tailwind-style fontSize object are different handoff shapes for the same clamp values. Copy the form your project actually consumes, then verify zoom, line-height, localization, and narrow-container wrapping in the real component.

Watch wrapping and hierarchy, not only the numeric size

A type scale can be mathematically smooth while producing awkward hierarchy when long headings wrap or translated text expands. Scrub the preview across the entire viewport range with representative content, then compare adjacent steps for meaningful visual separation. The exported clamp values still inherit the real project’s font metrics, container width, letter spacing, and line-height, so final review belongs in the actual component.