WCAG 2.0 · Level AA · Perceivable

WCAG 1.4.4 — Resize Text

Text must scale up to 200% without loss of content or function.

WCAG 1.4.4 at a glance

Level AA · Principle: Perceivable · Added in WCAG 2.0. Level AA is the conformance target for the ADA, EAA, and Section 508.

What it means

Text must scale up to 200% without loss of content or function.

Who it helps

Low-vision users who enlarge text.

Common failures

  • Fixed-px containers that clip or overlap when text is zoomed
  • Text in images that can’t scale

How to meet WCAG 1.4.4

  1. Use relative units (rem/em) and flexible layouts
  2. Test at 200% browser zoom

How to test it

Manual — zoom to 200% and check.

Frequently asked questions

Is WCAG 1.4.4 Level A or AA?
WCAG 1.4.4 (Resize Text) is a Level AA success criterion, introduced in WCAG 2.0. Level AA is the standard required by the ADA, EAA, and Section 508.
How do I test WCAG 1.4.4?
Manual — zoom to 200% and check.

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