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WCAG Explorer (beta)

This resource is designed for anyone eager to master digital accessibility. Explore WCAG success criteria through clear, easy-to-understand descriptions. We owe a special "hat tip" to Johannes Lehner’s WCAG Card Deck, which served as the inspiration for this project.

We plan to expand this library over time, so please check back regularly for updates.

Filters

Level

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  • Level A

Theme

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  • Wording

Principles

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  • Perceivable

7 success criteria found for Level A and Wording theme and Perceivable principle and

Success criterion 1.1.1 Non-text Content

Level Level A, WCAG principle: Perceivable

Assigned to the following themes: CODE AND LABELS SENSORY WORDING

All images and other non-text content (like icons, charts, audio, CAPTCHAs, or controls) must have a descriptive text alternative that conveys their meaning. Purely decorative content can be hidden from assistive technologies (e.g. using an empty alt attribute).

Success criterion 1.2.2 Captions (Prerecorded)

Level Level A, WCAG principle: Perceivable

Assigned to the following themes: SENSORY WORDING

Prerecorded videos with audio must have synchronised captions that include:

  • all speech and
  • relevant sound effects (like music, alarms, or laughter)

Success criterion 1.3.1 Info and Relationships

Level Level A, WCAG principle: Perceivable

Assigned to the following themes: CODE AND LABELS WORDING

Visual information and relationships (like labels, headings, or groupings) must also be conveyed in the code using:

  • semantic HTML (e.g. <label for="">, <ul>, <h1>), or
  • ARIA attributes (e.g. aria-describedby, role="group"),

so that assistive technologies can understand the structure.

Success criterion 1.3.2 Meaningful Sequence

Level Level A, WCAG principle: Perceivable

Assigned to the following themes: CODE AND LABELS WORDING

Content must follow a logical and meaningful order in the code so it can be understood correctly by assistive technologies even if the visual layout differs.

Success criterion 1.3.3 Sensory Characteristics

Level Level A, WCAG principle: Perceivable

Assigned to the following themes: FORMS SENSORY WORDING

Instructions and descriptions must not rely on sensory features alone, like color, shape, size, visual location, or sound.

Always provide additional text to clarify meaning.