Below are the guidelines for WCAG 2.1. You can review the guidelines for WCAG 2.2 here.
Principle: Perceivable
Information and user interface components must be presentable to users in ways they can perceive.
Guideline: Text Alternatives
Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language.
WCAG 2.1
WCAG 2.0
Guideline: Time-based Media
Provide alternatives for time-based media.
WCAG 2.1
WCAG 2.0
Guideline: Adaptable
Create content that can be presented in different ways (for example simpler layout) without losing information or structure.
WCAG 2.1
WCAG 2.0
Guideline: Distinguishable
Make it easier for users to see and hear content including separating foreground from background.
WCAG 2.1
WCAG 2.0
Principle: Operable
User interface components and navigation must be operable.
Guideline: Keyboard Accessible
Make all functionality available from a keyboard.
WCAG 2.1
WCAG 2.0
Guideline: Enough Time
Provide users enough time to read and use content.
WCAG 2.1
WCAG 2.0
Guideline: Seizures and Physical Reactions
Do not design content in a way that is known to cause seizures or physical reactions.
WCAG 2.1
WCAG 2.0
Guideline: Navigable
Provide ways to help users navigate, find content, and determine where they are.
WCAG 2.1
WCAG 2.0
Guideline: Input Modalities
Make it easier for users to operate functionality through various inputs beyond keyboard.
WCAG 2.1
Principle: Understandable
Information and the operation of the user interface must be understandable.
Guideline: Readable
Make text content readable and understandable.
WCAG 2.1
WCAG 2.0
Guideline: Predictable
Make web pages appear and operate in predictable ways.
WCAG 2.1
WCAG 2.0
Guideline: Input Assistance
Help users avoid and correct mistakes.
WCAG 2.1
WCAG 2.0
Principle: Robust
Content must be robust enough that it can be interpreted by a wide variety of user agents, including assistive technologies.
Guideline: Compatible
Maximize compatibility with current and future user agents, including assistive technologies.
WCAG 2.1
WCAG 2.0
