WCAG 2.1 · Level A · Perceivable
WCAG 1.2.2 — Captions (Prerecorded), explained with examples
Captions must be provided for all prerecorded audio in synchronized media. Deaf and hard-of-hearing users (1 in 6) cannot access audio content without captions; auto-translated captions also benefit non-native speakers.
- Number
- 1.2.2
- Level
- A
- Principle
- Perceivable
- Guideline
- 1.2 Time-based Media
Why this criterion exists
Deaf and hard-of-hearing users (1 in 6) cannot access audio content without captions; auto-translated captions also benefit non-native speakers.
If you only remember one thing: captions must be provided for all prerecorded audio in synchronized media. Everything else on this page is detail.
Who feels it when this fails
Accessibility criteria sometimes feel abstract until you see who pays the cost when a site ignores them. Captions (Prerecorded) affects:
Deaf and hard-of-hearing users
Non-native speakers
Users in sound-off environments
How sites typically fail it
These are the patterns we see week after week. None are intentional — they are accidents of how teams build interfaces under deadline. Knowing the failure modes is the fastest path to writing them out of your component library.
Marketing videos without captions
YouTube auto-captions left as the only option
How to test for it
Watch every video with sound off; meaning must be preserved.
Automated scanners catch this criterion most of the time, but never all of the time. Manual testing with the keyboard and a screen reader closes the gap.
A code fix you can copy
Author and ship a real WebVTT caption file. Auto-captions are not WCAG-compliant.
The problem
<video src="/promo.mp4" controls></video>The fix
<video src="/promo.mp4" controls>
<track kind="captions" src="/promo.en.vtt" srclang="en" label="English" default>
</video>Author and ship a real WebVTT caption file. Auto-captions are not WCAG-compliant.
Other Perceivable criteria
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