AltGen integrates into component libraries to create contextual alt text for complex UI

AI · 3 min read

AltGen's component plugins analyze a component's props, state, and nearby textual context to craft alt text that reflects the current UI presentation — for example describing a chart's active filter or a notification's urgency rather than only listing visible labels. The generated alt text is surfaced in code comments and as suggested attributes during review.

To counter the risk of incorrect descriptions, AltGen marks each suggestion with provenance metadata and a confidence score, and it records the input signals used to generate the alt text. Teams can lock finalized descriptions in their design system so future automated suggestions respect human-approved language.

Accessibility leads in the beta praised the reduction in manual alt-text churn, particularly for dashboards and dynamic media. They also emphasized the ongoing need for human review, especially in products where context and nuance significantly change meaning for assistive technology users.