Accessibility

The interface is built aiming to meet WCAG 2.2 level AA: full keyboard support, visible focus, sufficient contrast and respect for reduced motion.

Every action —search, calculate, swap, copy and reset— works with the keyboard. Focus is always visible and touch targets measure at least 44 pixels.

Errors are communicated as persistent text next to the corresponding field, never by colour alone or with vanishing notices. Results are announced to screen readers through a stable live region.

Text keeps a contrast of at least 4.5:1 and control boundaries of at least 3:1. Pages remain usable at 200% zoom.

If you enable the reduced-motion preference, the interface removes transitions. Computation never waits for any animation.

If anything is hard for you to use, report it following the corrections page. Accessibility reports take priority.