Access should be part of the method.

Our approach

We check this site against WCAG 2.2 Level AA criteria during development. This is a testing target, not a claim of third-party certification or perfect conformance.

What we test

• Keyboard-only calculator, navigation, search, theme, import, export, and article flows.
• Automated axe checks with no serious or critical findings allowed.
• Responsive layouts from 320 to 1440 CSS pixels and browser zoom up to 200%.
• Light and dark color contrast, visible focus, reduced motion, headings, labels, and status announcements.

Known limitations

Automated tools cannot detect every barrier. Long data tables may still require horizontal scrolling on narrow screens, and behavior can vary with browser extensions, translation tools, or older assistive technology.

Report a barrier

If something prevents you from using a calculator or reading a guide, please report the page, browser, assistive technology, and the task you were trying to complete in the project's GitHub issue tracker.