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Accessibility tools online

Start with contrast: low-contrast text is one of the most common WCAG failures. These free checks help you catch issues before a full accessibility audit.

• WCAG Contrast Checker

  Paste two hex colors → contrast ratio + AA/AAA guidance (sRGB).

• HTML Validator

  Catch markup issues that often break assistive tech and layout.

• Security Headers Grade

  Hardening headers (CSP/HSTS) that also affect safe browsing contexts.

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