Three Tools, Three Philosophies
Lighthouse, axe, and RGAA Test are the most used in France with very different approaches.
Lighthouse
Chrome DevTools score on 100, ~40 rules. Quick but misleading — 100/100 doesn't mean accessible.
axe DevTools
Browser extension, 80+ WCAG rules, precise, CI/CD integrable. But not RGAA-specific, no RGAA compliance rate.
RGAA Test
The only RGAA-specific tool, evaluates 106 criteria, calculates official compliance rate, free, adapted to French legal context.
Which to Choose?
RGAA compliance: RGAA Test. Daily development: axe. First look: Lighthouse. CI/CD: axe-core. All three are complementary.
RGAA Test is essential for demonstrating RGAA compliance. Other tools complement for development and monitoring.