| PDF Accessibility Checker (axe) | | 13 |
| tools, exploration, pdf |
| Alt Text Decision Helper (sco) | | 12 |
| tools, exploration, alt-text, html, images |
| Color Blindness Color Checker (ado) | | 11 |
| tools, exploration, colors, color-blindness |
| WebVTT Validator (ann/w3c) | | 10 |
| tools, exploration, optimization, conformance, captions |
| Color Contrast Analyzer (Myndex) (myn) | | 9 |
| tools, exploration, colors, contrast, apca, wcag |
| Color Contrast Analyzer (Polypane) (pol) | | 8 |
| tools, exploration, colors, contrast, wcag, apca |
| Accessibility Checker (AccessibilityChecker.org) (acc) | | 7 |
| tools, analysis, compliance, section-508, ada, wcag, bitv |
| Color Contrast Analyzer (Protean Studio) (pro) | | 6 |
| tools, exploration, colors, contrast, wcag, apca |
| Mobile-Friendliness Bulk Checker | | 5 |
| tools, analysis, responsive-design, mobile |
| Image Accessibility Analyzer (gez) | | 4 |
| tools, analysis, images |
| Accessibility Evaluation Report Generator (w3c) | | 3 |
| tools, exploration, content |
| Color Contrast Comparer (eig) | | 2 |
| tools, exploration, colors, contrast, wcag, comparisons |
| Color Contrast Analyzer (Alex Clapperton) (ale) | | 1 |
| tools, exploration, colors, contrast, wcag |
