Open source
Accessibility Insights
Microsoft tools to check web pages and Windows apps for accessibility
AccessibilityMicrosoft accessibility checks
Alternatives to WebAIM Contrast Checker
12 tools like WebAIM Contrast Checker, chosen by what they do. About WebAIM Contrast Checker
Open source
Pa11y
Open source accessibility testing tools for the command line and CI
AccessibilityAutomated accessibility tests
Free trial
Polypane
Browser for responsive, accessible and SEO-friendly web builds
AccessibilityBrowser for responsive design
Free trial
axe Accessibility Testing
Accessibility testing platform built on the axe-core engine
AccessibilityAccessibility testing tools
Freemium
Stark
Accessibility checks for design files, code and live sites
AccessibilityAccessibility for designers
Open source
Leonardo
Open source colour tool for accessible contrast-based scales
Color and GradientsAccessible color scales
Curated
Realtime Colors
Preview color palettes and fonts on a sample website layout
ColorsLive palette preview
Curated
Khroma
Colour generator that learns the colours you like
Color and GradientsAI color palette generator
Popular
Adobe Color
Find, build and save color palettes with a wheel and contrast checks
ColorsColor wheel and themes
Free
Favicon.io
Free favicon generator from text, images, emoji or SVG files
Brand and LogoFavicon generator
Open source
Storybook
Open source workshop for building and testing UI components alone
Design SystemsUI component workshop