Free Accessibility (WCAG) Tools
Check whether text and background colors meet WCAG 2.1 AA and AAA contrast ratios, and simulate how designs look with common types of color blindness. Accessible color choices help every visitor and are required in many regions.
WCAG Color Contrast Ratio Checker
Calculate text/background color contrast ratios according to WCAG 2.1 AA and AAA standards.
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Colorblindness Vision Simulator
Simulate Protanopia, Deuteranopia, Tritanopia, and Achromatopsia vision for design palettes.
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Text-to-Speech (TTS) Voice Synthesizer
Convert written text into natural spoken speech using Web Speech API SpeechSynthesis voices.
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Voice Speech-to-Text Dictation Transcriber
Transcribe spoken microphone voice audio into written text using Web Speech API SpeechRecognition.
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