Accessibility Tools
Free, browser-based tools to help you read better and build more accessible websites. No sign-up, no install required.
6 tools available
Online Reader
Paste any text and read it with dyslexia-friendly fonts — OpenDyslexic, Lexend, or Atkinson. Adjust font size, spacing, add a color overlay, enable Bionic Reading, and more.
- OpenDyslexic, Lexend & Atkinson fonts
- Adjustable spacing, size & line height
- Color overlays & reading ruler
- Bionic Reading mode
Color Contrast Checker
Test background and text color combinations against WCAG AA and AAA accessibility standards. Get a live contrast ratio and instant pass/fail results.
- Real-time WCAG contrast ratio
- AA & AAA pass/fail for normal and large text
- Color picker + hex input, swap colors
- Smart contrast color suggestions
APCA Contrast Checker
Measure perceived contrast with APCA — the candidate contrast method for WCAG 3. Polarity-aware Lc values with minimum font sizes for every weight.
- Real-time perceptual Lc value
- Polarity aware — dark-on-light vs light-on-dark
- Minimum font size lookup per weight
- Use-case levels from Lc 15 to Lc 90
Reading Speed Calculator
Paste any text to instantly see your estimated reading time and words per minute. Compare your speed against average, fast, and speed-reader benchmarks.
- Estimated reading time in minutes & seconds
- Custom WPM input for your reading speed
- Word, sentence & paragraph stats
- Speed benchmark comparison
Readability Checker
Analyze your text with five research-backed readability formulas — Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, and ARI — and get a consensus grade level.
- 5 readability formulas in one tool
- Consensus grade level score
- Complex word highlighting mode
- Syllable & sentence statistics
Color Blindness Simulator
Upload any image and preview how it appears across 8 types of color vision deficiency — deuteranopia, protanopia, tritanopia, achromatopsia, and more. Use the draggable split view to compare original and simulated side by side, then export as PNG.
- 8 color vision deficiency modes
- Drag-to-compare split view
- Drag & drop image upload
- PNG export — image never leaves your device
Want accessibility everywhere?
Install the FocusFlow Chrome extension to apply dyslexia-friendly fonts, reading tools, and typography controls on every website you visit.
Add to Chrome — It's Free