All tools · page 269
6,901 free tools across 25 categories. Tools marked with a lightning bolt are ready to use right now.
Paste a question and accepted answer to get QAPage JSON-LD distinct from FAQ markup.
Paste foreground and background colors to get WCAG contrast ratios with AA and AAA verdicts.
Paste a failing color pair to get darkened and lightened alternatives that pass AA or AAA.
Paste a full palette to get every pair combination listed with pass or fail per WCAG level.
Set an overlay opacity to get scrim gradient CSS that guarantees readable text over photos.
Paste component colors to get 3:1 verdicts for icons, borders, and focus indicators.
Paste a palette to get color pairs that collapse under protanopia, deuteranopia, and tritanopia.
Describe a state design to get redundant-cue advice so color is never the only signal.
Set width, offset, and color to get :focus-visible ring CSS that meets 3:1 contrast.
List your animations to get a prefers-reduced-motion scaffold that pauses or simplifies each one.
Set palettes to get prefers-contrast media CSS variants for high and low contrast users.
Paste HTML to get the resulting tab order with tabindex misuse and off-screen traps flagged.
Paste HTML plus layout CSS to get spots where visual order diverges from DOM order.
Paste breakpoints to get where 400 percent zoom breaks reflow with 320px-safe fixes.
Paste control dimensions to get WCAG 2.5.8 target-size pass or fail with padding fixes.
Set adjacent control gaps to get minimum spacing advice rendered as safe margin CSS.
Paste an animation list to get parallax, zoom, and flash triggers flagged for motion safety.
Enter a blink rate to get a seizure-risk verdict against the three-per-second threshold.
Paste HTML to get a landmark region map with missing main, duplicate banners, and orphan content.
Paste HTML to get vague link texts like click here flagged with descriptive rewrite options.
Paste HTML to get duplicate id attributes flagged with the affected aria and label references.
Paste HTML to get invalid ARIA roles, missing states, and redundant roles flagged with fixes.
Paste form HTML to get every unlabeled input listed with corrected label markup.
Pick a validation scenario to get aria-describedby error markup with clear, polite phrasing.