ARIA Validator for AI-Generated Code
Paste any HTML snippet and get an instant report of invalid ARIA attributes, hallucinated roles, and common AI code generator mistakes. Validates against the ARIA 1.2 spec. Built specifically for v0, Lovable, Bolt, and Claude Code output.
HTML input
Validation results
Paste HTML and click Validate to see results.
Shipping a v0, Lovable, Bolt, or Claude Code app?
AI code generators produce these exact ARIA mistakes constantly. Start from a baseline that doesn't make them. The A11y Starter Kit is a free open-source Next.js project with WCAG AA on every component, so you can paste AI-generated code on top without breaking accessibility primitives.
Get the A11y Starter Kit →ARIA is right. Does a screen reader agree?
Valid ARIA and correct announcements are different things. We test with NVDA and VoiceOver by hand, check focus management and keyboard paths, and hand your developers a report mapped to WCAG criteria with severity and reproduction steps. From $499.
Frequently Asked Questions
Common questions about the ARIA validator.
It checks against the ARIA 1.2 spec: invalid roles, unknown ARIA attributes, missing required attributes for each role, boolean attribute values, ID references in aria-labelledby and aria-describedby, redundant native roles, clickable divs without keyboard support, images without alt, and form inputs without labels.
We have audited hundreds of AI-generated React apps. The same ARIA mistakes show up over and over: hallucinated roles like "container" or "label", boolean values like aria-pressed="yes", clickable divs, missing form labels. This validator is tuned to catch these specific patterns alongside the standard spec checks.
Yes, mostly. The validator parses HTML so plain JSX with HTML attributes works. JSX-specific syntax like className becomes class, but the validator focuses on attribute names and values, so this rarely matters in practice.
No. The validator runs entirely in your browser using DOMParser. Nothing is uploaded, logged, or stored.
No. It catches ARIA-specific issues. For full WCAG 2.1 AA coverage, you also need contrast checking, keyboard navigation testing, screen reader verification, and manual review. Use this as one of several tools.