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WebYes PDF Accessibility Checker vs Checkbox

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

WebYes PDF Accessibility Checker compared with Checkbox
Detail WebYes PDF Accessibility CheckerCheckbox logo Checkbox
What it doesFree online PDF accessibility checker with no sign-up required Subscription-law compliance as an API
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Free
PricingNot given Free with fair-use limits. No credit card required. Coming: Checkbox Warranty (planned protection for merchants, not yet available).
Key features
  • Upload PDF or paste public link for scanning
  • Issues ranked by severity from critical to minor
  • Click issues to see exact location in PDF
  • Guidance provided for fixing each issue
  • Checks against WCAG Level A and AA standards
  • Checks against PDF/UA (ISO 14289) standard
  • No sign-up, email, or file storage required
  • Scans PDF structure including reading order and heading levels
  • Verifies content accessibility like alt text and embedded fonts
  • Tests presentation including contrast, form labels, and tab order
  • Preflight checks for Stripe Checkout, Payment Links and disclosure text
  • Synthetic test subscriptions in Stripe test mode
  • Drop-in consent and renewal disclosure element
  • Hash-chained evidence vault with signed records
  • Machine-readable compliance plans with exact patches
  • MCP server for Claude, Cursor and VS Code
  • One-approval setup for AI coding agents via OAuth or device login
  • Webhooks and OpenAPI spec for integration
  • Email capture and classification
What makes it different
  • Free with no sign-up required
  • Online tool with no software installation needed
  • Plain-language guidance for fixing each issue mapped to standards
  • Access to paid expert audit and remediation services if needed
  • Built by certified accessibility specialists
  • Works with AI coding agents that can apply compliance fixes automatically via MCP server
  • Completely free with no credit card, plan limits, or paywall; fair-use limits only
  • Collects evidence from four sources for comprehensive monitoring
  • Every verdict includes requirement citation, evidence, and specific platform-based fixes
Community votes00
DR (Domain Rating by Ahrefs)67 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)160
Citation Flow (Majestic)240
Referring domains (Majestic)2490

4 details filled in for both companies.

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