Tools

Pricing

Use the tools without an account (Free) or upgrade for higher limits and ad-free usage.

Free

3–5 runs/day (per tool)

No signup

  • Ad-supported (single post-result ad)
  • All validation tools (JSON, HTML, robots.txt, Schema.org, etc.)
  • Best-effort limits: 1 request/10s, max 20k chars per request body
Use for free

Pro

30–50 runs/day (per tool)

One-time purchase

  • Everything in Free
  • Ad-free (or one unobtrusive post-result ad)
  • Higher daily limits
  • Usage dashboard
Sign up

API

API access + high limits

Subscription

  • Everything in Pro
  • Ad-free
  • API access for automation
  • AI-assisted help (planned)
Sign up

All plans use the same API. Authenticate with Authorization: Bearer YOUR_KEY or X-Api-Key: YOUR_KEY. See API Documentation.