| What it does | Free web tools for SEO, code and everyday tasks
| HTML validation API and free online validator for deployed pages
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| FR
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free: unlimited validators and checkers, no account required, free site scans. Solo: 49 EUR per month including full site reports and monitoring of 1 site. Agency: 149 EUR per month including monitoring of 10 sites. Automatic fixes: from 3 EUR for 10 pages, 1 free fix daily without account. Full sit
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| Key features | - On-Page SEO Checker to audit page titles, meta tags, headings, images, links, canonical and structured data
- Website Speed Test with Google PageSpeed Insights and Core Web Vitals
- Image Compressor to shrink JPG, PNG and WebP images in bulk and resize
- JSON Beautifier to format, validate and minify JSON
- Broken Link Checker to find broken links, dead images and redirects
- DNS Lookup to fetch domain DNS records
- Website SEO Audit to crawl up to 100 pages and find missing titles and duplicate descriptions
- Password Generator to create strong random passwords
- QR Code Generator to turn links into scannable QR codes
- PDF tools including merge, split, compress, rotate, sign and watermark
| - Accessibility (WCAG) validation with machine-detectable failures
- HTML specification compliance checking
- Meta tags and viewport validation
- Open Graph checker
- Page weight measurement and compression analysis
- Single API endpoint with configurable checks
- Single verdict field for build pipeline integration
- Automatic AI-powered HTML fixes
- Weekly site audits with change notifications
- GitHub Actions integration
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| What makes it different | - 348 free tools with no sign-up required
- Most tools run in your browser so files stay on your device
- No accounts, no trials, no restrictions on tool usage
- Tools have no daily limits and light rate limits keep service fast
- Plain explanations for every result, not just numbers
| - One API call runs five checks on a single page fetch instead of five separate requests
- Single boolean verdict for build pipelines to act on without parsing prose
- False-positive filtering eliminates unreliable findings
- Quality score based on issue variety, not count, capping best-practice impact
- Free tools remain unlimited without account or daily limits
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 3 ● no change since last check | 9 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 10 |
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| Citation Flow (Majestic) | 19 | 32 |
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| Referring domains (Majestic) | 10 | 124 |
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SEOpeck
ValidateHTML