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Analyzers
Performance testing and website analysis tools
5 tools available•100% Free & Private•No Sign-Up Required
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JSON Validator
Validate JSON syntax and structure. Detect errors and check for proper formatting.
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Mobile Speed Test
Test website speed on mobile devices with mobile-specific metrics and optimization recommendations.
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Page Speed Analyzer
Analyze page speed metrics including Core Web Vitals and get performance insights.
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WCAG Contrast Checker
Check color contrast ratios for WCAG 2.1 AA/AAA compliance and ensure web accessibility
wcagcontrastaccessibility
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Website Speed Test
Test website page load speed and get performance optimization recommendations.
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