All the tools.
21 free, browser-based tools. Grouped by what they do. Everything runs locally — nothing leaves your machine.
SEO Tools
Generators and checkers for meta tags, schema, robots.txt, and search results.
Meta Tag Generator
Generate meta tags, Open Graph tags, and Twitter Card markup for any page. Real-time preview with copy and download.
Use tool →Schema.org Generator
Generate JSON-LD structured data for LocalBusiness, Product, FAQ, Article, and 12+ schema types.
Use tool →Robots.txt Generator
Build a robots.txt file with User-agent, Allow, Disallow, and Sitemap directives.
Use tool →Hreflang Generator
Create hreflang tags for multi-language sites with ISO 639-1 language codes and x-default.
Use tool →Readability Checker
Score your text with Flesch-Kincaid, Gunning Fog, and Coleman-Liau readability formulas.
Use tool →Keyword Density Checker
Analyze word frequency, n-grams, and keyword density in any text.
Use tool →SERP Simulator
Preview how your page will look in Google search results before publishing.
Use tool →Marketing Tools
Campaign tracking, email tools, and conversion calculators.
UTM Link Builder
Build campaign URLs with UTM parameters for Google Analytics tracking.
Use tool →Email Signature Generator
Create professional email signatures that work in Gmail, Outlook, and Apple Mail.
Use tool →DKIM/SPF Generator
Generate DKIM and SPF DNS records for Google Workspace, Microsoft 365, or custom setups.
Use tool →A/B Test Calculator
Calculate the sample size needed for statistically significant A/B tests.
Use tool →Marketing ROI Calculator
Calculate return on investment for campaigns, channels, and marketing spend.
Use tool →CTA Button Generator
Generate CSS button code with live preview. Pick colors, sizes, and hover effects.
Use tool →Analyzers & Validators
Paste your HTML. Get instant feedback.
OG Tag Previewer
Preview Open Graph tags as they appear on Facebook, Twitter, and LinkedIn.
Use tool →Subject Line Analyzer
Score email subject lines for length, power words, spam triggers, and mobile preview.
Use tool →Email Header Analyzer
Parse raw email headers to trace delivery path, authentication, and delays.
Use tool →Heading Analyzer
Check your H1-H6 hierarchy for proper nesting and SEO structure.
Use tool →Alt Text Checker
Find images missing alt text in your HTML.
Use tool →Canonical Checker
Verify canonical URL tags in your page source.
Use tool →Email Compatibility
Check HTML email code for rendering issues across Gmail, Outlook, and Apple Mail.
Use tool →Twitter Card Validator
Preview and validate Twitter Card meta tags from any URL or HTML.
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