QuickSEO

Free SEO Tools That Actually Work

No paywalls. No ads. No sign-up. All tools run in your browser. Built by a solo developer who got tired of fake "free" SEO tools.

Browser-basedZero server costReal-time resultsOpen source friendly

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Most Popular
Meta Tag Checker
Analyze title, description, OG tags, Twitter cards, headings, and more. Get actionable recommendations.
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OG Previewer
Preview how your page appears on Facebook, Twitter, LinkedIn, and Google/Discord. Check all Open Graph tags.
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SSL Checker
Verify SSL certificate validity, expiration date, issuer, and protocol details.
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Robots.txt Validator
Validate robots.txt syntax, check sitemap declarations, crawl rules, and indexing directives.
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Sitemap Validator
Validate XML sitemap structure, count URLs, and check for required elements like lastmod and priority.
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New
Schema Validator
Extract and validate JSON-LD & Microdata structured data. Check required properties for Rich Results.
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JSON Formatter
Validate, format, and minify JSON. Beautify messy JSON with a single click. Copy formatted output instantly.
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URL Encoder/Decoder
Encode special characters for URLs or decode percent-encoded strings back to plain text.
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Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 strings. Works with UTF-8 including CJK characters.
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Markdown Previewer
Live preview of Markdown with split view. Supports headings, lists, links, images, code, and blockquotes.
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New
QR Code Generator
Generate QR codes from any text or URL. Customize colors and size. Download as PNG. Pure client-side, no tracking.
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Color Picker & Converter
Convert between HEX, RGB, and HSL color formats. Live preview with instant copy. Supports all CSS color formats.
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Text Case Converter
Convert text between UPPER, lower, Title, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE.
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New
UUID Generator
Generate cryptographically random UUIDs v4. Create one or bulk UUIDs with a single click. Copy individually or all at once.
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New
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs or words. Customize count and copy instantly. Perfect for mockups.
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Password Generator
Create cryptographically secure random passwords. Choose length (4-128), uppercase, lowercase, digits, and symbols.
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User Agent Parser
Parse any browser User-Agent string. Extract browser, OS, device type, and engine information. Auto-detects your UA.
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URL Redirect Checker
Track every step of HTTP redirect chains. See each 301/302 status code and final destination. Essential for SEO migrations.
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Broken Link Checker
Scan any page for broken external links. Find 404 errors, dead links, and server errors. Fix bad links to improve SEO.
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Favicon Generator
Upload a PNG or JPG to generate favicons in all standard sizes. Get ready-to-paste HTML code. Pure client-side, no upload.
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New
Hreflang Generator
Create hreflang annotations for multi-language websites. Avoid international SEO errors with correct language-region tags.
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