SEO

CODINGVILA COLLECTION

SEO tools

Audit metadata, structured data, crawl directives, and content signals locally.

24 focused tools

EXPLORE BY PURPOSE

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7 toolsOn-page metadata

Inspect page metadata, headings, keywords, and content structure.

2 toolsSchema and structured data

Generate and validate JSON-LD and structured-data syntax.

6 toolsCrawling & indexing

Build and validate sitemaps, robots directives, hreflang, and redirects.

2 toolsSERP and social previews

Preview titles, descriptions, social tags, and search presentation.

2 toolsContent quality

Measure readability, similarity, keyword usage, and writing signals.

3 toolsTechnical SEO

Inspect canonical, URL, link, and viewport configuration.

2 toolsAI search readiness

Prepare llms.txt and review AI-search readiness with clearly labelled heuristics.

ALL UTILITIES

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robots.txt Beautifiernormalize robots.txt groups, directive spacing, comments, and sitemap lines without changing directive order.

robots.txt Generatorgenerate a robots.txt policy with crawl rules and a sitemap location.

sitemap.xml Generatorgenerate valid XML sitemap entries from one absolute URL per line.

Meta Tag Generatorbuild a complete, reviewable set of title, description, canonical, robots, language, author, keyword, and social content-type tags.

Open Graph and Twitter Card Generatorgenerate social-sharing meta tags from page content and an image URL.

Canonical URL Generatorcreate a reviewable canonical link from an absolute HTTP or HTTPS URL, with explicit controls for tracking parameters, query strings, and trailing slashes.

JSON-LD Generatorgenerate valid Organization, Article, FAQ, or BreadcrumbList JSON-LD.

SERP Snippet Previewsimulate a desktop or mobile organic search snippet and review title and description length using transparent approximate width guidance.

Meta Tag Analyzerinspect pasted HTML for title, description, canonical, robots, viewport, and social metadata.

Title and Meta Description Checkermeasure title and description characters with approximate search-snippet width guidance.

Duplicate Meta Detectorfind repeated titles and descriptions in pasted page records.

Heading Structure Analyzerextract H1 through H6 from pasted HTML and flag skipped levels or multiple H1 elements.

Keyword-in-Title Checkercheck whether a target phrase appears in a title and report its placement.

Content-to-Code Ratio Calculatorcompare visible text length with pasted HTML source length as a transparent heuristic.

Schema Markup Validatorvalidate JSON-LD syntax and check basic @context and @type structure without claiming rich-result approval.

robots.txt Syntax Validatorvalidate common robots.txt fields, user-agent grouping, sitemap URLs, and line syntax locally.

hreflang Tag Generatorgenerate reciprocal HTML link elements from locale and absolute URL pairs.

hreflang Validatorvalidate pasted locale and URL pairs for duplicate languages and malformed absolute URLs.

Duplicate Content Similarity Checkercompare two text blocks with complementary lexical and phrase-overlap metrics, readable findings, and a clearly labelled heuristic assessment.

Passive Voice Detectorhighlight likely English passive-voice phrases using a transparent pattern-based heuristic.

Canonical Conflict Detectorinspect pasted HTML for multiple, relative, malformed, or conflicting canonical declarations.

Broken Link Syntax Checkerinspect pasted HTML anchors for missing, empty, fragment-only, unsafe, or malformed href values.

llms.txt Generatorgenerate a concise llms.txt-style Markdown index from a site name, summary, and page list.

llms.txt Validatorvalidate an llms.txt-style Markdown document for a title, summary, and absolute resource links.

Private seo tools for everyday work

Audit metadata, structured data, crawl directives, and content signals locally. Each page explains supported input and produces a real result without a server queue.

Why browser-based processing matters

Local processing reduces delay and avoids sending working data to a conversion service. Your browser and device still set practical memory limits, so review large results before production use.