Find the right online tool without searching through unrelated utilities. SEOToolCheckers organizes SEO, website analysis, content, image, ecommerce, and developer tools into dedicated categories based on the tasks they perform.
Whether you’re auditing a website, preparing content, troubleshooting technical issues, or working with digital files, browse the categories below to find a suitable tool.
Browse Tools by Category
SEOToolCheckers
Explore SEO Tools
Find the right tool by topic, data source, or workflow.
Technical SEO & On-Page
10 tools
External check
Meta Tags Analyzer
Inspect page titles, descriptions and social tags.
Open tool
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Website Indexability Checker
Review HTTP, robots and noindex signals.
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Canonical Tag Checker
Find declared canonical URLs and possible conflicts.
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Robots.txt Generator and Tester
Generate rules and test paths before publishing.
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Browser tool
Google Search Snippet Preview
Preview a simulated desktop or mobile search result.
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Hreflang Generator and Checker
Generate language tags and check live alternates.
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Browser tool
Meta Tag Generator
Create page and social metadata HTML.
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Source vs Rendered HTML Comparison
Compare source HTML with a captured rendered DOM.
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Mobile vs Desktop Content Comparison
Compare visible content from two browser viewports.
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Pagination Link Checker
Find next and previous links on paginated webpages.
Open toolKeywords & Search Results
11 tools
Browser tool
Search Console Regex Builder and Tester
Build query regex filters and test sample searches locally.
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Search Console CSV Comparison Analyzer
Compare clicks, impressions, CTR and positions across exports.
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Keyword List Grouper
Sort related search phrases into useful keyword groups.
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Keyword Cannibalization Analyzer
Review queries receiving impressions on more than one page.
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Keyword Density Checker
Count keyword and phrase frequency in pasted content.
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Keyword List Cleaner
Clean, filter and deduplicate keyword lists.
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N-gram Keyword Analyzer
Find recurring one- to four-word phrases in your keywords.
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Branded vs Non-Branded Query Classifier
Separate brand mentions from generic search queries.
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Keyword-to-Page Mapping Tool
Map keywords to pages using editable matching suggestions.
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API / Service
Keyword Search Volume Checker
Look up sourced search volumes from CSV or a configured provider.
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API / Service
SERP and Keyword Position Checker
Find your domain in supplied or live organic search results.
Open toolWordPress & Migration
9 tools
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WordPress Theme Detector
Identify public theme stylesheet and asset clues on a website.
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WordPress Redirect CSV Validator
Check redirects for duplicates, conflicts and loops before importing.
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Website Migration URL Mapper
Suggest old-to-new URL matches and export reviewed mappings.
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WordPress CSV Import Validator
Review WordPress import rows, fields and SEO metadata before uploading.
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Redirect Format Converter for WordPress Plugins
Convert exact URL redirects to Redirection and Rank Math formats.
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WordPress XML Export Inspector
Inspect exported posts, media records, slugs and statuses.
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WordPress Media URL Mapper
Review old and new media URLs before updating references.
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WordPress Permalink Rule Converter
Build redirect rules for common permalink structure changes.
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Before-and-After Migration Page Comparison
Compare source HTML and migration snapshots.
Open toolLinks, Backlinks & Redirects
9 tools
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Broken Links Finder
Find links on a public page and check their HTTP responses.
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Internal Links and Anchor Text Analyzer
Review on-page internal destinations and anchor text.
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Bulk HTTP Status and Redirect Checker
Check HTTP responses and redirect destinations for URL lists.
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Browser tool
Htaccess Redirect Generator
Generate carefully validated Apache redirects.
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Browser tool
Bulk URL Opener
Prepare and open batches of links in new browser tabs.
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Backlink Verification Tool
Check whether a particular public page links to your URL or domain.
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Redirect Rule Tester
Simulate redirect rules, flag loops and check live redirect responses.
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URL Parameter Cleaner
Remove tracking parameters without removing functional URL fields.
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Backlink Discovery Checker
Find links to your site on a supplied list of referring pages.
Open toolSitemaps, Feeds & Schema
9 tools
Browser tool
XML Sitemap Generator
Turn a verified URL list into a downloadable XML sitemap.
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XML Sitemap Validator
Check sitemap XML structure, entries and last-modified dates.
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Browser tool
Sitemap Comparison Tool
Find added, missing and changed sitemap URLs.
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Browser tool
Structured Data Generator
Create editable, standards-based JSON-LD for your pages.
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Structured Data Extractor and Syntax Checker
Extract and inspect JSON-LD and other structured-data declarations.
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Sitemap URL Extractor
Extract and filter sitemap URLs for downloads and auditing.
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Browser tool
HTML Sitemap Generator
Create a readable HTML site map from a list of page URLs.
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RSS and Atom Feed Validator
Check RSS and Atom XML feeds and export findings.
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Browser tool
Image and Video Sitemap Generator
Create image and video XML sitemaps from verified asset lists.
Open toolDomains, DNS & Security
10 tools
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DNS Records Lookup
Query public DNS records and review answers and TTLs.
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API / Service
WHOIS and Domain Registration Lookup
Look up public domain registration data using RDAP.
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SPF, DKIM and DMARC Checker
Inspect public email authentication DNS records.
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SSL Certificate and Expiry Checker
Inspect a public HTTPS certificate and expiry date.
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API / Service
DNS Propagation Checker
Compare current DNS answers from Google and Cloudflare resolvers.
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Reverse DNS Lookup
Find PTR hostnames and check their forward DNS.
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HTTP Security Headers Checker
Review HTTP security headers on public webpages.
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API / Service
IP and ASN Lookup
Find the network prefix and announcing ASNs for an IP address.
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API / Service
IP Geolocation Lookup
See provider-estimated location details for a public IP address.
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Browser tool
Email Header Analyzer
Inspect email routing and claimed authentication results locally.
Open toolSpeed & Performance
7 tools
API / Service
PageSpeed Insights Checker
Review current Lighthouse reports through Google PageSpeed Insights.
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Page Weight and Resource Analyzer
Review page HTML length and available linked resource sizes.
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Website Compression Checker
Read HTTP compression and content-encoding response headers.
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Cache Headers Checker
Inspect cache-control, validators and CDN response hints.
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Browser tool
HAR File Analyzer
Inspect browser-recorded requests, transfer sizes and timing.
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Performance Budget Checker
Compare your measured metrics with editable budgets.
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Responsive Image Loading Checker
Review srcset, sizes, image loading and markup.
Open toolAccessibility & UX
8 tools
Browser tool
Color Contrast Checker
Calculate WCAG text and interface contrast ratios.
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Image Alt Text Checker
Find missing alt attributes and review image descriptions.
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Form Label Checker
Inspect labels and accessible names of form controls.
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Heading Structure Checker
Review H1–H6 structure and heading level changes.
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Link Text Checker
Find unnamed links and ambiguous anchor text.
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ARIA Attribute Checker
Review ARIA roles, properties, states and referenced labels.
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HTML Landmark Checker
Inspect main, navigation, header and page regions.
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Touch Target Size Checker
Check measured interactive target sizes and spacing.
Open toolAnalytics & Campaigns
8 tools
Browser tool
UTM Link Builder with Bulk Mode
Create campaign-tagged links one at a time or in bulk.
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Campaign URL Validator
Review UTM tracking links for syntax and consistency.
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Google Analytics Tag Detector
Look for GA4 and Tag Manager signals in HTML source.
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Browser tool
GA4 Event Payload Validator
Review GA4 event JSON, names and parameter limits.
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Browser tool
Ecommerce Data Layer Validator
Check ecommerce event items, values and transaction fields.
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Browser tool
Click-Through Rate Calculator
Calculate CTR from clicks, impressions and an optional goal.
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Conversion Rate and ROAS Calculator
Calculate conversion rate, ad spend return and acquisition costs.
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Browser tool
GA4 CSV Report Analyzer
Summarize GA4 CSV metrics by page, date, event or channel.
Open toolEcommerce & Product Feeds
8 tools
Browser tool
Merchant Center Product Feed Validator
Check product feeds for missing fields and invalid values.
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Product Feed vs Website Price Checker
Compare feed prices with exports or visible product source data.
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Product Page SEO Checker
Review source HTML and product structured-data signals.
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Browser tool
GTIN and Barcode Number Validator
Check barcode lengths and GS1 check digits.
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Product Variant Canonical Checker
Review variant product URLs, groups and canonical references.
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Product Feed Format Converter
Convert Merchant product feeds between CSV, TSV and RSS XML.
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Duplicate SKU Finder
Find duplicated product SKUs and identify conflicting records.
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Product Feed Image Checker
Check feed image URLs and optionally inspect public image headers.
Open toolText & Content Utilities
10 tools
Browser tool
Word and Character Counter
Count words, characters, paragraphs and reading time locally.
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Text Comparison Tool
Compare two texts and locate additions and removals.
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Text Cleaner and Formatter
Fix messy spacing, extra blank lines and invisible characters.
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Duplicate Line Remover
Remove repeated lines while preserving the kept text.
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Text Case Converter
Change uppercase, lowercase, title or sentence case.
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HTML-to-Text Converter
Turn HTML into readable text without executing scripts.
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Markdown and HTML Converter
Convert common Markdown and HTML content in either direction.
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Readability Checker
Estimate English reading ease, grade level and sentence length.
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Unicode and Invisible Character Inspector
Find hidden Unicode characters and clean selected ones.
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Bulk Find and Replace Tool
Apply multiple reviewed text replacements safely.
Open toolImages & Media
9 tools
Browser tool
Bulk Image Compressor
Resize and encode JPG, PNG or WebP images privately in your browser.
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Image Resizer and Cropper
Resize images to exact dimensions, crop or contain and download the result.
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Image Format Converter
Convert JPEG, PNG and WebP files privately in your browser.
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EXIF and Metadata Remover
Re-encode photos and inspect source and output metadata markers.
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Favicon Generator
Create ICO and PNG favicon sizes, web manifest and install tags.
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SVG Optimizer
Clean and minify SVG markup without executing embedded content.
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Responsive Image and Srcset Generator
Create responsive image variants and ready-to-use srcset markup.
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Image File Inspector
Inspect image type, pixel dimensions and file metadata.
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Image Color Palette Extractor
Extract useful colors from a local photograph or graphic.
Open toolSocial Sharing & QR
5 tools
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Open Graph and Social Share Preview
Preview a social sharing card and generate Open Graph tags.
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Browser tool
QR Code Generator
Create downloadable and scannable QR codes without external APIs.
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QR Code Decoder
Read QR code text from an uploaded image locally.
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Social Share Link Builder
Build properly encoded share links for popular networks.
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Social Image Layout Preview
Check common social image sizes and crop previews.
Open toolDeveloper & Data Utilities
10 tools
Browser tool
CSV and JSON Converter
Convert CSV rows to JSON and JSON arrays to CSV.
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JSON Formatter and Validator
Check JSON syntax, format code and sort object keys.
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URL Encoder and Decoder
Encode and decode URL components, entire URLs and query values.
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Regular Expression Tester
Test JavaScript expressions with matches, captures and replacements.
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HTML Formatter
Indent HTML markup while preserving inline content.
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XML Formatter and Validator
Check XML syntax and format a well-formed document.
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CSV Structure Validator
Check CSV column consistency, headers and quoted fields.
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Base64 Encoder and Decoder
Encode text or files and decode Base64 locally.
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File Hash and Checksum Generator
Generate SHA hashes or CRC32 checksums for local files.
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Unix Timestamp Converter
Convert Unix seconds or milliseconds into readable dates.
Open toolNo published, enabled tools match the current filters. Publish the individual tool pages to include them here.
SEO and Search Optimization
SEO Analysis Tools
Examine webpage elements, on-page SEO signals, and content-related factors that may affect search visibility.
Keyword Research Tools
Explore search terms, analyze keyword usage, and identify relevant topics for website content.
SERP and Rank Checking Tools
Investigate search engine results, keyword positions, and search visibility using available ranking data.
Technical SEO Tools
Work with redirects, robots.txt rules, indexing-related settings, and other technical SEO elements.
Website Audit Tools
Review website characteristics, identify potential issues, and organize improvements for further investigation.
Website Analysis and Performance
Backlink and Link Analysis Tools
Examine inbound links, referring websites, and link-related information where supported data is available.
XML Sitemap and Structured Data Tools
Generate or examine XML sitemaps, structured data, and technical files used by search engines.
Domain, DNS and IP Tools
Look up domain information, inspect DNS records, and investigate IP addresses or network settings.
Website Speed and Performance Tools
Check page size, evaluate available performance measurements, and identify possible loading issues.
Accessibility Testing Tools
Review selected accessibility characteristics, including elements that may affect website usability.
Marketing, Content and Development
Analytics and UTM Tools
Prepare campaign tracking URLs, manage UTM parameters, and organize marketing attribution information.
Ecommerce SEO Tools
Work with product metadata, structured information, and SEO elements relevant to online stores.
Text and Content Tools
Count words, format text, examine content, and prepare written material for publication.
Image and Media Tools
Work with image sizes, formats, compression, colors, and other supported media tasks.
Developer and Converter Tools
Edit HTML, convert data formats, work with code, and handle common web development utilities.
Which Tool Category Should You Choose?
The best starting point depends on the problem you’re trying to solve.
- Improving a webpage: Start with SEO Analysis or Technical SEO Tools.
- Preparing an article: Explore Keyword Research and Text Tools.
- Investigating a slow website: Use Website Performance Tools.
- Checking domain settings: Browse Domain, DNS and IP Tools.
- Managing an online store: Explore Ecommerce SEO Tools.
- Editing website code: Use Developer and Converter Tools.
For example, use the Robots.txt Generator to prepare crawler instructions, the Page Size Checker to examine webpage size, or the HTML Editor to work with HTML content.
Find the Right Tool for Your Task
Each category brings related tools together, making it easier to compare their functions and move between relevant utilities.
Some tools calculate results directly from your input. Others depend on live website information, server-side processing, or external services. Check individual tool instructions and limitations before relying on their results.
Want to explore beyond one category? Visit the All Tools Directory to search the complete collection by name, function, or category.