108+ Free SEO Tools
for Marketers & Webmasters
The complete SEO toolkit — meta tags, sitemaps, schema generators, keyword tools, technical analyzers and more. All tools work via PHP + cURL. No payment, no API keys.
All Tools
108 toolsWord Counter
Count words, characters, sentences and paragraphs in any text.
Content & TextCharacter Counter
Count characters with and without spaces, plus reading time.
Content & TextKeyword Density (Text)
Find the most frequent keywords and their density in text.
Content & TextSentence Counter
Count sentences in your text and average words per sentence.
Content & TextReading Time Calculator
Estimate reading and speaking time for any text.
Content & TextFlesch Reading Ease
Score how easy your text is to read (Flesch-Kincaid).
Content & TextCase Converter
Convert text to UPPER, lower, Title, Sentence, camelCase, snake_case.
Content & TextReverse Text
Reverse characters, words or lines of any text.
Content & TextRemove Extra Spaces
Clean extra spaces, tabs and line breaks from text.
Content & TextRemove Line Breaks
Strip line breaks and join paragraphs into one block.
Content & TextText Line Sorter
Sort lines alphabetically, by length, or shuffle them.
Content & TextFind & Replace
Find and replace text with optional regex and case sensitivity.
Content & TextLorem Ipsum Generator
Generate placeholder Lorem Ipsum paragraphs, sentences or words.
Content & TextText Repeater
Repeat any text N times with custom separators.
Content & TextLine Deduplicator
Remove duplicate lines from a list, optionally case-insensitive.
Content & TextText Statistics
Detailed stats: words, chars, sentences, paragraphs, longest word.
Content & TextKeyword Merger
Combine modifier lists with seed keywords to build long-tail lists.
Keyword ResearchKeyword Suggestion Generator
Generate keyword ideas from a seed using common SEO modifiers.
Keyword ResearchLong Tail Keyword Builder
Build long tail keywords from 2-3 word lists (cross product).
Keyword ResearchKeyword Separator
Convert keyword lists between comma, tab, newline, pipe formats.
Keyword ResearchKeyword Deduplicator
Remove duplicate keywords, optionally case-insensitive.
Keyword ResearchKeyword Sorter
Sort keywords alphabetically, by length, or by word count.
Keyword ResearchNegative Keyword Builder
Build a negative keyword list from common free patterns.
Keyword ResearchMatch Type Converter
Convert keywords between Broad, Phrase, Exact match types.
Keyword ResearchKeyword Length Analyzer
Bucket keywords by length, count words and characters.
Keyword ResearchQuestion Keyword Generator
Generate question-form keywords (who, what, why, when, how).
Keyword ResearchInitialism Expander
Expand keyword initialisms (e.g. SEO to Search Engine Optimization).
Keyword ResearchKeyword Density (URL)
Fetch any page and find its top keywords by density.
Keyword ResearchMeta Tag Checker
Inspect title, description, OG, Twitter and JSON-LD of any URL.
On-Page SEOMeta Tag Generator
Generate meta title, description, robots and canonical tags.
On-Page SEOTitle Tag Preview
Preview how your title tag appears in browser tabs and SERP.
On-Page SEOMeta Description Generator
Draft meta descriptions within optimal character limits.
On-Page SEOHeading Checker
Audit H1-H6 heading hierarchy on any URL.
On-Page SEOImage ALT Checker
Find images missing ALT text on any page.
On-Page SEOImage ALT Text Generator
Generate ALT text templates from image filename + context.
On-Page SEOCanonical Tag Generator
Generate canonical link tags for duplicate-content control.
On-Page SEOOpen Graph Generator
Generate Facebook Open Graph meta tags for social sharing.
On-Page SEOTwitter Card Generator
Generate Twitter Card meta tags for tweet previews.
On-Page SEORobots Meta Generator
Generate robots meta tags (index, follow, noarchive, etc.).
On-Page SEOHreflang Tag Generator
Generate hreflang tags for international SEO.
On-Page SEOInternal Link Analyzer
Analyze internal vs external links on any URL.
On-Page SEOAnchor Text Analyzer
List all anchor texts and link targets on a page.
On-Page SEOSERP Snippet Preview
Preview how your page appears in Google search results.
On-Page SEORobots.txt Checker
Fetch and inspect any website's robots.txt file.
Technical SEORobots.txt Generator
Generate a robots.txt file with allow/disallow rules.
Technical SEOSitemap Checker
Detect and validate XML sitemap of any website.
Technical SEOSitemap Generator
Generate an XML sitemap from a list of URLs.
Technical SEOHTTP Status Checker
Check the HTTP status code returned by a URL.
Technical SEORedirect Checker
Trace redirect chains (301, 302, 307, 308) for any URL.
Technical SEOPage Size Checker
Measure HTML payload size and server response time.
Technical SEOBroken Link Checker
Find broken (4xx/5xx) links on any page.
Technical SEOSSL / HTTPS Checker
Verify HTTPS, certificate validity and protocol of any URL.
Technical SEOMobile-Friendly Checker
Check viewport, font sizes and tap-target hints for any URL.
Technical SEOCompression Checker
Check if Gzip/Brotli compression is enabled on a URL.
Technical SEOCache Control Checker
Inspect Cache-Control, ETag, Last-Modified headers.
Technical SEOMixed Content Checker
Find insecure HTTP resources on an HTTPS page.
Technical SEOFavicon Checker
Detect favicon declarations and sizes on any URL.
Technical SEOServer Header Analyzer
Inspect all HTTP response headers from any URL.
Technical SEOURL Encoder
Percent-encode any string for safe use in URLs.
URL & LinksURL Decoder
Decode percent-encoded URL strings back to plain text.
URL & LinksSlug Generator
Generate SEO-friendly URL slugs from any title.
URL & LinksURL Parameter Parser
Parse query string parameters into a clean table.
URL & LinksUTM Link Builder
Build UTM-tagged URLs for campaign tracking.
URL & LinksRelative/Absolute URL Converter
Convert between relative and absolute URLs given a base.
URL & LinksURL Status Batch Checker
Check HTTP status for up to 20 URLs at once.
URL & LinksQR Code Generator
Generate a downloadable QR code for any text or URL.
URL & LinksIDN / Punycode Converter
Convert internationalized domain names to/from Punycode.
URL & LinksLink Extractor
Extract all links (internal, external, anchor) from any URL.
URL & LinksHTML Encoder
Encode special characters into HTML entities.
HTML & CodeHTML Decoder
Decode HTML entities back to plain characters.
HTML & CodeHTML Minifier
Minify HTML by removing comments, whitespace, line breaks.
HTML & CodeCSS Minifier
Minify CSS by removing whitespace, comments.
HTML & CodeJS Minifier
Basic JavaScript minifier — strips comments and whitespace.
HTML & CodeHTML Tag Remover
Strip all HTML tags and get plain text.
HTML & CodeHTML Validator
Basic structural HTML validation — unclosed tags, missing attrs.
HTML & CodeHEX / RGB / HSL Converter
Convert colors between HEX, RGB and HSL formats.
HTML & CodeArticle Schema Generator
Generate JSON-LD schema for NewsArticle / Article / BlogPosting.
Schema MarkupProduct Schema Generator
Generate Product schema with price, availability, ratings.
Schema MarkupFAQ Schema Generator
Generate FAQPage schema for rich results in Google.
Schema MarkupRecipe Schema Generator
Generate Recipe schema with cook time, ingredients.
Schema MarkupEvent Schema Generator
Generate Event schema for concerts, webinars, meetups.
Schema MarkupLocal Business Schema
Generate LocalBusiness schema with NAP, hours, geo.
Schema MarkupBreadcrumb Schema
Generate BreadcrumbList schema for navigation trails.
Schema MarkupVideo Schema Generator
Generate VideoObject schema for video rich results.
Schema MarkupSocial Preview Tool
Preview how your URL looks on Facebook, Twitter, LinkedIn.
Social & SharingHashtag Generator
Generate hashtags from any keyword or topic.
Social & SharingTwitter Character Counter
Count characters for tweets, with URL handling.
Social & SharingInstagram Bio Formatter
Format Instagram bios with line breaks and symbols.
Social & SharingYouTube Tag Extractor
Extract meta keywords from any YouTube video page.
Social & SharingOG Image Size Checker
Check OG image dimensions and ratio for any URL.
Social & SharingEmail Validator
Validate email format, MX-style checks and common typos.
WebmasterPassword Strength Checker
Test password strength with entropy and crack-time estimates.
Webmasterhtaccess Generator
Generate .htaccess rules for redirects, www, HTTPS, caching.
WebmasterBase64 Encoder / Decoder
Encode or decode Base64 strings, including UTF-8.
WebmasterMIME Type Finder
Find the correct MIME type for any file extension.
WebmasterIP Address Inspector
Inspect IPv4/IPv6 structure, class, CIDR, range.
WebmasterUser-Agent Parser
Parse any User-Agent string into browser, OS, device.
WebmasterCron Expression Builder
Build and explain cron schedule expressions.
WebmasterDomain Age Calculator
Calculate the age of a domain from its registration date.
Conversion & MiscWord Cloud Generator
Generate a frequency-weighted word cloud from text.
Conversion & MiscText Diff Checker
Compare two text snippets and highlight differences.
Conversion & MiscPlagiarism Self-Check
Find duplicate phrases inside your own text.
Conversion & MiscHash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes of any text.
Conversion & MiscUUID Generator
Generate v4 UUIDs in bulk for IDs and tokens.
Conversion & MiscJSON Formatter / Validator
Format, validate and minify JSON data.
Conversion & MiscRegex Tester
Test regular expressions against any text with highlights.
Conversion & MiscMarkdown Preview
Write Markdown and see the rendered HTML preview live.
Conversion & MiscUnix Timestamp Converter
Convert Unix timestamps to human dates and back.
Conversion & MiscWhy Choose Our SEO Tools?
Privacy First
Most tools run on your server. URL-fetching tools use SSRF-protected cURL with private-IP blocking.
No API Keys
Every tool works out of the box. No registration, no API keys, no third-party services.
Free Forever
All 108+ tools are completely free with no rate limits or hidden costs.
Server-Side Fetching
Tools that scan URLs use PHP cURL. No CORS issues, no browser restrictions, real results.
Modern & Fast
Built with vanilla PHP + CSS. Responsive on every device, accessible, and lightning fast.
Comprehensive
From content analysis to schema generators, keyword research to technical SEO — every task covered.