Free · No signup · Runs in your browser

Free SEO Tools

A growing toolkit of fast, no-nonsense SEO utilities — preview snippets, generate schema and redirects, analyse content, score domains and clean keyword lists. Every tool runs entirely in your browser: nothing you paste is uploaded.

93 free tools for the work an SEO does every day — no accounts, no API keys, no data leaving your machine.

On-page & SERP6

SERP Snippet Preview

See your title + meta render in Google, pixel-accurate.

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Meta & Open Graph

Title, description, canonical, OG & Twitter tags.

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Schema / JSON-LD

Valid structured data for Article, FAQ, Product & more.

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Heading Outline

Extract the H1-H6 tree + flag hierarchy gaps.

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Word & Char Counter

Words, characters, sentences, reading time + terms.

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Keyword Density

1/2/3-gram frequency & density % for any text.

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Content & keywords15

TF-IDF Analyzer

Find terms competitors use that your draft is missing.

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Keyword Combiner

Mix & clean keyword lists; export match types.

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Anchor Text Ratios

Audit anchor-text mix for natural link profiles.

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Text Case Converter

UPPER, lower, Title, camel, snake, kebab & more.

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Slug Generator

Turn any title into a clean, SEO-friendly URL slug.

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Readability Checker

Flesch reading ease & grade level for your copy.

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Disavow File Generator

Build a Google disavow .txt from toxic links.

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Long-Tail Expander

Expand seeds into long-tail keyword variations.

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Keyword Grouper

Cluster a keyword list by shared significant words.

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Search Intent

Classify keywords by search intent with visible rules.

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N-Gram Frequency

Top 2/3/4-word phrases by frequency in any text.

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Text Similarity

Score two texts for similarity and near-duplication.

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Co-occurrence Terms

Find terms that cluster around your target keyword.

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Entity Extractor

Pull likely named entities from text for topical coverage.

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Content Length Compare

Compare word, sentence & read-time across drafts.

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Crawling & redirects11

Robots.txt Generator

Crawl rules + AI-bot allow/block controls.

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.htaccess Redirects

301/302 rules, bulk maps, HTTPS & www canonicals.

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Hreflang Generator

Multi-language hreflang: link, sitemap & header.

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UTM Builder

Tag campaign URLs with source, medium & campaign.

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Robots.txt Tester

Check if a URL is allowed or blocked by robots.txt.

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Redirect Chain Checker

Spot chains & loops in a redirect map.

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Nginx Redirects

Generate Nginx redirect and rewrite directives.

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Next.js / Vercel Redirects

Generate Next.js and vercel.json redirects.

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Redirect Regex Tester

Test an Apache rewrite rule against a URL.

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Hreflang Validator

Validate hreflang tags for codes, x-default and dupes.

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llms.txt Generator

Build an llms.txt file to guide AI assistants.

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URLs & sitemaps7

URL Parser

Break any URL into scheme, host, path, query & hash.

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URL Encode / Decode

Percent-encode or decode URLs and query values, line by line.

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Query String Cleaner

Strip UTM & tracking params; dedupe and sort the rest.

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XML Sitemap Generator

Turn a URL list into a valid sitemap.xml.

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Sitemap Index Builder

Combine child sitemaps into one sitemap-index XML.

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Sitemap Validator

Check a sitemap.xml for structure, limits & bad URLs.

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Sitemap URL Extractor

Pull a flat URL list out of any sitemap.xml.

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Domain & niche research8

Brandability Checker

Score any name’s brand & SEO strength, factor by factor.

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Domain Name Generator

Spin keywords into domain ideas across TLDs & patterns.

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Drop-Date Estimator

Estimate when an expired domain finally drops.

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C-Class IP Checker

Group IPs by /24 to spot shared-subnet footprints.

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Punycode / IDN

Convert domains between Unicode and xn-- punycode.

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Domain Age Checker

Look up a domain’s real registration date and age.

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TLD Comparison

Compare common TLDs by type, use and restrictions.

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Transfer (EPP) Checklist

Step-by-step domain transfer checklist with progress.

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Email & DNS4

SPF Generator

Build a valid SPF record with DNS-lookup checks.

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DMARC Generator

Build a valid DMARC policy record with reporting.

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DKIM Record Helper

Format a DKIM DNS TXT record with BIND chunking.

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DNS Record Helper

Build and validate A, AAAA, CNAME, MX, TXT, NS, SRV.

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Lists & data7

List Compare & Diff

Compare two lists: in-both, only-A, only-B, combined.

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List Utility

Sort, dedupe, reverse, shuffle and count a list.

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Merge & Find Dupes

Merge lists and find items shared across them.

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List / Column / Comma

Convert between newline, comma, tab and column formats.

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Prefix / Suffix Lines

Add text, quotes or numbers to every line.

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CSV / JSON / Markdown

Convert tabular data between CSV, JSON and Markdown.

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CSV Column Extractor

Pull one column out of pasted CSV data.

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Text utilities6

Text Diff Checker

Compare two texts and highlight every change.

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Whitespace Cleaner

Strip extra spaces, tabs and blank lines from text.

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Duplicate Line Remover

Remove duplicate lines, with sort options.

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Find & Replace

Literal or regex find-and-replace with backreferences.

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Strip HTML Tags

Convert HTML to clean plain text.

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Stop Word Remover

Strip common stop words to expose meaningful terms.

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Developer utilities15

JSON Formatter

Beautify, minify & validate JSON and JSON-LD.

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Base64 Encode/Decode

Encode & decode Base64, UTF-8 safe.

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HTML Entity Coder

Encode and decode HTML entities.

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HTML ↔ Markdown

Convert between HTML and Markdown.

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Regex Tester

Test a regex against text; see matches and groups.

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Gzip Size Estimator

See how small text compresses with gzip.

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SVG Minifier

Strip SVG cruft and shrink the markup.

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Number Base Converter

Convert between binary, octal, decimal and hex.

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Unix Timestamp

Convert between timestamps and human dates.

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UUID Generator

Generate cryptographically random v4 UUIDs.

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Password Generator

Generate strong random passwords locally.

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Color Contrast (WCAG)

Check WCAG contrast ratio and AA/AAA pass.

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Lorem Ipsum Generator

Generate placeholder text by words, sentences or paragraphs.

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HTTP Status Codes

Searchable reference of HTTP status codes for SEO.

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Cron Expression Builder

Build and decode cron schedules with next run times.

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Images4

Image to Base64

Convert an image to a Base64 data URI, and back.

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Image Resize & Compress

Resize and compress images in your browser.

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Dimension & Aspect

Read dimensions, aspect ratio and resize proportionally.

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Favicon Generator

Generate favicon PNGs and the link tags from an image.

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Calculators4

CTR & Traffic

Estimate clicks from volume and rank via an editable curve.

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Keyword ROI

Estimate clicks, conversions and revenue for a keyword.

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Conversion & Revenue

Conversions, revenue and reverse traffic goals.

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Core Web Vitals Check

Grade LCP, INP and CLS against Google thresholds.

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Extractors6

Link Extractor

Pull every href from HTML, split internal vs external.

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Email Extractor

Pull every email address out of text or HTML.

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Domain Extractor

Extract domains from a URL list; root-domain mode.

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Image Source Extractor

Extract every image src and alt from pasted HTML.

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Number / Pattern

Extract numbers, prices, phones, or a custom regex.

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Between Delimiters

Pull text between any start and end markers.

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Tools sharpen the page. The domain decides the ceiling.

The fastest win in SEO is starting on a name that already carries earned authority. Browse 220,000+ pre-screened aged and expired domains, from $100 entry-level names through premium acquisitions, each screened across history, trademark, and safety before pricing.

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