A to Z Free SEO Tools

Every SEO check you run in a week, on one site

51 tools for audits, keywords, sitemaps, tags and domain lookups. No account, no trial countdown, no watermark on the export. Type what you need.

Site analysis Generators Keywords Domain & server Content & text Social & video Calculators

Site analysis

11 tools

Point a tool at a URL and get a verdict.

  • A to Z Free SEO Tools › Site analysis

    Website SEO Auditor

    Run 25+ on-page checks against any URL and get a score.

  • A to Z Free SEO Tools › Site analysis

    Meta Tag Analyzer

    See every meta tag a page serves, with length warnings.

  • A to Z Free SEO Tools › Site analysis

    Keyword Density Checker

    Count one, two and three-word phrases in a page or block of text.

  • A to Z Free SEO Tools › Site analysis

    Broken Link Checker

    Test every link on a page and flag the dead ones.

  • A to Z Free SEO Tools › Site analysis

    Redirect Checker

    Follow the full redirect chain, hop by hop.

  • A to Z Free SEO Tools › Site analysis

    HTTP Header Checker

    Read the raw response headers a server sends.

  • A to Z Free SEO Tools › Site analysis

    Robots.txt Tester

    Fetch a robots.txt and test whether a path is crawlable.

  • A to Z Free SEO Tools › Site analysis

    Sitemap Validator

    Parse an XML sitemap and check its URLs.

  • A to Z Free SEO Tools › Site analysis

    Page Speed Checker

    Measure DNS, connect, TTFB, transfer and total page weight.

  • A to Z Free SEO Tools › Site analysis

    Mobile-Friendly Checker

    Check viewport, tap targets, font sizes and fixed widths.

  • A to Z Free SEO Tools › Site analysis

    Link & Anchor Text Extractor

    Pull every link, anchor text and rel attribute off a page.

Generators

13 tools

Produce tags, files and markup you can paste straight in.

  • A to Z Free SEO Tools › Generators

    Meta Tag Generator

    Build a complete head block with live length counters.

  • A to Z Free SEO Tools › Generators

    Open Graph Generator

    Write Facebook and LinkedIn share tags correctly.

  • A to Z Free SEO Tools › Generators

    Twitter Card Generator

    Summary and large-image card markup, previewed.

  • A to Z Free SEO Tools › Generators

    Schema Markup Generator

    JSON-LD for Article, FAQ, Product, Local Business and more.

  • A to Z Free SEO Tools › Generators

    XML Sitemap Generator

    Crawl a site and download a ready sitemap.xml.

  • A to Z Free SEO Tools › Generators

    Robots.txt Generator

    Compose crawl rules per bot without syntax mistakes.

  • A to Z Free SEO Tools › Generators

    .htaccess Redirect Generator

    Apache redirect, HTTPS, WWW and caching rules.

  • A to Z Free SEO Tools › Generators

    SERP Snippet Preview

    See how a result looks on desktop and mobile before you publish.

  • A to Z Free SEO Tools › Generators

    UTM Campaign Builder

    Tagged campaign URLs that stay consistent.

  • A to Z Free SEO Tools › Generators

    QR Code Generator

    Download a PNG or SVG QR code for any link.

  • A to Z Free SEO Tools › Generators

    URL Slug Generator

    Turn a headline into a clean, short slug.

  • A to Z Free SEO Tools › Generators

    Lorem Ipsum Generator

    Placeholder copy by paragraph, sentence or word.

  • A to Z Free SEO Tools › Generators

    Password Generator

    Strong random passwords, generated in your browser.

Keywords

5 tools

Find what people actually type into search.

  • A to Z Free SEO Tools › Keywords

    Keyword Generator

    Real autocomplete suggestions from live search data.

  • A to Z Free SEO Tools › Keywords

    Long-Tail Keyword Generator

    A-to-Z expansion for low-competition phrases.

  • A to Z Free SEO Tools › Keywords

    Hashtag Generator

    Platform-tuned hashtag sets for Instagram, TikTok and X.

  • A to Z Free SEO Tools › Keywords

    YouTube Tags Generator

    Build a 500-character tag block from your video title.

  • A to Z Free SEO Tools › Keywords

    Keyword Grouper

    Cluster a messy keyword list into topic groups.

Domain & server

8 tools

Look under the hood of any hostname.

  • A to Z Free SEO Tools › Domain & server

    DA PA Checker

    Domain Authority and Page Authority for any URL.

  • A to Z Free SEO Tools › Domain & server

    Backlink Checker

    Referring domains and top linking pages.

  • A to Z Free SEO Tools › Domain & server

    WHOIS Lookup

    Registrar, dates, status and nameservers via RDAP.

  • A to Z Free SEO Tools › Domain & server

    Domain Age Checker

    How old a domain is, to the day.

  • A to Z Free SEO Tools › Domain & server

    DNS Records Lookup

    A, AAAA, MX, NS, TXT, SOA and CNAME in one view.

  • A to Z Free SEO Tools › Domain & server

    IP Address Lookup

    Resolve a domain to an IP, or geolocate an address.

  • A to Z Free SEO Tools › Domain & server

    SSL Certificate Checker

    Issuer, validity window and days until expiry.

  • A to Z Free SEO Tools › Domain & server

    Hosting Checker

    Find who hosts a site and what server it runs.

Content & text

7 tools

Shape copy before it ships.

  • A to Z Free SEO Tools › Content & text

    Word Counter

    Words, characters, sentences, paragraphs, reading grade.

  • A to Z Free SEO Tools › Content & text

    Case Converter

    Sentence, title, upper, lower, camel, kebab and snake case.

  • A to Z Free SEO Tools › Content & text

    Text Compare

    Line-by-line diff between two blocks of text.

  • A to Z Free SEO Tools › Content & text

    URL Encoder / Decoder

    Percent-encode or decode any string.

  • A to Z Free SEO Tools › Content & text

    Base64 Encoder / Decoder

    Convert text to Base64 and back, including URL-safe.

  • A to Z Free SEO Tools › Content & text

    Hash Generator

    MD5, SHA-1, SHA-256 and SHA-512 checksums.

  • A to Z Free SEO Tools › Content & text

    Reading Time Calculator

    Estimate reading and speaking time for a draft.

Social & video

4 tools

Metadata and assets for the platforms.

Calculators

3 tools

Sanity-check the numbers.

What this site is for

Most SEO work is a sequence of small checks. Is the title the right length? Did that redirect chain grow a third hop? Does the sitemap still list the pages you deleted in March? Those questions each take twenty seconds to answer and an afternoon to hunt down a tool for.

Everything here runs in the browser or straight from our server, returns a plain answer, and lets you copy or download the result. Nothing asks you to register to see the second half of the output.

How the tools are grouped

Accuracy, and where it stops

The analysis tools read the live HTML a server returns, so they see exactly what a crawler sees on a first request. They do not execute JavaScript. If your content is rendered client-side, expect the word counts and heading lists to look thin here, and treat that as useful information rather than a bug: many crawlers have the same limitation on first pass.

Authority metrics such as Domain Authority are third-party estimates from Moz, not figures published by Google. They are useful for comparing sites against each other, not as an absolute measure of anything.