SEO Tools – Test Tools

18 tools in this category

Content Uniqueness Analyzer

Measure internal repetition and lexical variety in your own text

Keyword Density Checker

Analyze keyword occurrences and percentages

Meta Tag Generator

Generate HTML meta tags for SEO and OpenGraph

Robots.txt Builder

Create customized robots.txt files for search engines

XML Sitemap Generator

Generate XML sitemap structure for search indexers

Page Speed Auditor

Analyze web page load times and performance scores

Meta Tag Analyzer

Extract and inspect meta tags from URL or HTML

Robots.txt Tester

Validate URL paths against custom robots.txt rules

Keyword Research Tool

Find relevant target keywords, volume & CPC metrics

Heading Structure Analyzer

Audit H1-H6 heading hierarchy for SEO optimization

Canonical URL Tag Checker

Audit rel=canonical tags to prevent duplicate content penalties

Open Graph Previewer

Preview Facebook Open Graph, Twitter Cards, and image metadata

SERP Snippet Simulator

Live preview Google Search title tag and meta snippet

URL Decoder

Decode percent-encoded URLs back to readable text

URL Encoder

Percent-encode URLs and query strings safely

Hreflang Tag Generator

Generate reciprocal hreflang tags for a multilingual or multi-regional site.

Schema Markup Generator

Build valid JSON-LD structured data for articles, products, FAQs and more.

UTM Campaign Builder

Build correctly encoded campaign tracking URLs for analytics.

About SEO Tools

Audit, generate and validate the technical SEO signals search engines actually read.

Frequently Asked Questions

What to expect from the SEO Tools on this page.

Do these SEO tools need an API key or account?

No. Every SEO tool here runs in your browser and needs no sign-up. The one exception is the Page Speed Auditor, which queries Google PageSpeed Insights and needs a free API key configured by the site owner.

Is the data these tools report accurate?

The tools report exactly what they can measure from the input you give them — tag lengths, heading structure, keyword frequency, robots directives. They do not estimate ranking difficulty or authority, because those figures come from proprietary datasets no free tool can access honestly.

Can I audit a competitor's page with these?

You can paste a competitor's markup into the analyzers and inspect it. The tools do not fetch remote pages for you, so you will need to view the source yourself first.

Will these tools replace a full SEO platform?

No. They cover on-page checks and generation tasks well. Crawling, rank tracking and backlink analysis need a paid platform with its own index.

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AI Tools

Structured writing generators that draft, restyle and outline copy in your browser.

Image Tools

Compress, convert, crop and edit images without uploading them anywhere.

PDF Tools

Create, inspect and annotate PDF documents entirely on your own device.

Developer Tools

Format, decode, hash and inspect the data formats you work with daily.

CSS Tools

Visual generators for gradients, shadows, layouts and modern CSS features.

Converters

Units, colours, encodings, dates and everyday calculations.

Text Tools

Compare, clean, sort and reshape blocks of text without leaving your browser.