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Free tools

SEO tools, marketing calculators and content helpers

Everything here runs instantly in your browser, with no sign-up. The calculators are pure maths; the content tools give instant drafts, with optional AI refinement when the site owner enables it.

SEO tools

Check titles and descriptions, preview snippets, and generate robots.txt, canonical, hreflang and UTM markup.

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Meta Title Length CheckerCheck your page title length in characters and approximate pixels before it is cut off in…
Meta Description Length CheckerCount characters and pixels in your meta description and see how it may look on desktop…
SERP Snippet Preview ToolPreview how your title, URL and description may appear in Google search results on desktop and…
Keyword Density CalculatorPaste your text and see how often each word and phrase appears, as a count and…
Keyword Combination GeneratorCombine lists of prefixes, core terms and modifiers into every keyword variation in one click.
Robots.txt GeneratorBuild a clean robots.txt file with crawl rules, a sitemap line and common presets for WordPress…
XML Sitemap ValidatorPaste a sitemap and check its structure, URL count, duplicate URLs, protocol and size limits.
Canonical Tag GeneratorGenerate a correct rel=canonical tag, HTTP header and WordPress snippet for any URL.
Hreflang Tag GeneratorCreate hreflang link tags for multilingual and multi-region pages, including x-default.
Redirect Code Reference ToolLook up 301, 302, 307, 308 and other HTTP status codes with SEO guidance and server…
UTM URL BuilderAdd UTM campaign parameters to any link and copy a clean, correctly encoded URL.
Open Graph Preview HelperPreview how a link may look when shared on Facebook, LinkedIn and X, and copy the…

Marketing calculators

CTR, conversion rate, CPC, CPM, CPA, ROAS, ROI and budget calculators with worked examples.

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CTR CalculatorCalculate click-through rate from clicks and impressions, or work back to the clicks you need.
Conversion Rate CalculatorWork out conversion rate, the visitors needed for a goal, and the effect of an improvement.
CPC CalculatorCalculate cost per click from spend and clicks, or estimate spend and clicks from a target…
CPM CalculatorCalculate cost per thousand impressions and the impressions or spend that follow from it.
CPA CalculatorCalculate cost per acquisition and check whether it fits your target and margins.
ROAS CalculatorCalculate return on ad spend, the break-even ROAS for your margin, and the revenue a budget…
ROI CalculatorCalculate return on investment for marketing campaigns, with net profit and payback.
Marketing Budget CalculatorEstimate a marketing budget from revenue and see an editable split across channels.
Email Open & Click Rate CalculatorCalculate open rate, click rate, click-to-open rate, unsubscribe and bounce rates for a campaign.
Website Engagement & Lead Conversion CalculatorModel the funnel from visitors to leads to customers, with engagement rate, cost per lead and…

Content & AI tools

Title, outline, FAQ, caption and brief builders. Instant rule-based drafts, with optional AI refinement.

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Blog Title GeneratorGenerate dozens of blog title ideas from a topic using proven headline formats.
Blog Outline GeneratorCreate a structured blog post outline with H2 and H3 headings for any topic.
Meta Description Drafting AssistantDraft meta descriptions from your page topic and benefit, with live length checking.
FAQ Question GeneratorGenerate the questions readers are likely to ask about a topic, grouped by intent.
Social Media Caption GeneratorCreate caption drafts with hooks, calls to action and hashtags for different platforms.
Keyword Clustering AssistantGroup a keyword list into topic clusters by shared words, so each cluster maps to one…
Content Brief GeneratorProduce a writer-ready content brief with intent, audience, outline, questions and checks.
Blog Readability HelperPaste your draft and see reading level, sentence length, long sentences and passive-voice hints.