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Content Gap Analyser
Compares your content against a competitor's and lists the terms and subtopics they cover that you do not.
SEO
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Free, unlimited
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In short
Content Gap Analyser is a free online tool on inputtesthub.com that compares your content against a competitor's and lists the terms and subtopics they cover that you do not. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.
How to use the Content Gap Analyser
- Paste the original text into the first box.
- Paste the version you want to compare into the second box.
- Differences are highlighted immediately, line by line and word by word.
About the Content Gap Analyser
The Content Gap Analyser compares your content against a competitor's and lists the terms and subtopics they cover that you do not. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Finding what to add before republishing a page.
- Briefing a writer on subtopics to cover.
- Understanding why a competitor outranks you.
Frequently asked questions
Is there a limit on how often I can use the Content Gap Analyser?
It is free, with no account, no trial and no daily cap. Every seo tool on inputtesthub.com works the same way: open the page and use it.
Can you see what I put into this utility?
No. The Content Gap Analyser runs entirely in your browser using JavaScript. Because the work happens locally, the utility also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
Who is the Content Gap Analyser for?
The most common reasons people reach for it: finding what to add before republishing a page. Briefing a writer on subtopics to cover. Understanding why a competitor outranks you. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Can I use the Content Gap Analyser on mobile?
Yes. The page is responsive and the utility works in Chrome, Safari, Firefox, Edge and Samsung Internet on both Android and iOS. There is no app to install and nothing to sign into.
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