InputTestHub

Content Readability Optimiser

Scores content readability and highlights the specific sentences and paragraphs making the page hard to read.

SEO Nothing uploaded No sign-up Free, unlimited
SEO tool
Paste something on the left to see the result.
In short Content Readability Optimiser is a free online tool on inputtesthub.com that scores content readability and highlights the specific sentences and paragraphs making the page hard to read. 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 Readability Optimiser

  1. Paste your text into the input box on the left.
  2. Adjust the options above the box if you need a different behaviour.
  3. The converted text appears on the right; press Copy to put it on your clipboard.

About the Content Readability Optimiser

The Content Readability Optimiser scores content readability and highlights the specific sentences and paragraphs making the page hard to read. 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

  • Simplifying copy to a target grade level.
  • Finding the three sentences dragging a score down.
  • Editing to a house style.

Frequently asked questions

Do I need an account to use the Content Readability Optimiser?
There is no cost and no cap. The Content Readability Optimiser is not a demo of a paid product, so nothing is held back or watermarked.
Is the Content Readability Optimiser safe to use with private information?
No. The Content Readability Optimiser runs entirely in your browser using JavaScript. Your input never reaches inputtesthub.com or any third party — open your browser's Network tab while you use it and you will see no request go out.
When would I actually need the Content Readability Optimiser?
Typical uses: simplifying copy to a target grade level. Finding the three sentences dragging a score down. Editing to a house style. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Is there an app version?
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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