Readability Checker — free online tool

Flesch Reading Ease and grade-level hints help editors tune blog posts for their target audience.

Useful when you want a quick answer without pasting sensitive data into random chat bots.

How to use Readability Checker

Paste blog or essay text into Readability Checker.
Calculate Flesch Reading Ease and grade-level style scores.
Simplify long sentences if the grade level is higher than your audience.
Re-run after edits to compare before/after scores.

Practical tips

Target a grade level that matches your audience—simpler for general readers, higher for technical docs.
Shorten sentences and swap long words to lift the Flesch score quickly.
Use it as a guide, not a rule; some topics need precise, longer terminology.

Limitations

Readability Checker runs on text in your tab only—there is no cloud save, version history, or collaboration. Copy results before closing the page.

Privacy & data

We do not run a database on this static site. Text and generated output exist only in your tab until you close or refresh the page.

Frequently asked questions about Readability Checker

Is the Readability Checker free on Webtoolshop?

Yes. There is no sign-in and no paywall on this page. We may show advertising on some layouts to cover hosting.

Can I use the Readability Checker on a phone?

Yes for light tasks. Very long pasted text, huge images, or multi-megabyte PDFs are easier on a laptop with more memory.

Why did the Readability Checker fail or look wrong?

Try a smaller file, fewer pasted characters, or an updated browser. Extensions that block scripts or downloads sometimes interfere—test in a private window if results never appear.

Does Webtoolshop store text I paste into the Readability Checker?

We do not run a database on this static site. Text and generated output exist only in your tab until you close or refresh the page.