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Readability Checker

Paste your text for a Flesch Reading Ease score, grade level and reading time, with long sentences, passive voice and hard words highlighted so you know exactly what to fix.

Built and maintained by Nouman Sabir AI search & SEO specialist Updated October 2026

  • 100% free
  • No sign-up
  • Runs in your browser, nothing is stored

Flesch Reading Ease

54

Fairly hard. Aim for 60+

Grade level

10.6

Aim for 7 to 9

Words per sentence

19.8

Aim for under 20

Reading time

1 min

79 words

Sentence by sentence

Long (25+ words) Passive voice

Our licensed plumbers fix leaks, burst pipes and water heaters across Austin. Most jobs are finished the same day. You get a written price before any work starts, and every repair is backed by a one-year warranty. If you have a plumbing emergency at night, call us and a technician will be dispatched to your address in under an hour, which is considerably faster than the response times typically offered by larger regional plumbing companies operating in the area.

Long words to simplify: emergency, considerably, typically, operating

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How to use the Readability Checker

  1. 1

    Paste your page copy or draft.

  2. 2

    Check the score and grade level.

  3. 3

    Shorten the highlighted sentences and swap hard words for plain ones.

Why readability matters for SEO and AI

Clear writing keeps visitors reading, and it's easier for Google and AI assistants to extract and quote. Short sentences with one idea each are exactly the kind of passage that ends up in answers.

Targets that work for most sites

Aim for these on service and product pages:

  • Flesch Reading Ease of 60 or higher
  • Grade level around 7 to 9
  • Average sentence length under 20 words
  • Active voice for instructions and claims

Frequently asked questions

What is a good Flesch score?

60 to 70 is plain English that most adults read easily. Technical B2B content can sit a little lower.

Is readability a ranking factor?

Not directly, but clear pages tend to engage visitors and get quoted, which helps.

How is the score calculated?

Flesch Reading Ease uses average sentence length and syllables per word. Syllables are estimated, so treat scores as a guide.

Is my text stored?

No. Everything runs in your browser.

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