Free Readability Checker — Flesch Reading Ease Score

Free Tool — Runs In Your Browser

Free Readability Checker

Paste your text and instantly get your Flesch Reading Ease score, grade level, and reading time. See how easy your content is to read — no signup, no ads.

No Signup Flesch Reading Ease Grade Level 100% Private 100% Free

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💡 Tip: For most web content, aim for a Flesch Reading Ease of 60+ and a grade level of 7–9. Shorter sentences and simpler words are the fastest way to improve your score.

—Reading Ease

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✓ How to read your Flesch Reading Ease score

90–100 — Very easyEasily understood by an average 11-year-old. Great for broad audiences.

60–90 — Plain EnglishThe sweet spot for most web content, blogs and marketing copy.

30–60 — Fairly difficultCollege reading level. Fine for technical or professional audiences.

0–30 — Very difficultUniversity graduate level. Consider shortening sentences and simplifying words.

Official resources Google Helpful Content ↗ Readability Formulas ↗ Rank Math SEO Guide ↗ Plain Language ↗

How it works

How to check readability (free, no signup)

Our free readability checker analyzes your text in 4 simple steps — everything runs locally in your browser.

Paste your content

Drop in your article, blog post or page copy. The live counter shows your word count instantly.

Check readability

Click the button to run five proven readability formulas on your text at once.

Read your scores

See your Flesch Reading Ease, grade level, reading time and complex-word count.

Simplify & improve

Shorten long sentences and swap complex words to raise your score and engage readers.

Readability checker — instant scores

The simplest free readability checker — no signup, real formulas

Hard-to-read content loses readers fast. This tool shows you exactly how readable your writing is using the same proven formulas editors and educators trust — Flesch Reading Ease, Flesch-Kincaid grade level, Gunning Fog, SMOG and ARI.

Everything runs in your browser, so your content is never uploaded or stored. Use it before you publish to make sure your copy is clear, then check keyword usage with our keyword density checker for a complete content review.

✦ No signup, no registration — instant results

✦ Five readability formulas in one click

✦ Flesch Reading Ease with a plain-English verdict

✦ Reading time, sentence and complex-word stats

✦ 100% free and private — nothing uploaded or stored

Readability explained

What is a readability checker and why it matters in 2026

A readability checker measures how easy your writing is to understand, using proven formulas based on sentence length and word complexity. Clear content keeps readers on the page longer, reduces bounce, and reaches a wider audience — all of which support your SEO indirectly.

The best-known measure is the Flesch Reading Ease score, which runs from 0 to 100, where higher means easier. For most websites, plain, scannable writing outperforms dense, jargon-heavy copy. After checking readability, review keyword usage with our keyword density checker so your content reads well and targets the right terms.

Keeps readers engaged and lowers bounce rate
Makes content accessible to a wider audience
Helps AI and search engines parse your content
Improves conversions — clear copy is persuasive copy
Essential for email, landing pages and product descriptions
A quick QA step for writer and AI-generated drafts

Flesch Reading Ease guide

Very easy (11-year-old)90–100

Easy / plain English70–90

Standard web content60–70

Fairly difficult50–60

Difficult (college)30–50

Very difficult (graduate)0–30

Quick ways to improve readability

Shorten long sentencesBig win

Use simpler wordsBig win

Break up long paragraphsHelps

Add subheadings & listsHelps

Cut jargon & fillerBig win

Use active voiceHelps

How to improve your score

How to improve your readability score fast

Improving readability is mostly about two things: shorter sentences and simpler words. Both readability formulas punish long sentences and multi-syllable words heavily, so trimming them is the fastest path to a better score.

Read your text aloud — anywhere you run out of breath, split the sentence. Swap complex words for plain ones ("use" instead of "utilise"), break walls of text into short paragraphs, and add subheadings and lists so readers can scan. Then re-run the check to see your score climb. Pair readable content with a clear meta title and description to win the click too.

Aim for an average of 15–20 words per sentence or fewer
Replace long, complex words with plain alternatives
Keep paragraphs to 2–3 sentences
Add subheadings, bullet lists and white space
Prefer active voice over passive
Re-run the check after edits to confirm improvement

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FAQ

Readability checker — frequently asked questions

Everything you need to know about readability scores and how to improve them.

Yes. This is a 100% free readability checker with no signup and no account. Paste your text and get instant readability scores — no registration, no ads, and no usage limits.

Flesch Reading Ease scores text from 0 to 100. Higher is easier: 60–70 is plain English suitable for most web content, 90–100 is very easy, and below 30 is very difficult, university-level text.

For most websites, aim for a Flesch Reading Ease of 60 or above and a grade level around 7 to 9. Easy-to-read content keeps visitors engaged, reduces bounce, and is easier for a wide audience to understand.

Readability formulas use factors like average sentence length and average syllables per word. Longer sentences and longer words make text harder to read, which lowers the Reading Ease score and raises the grade level.

Grade level tells you the US school grade needed to understand the text. For general web content, a grade level of 7 to 9 is ideal. Technical or academic writing is naturally higher, but simpler is almost always better for a broad audience.

No. All analysis runs locally in your browser using JavaScript. Your text never leaves your device and is never uploaded or stored, so you can safely check unpublished drafts and client content.

Yes. H&U Solutions offers content optimization and SEO copywriting that balances readability with keyword targeting, so your content ranks and reads well. Contact us at hnusolutions.com/contact for a free content audit.

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Free Readability Checker

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How to check readability (free, no signup)

Paste your content

Check readability

Read your scores

Simplify & improve

The simplest free readability checker — no signup, real formulas

What is a readability checker and why it matters in 2026

Flesch Reading Ease guide

Quick ways to improve readability

How to improve your readability score fast

Use all 9 free tools together for maximum SEO impact

Readability checker — frequently asked questions

Need content that reads and ranks?