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01Text & Writing toolClean text
Readability Score
Flesch reading ease and grade level.
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- 1Paste inputAdd the text, code or data.
- 2AdjustChoose formatting or generation options.
- 3RunProcess everything in the browser.
Private by designProcessed on your device where possible.
Works on any deviceDesktop, tablet and mobile browsers.
No installationOpen the page and start working.
Always free coreUse the free plan for everyday tasks.
How to use Readability Score
Choose formatting or generation options.
02Process everything in the browser.
03Copy or download the clean result.
04Your files stay private
Your work is processed locally in your browser where possible and is never added to a Vootkit upload library.
Learn more about privacyReadability scores measure sentence length and syllable count, not clarity. A short sentence full of jargon scores well and communicates nothing — which is worth knowing before optimising for the number.
What Readability Score does
Calculates Flesch Reading Ease and Flesch-Kincaid Grade Level, along with the word, sentence and syllable counts they are derived from.
Both formulas use only two inputs: words per sentence and syllables per word. That simplicity is why they are quick and useful, and also why they can be gamed by chopping sentences in half.
Reading ease scores
| 90–100 | Very easy — around age 11 |
|---|---|
| 60–70 | Plain English — the usual target for general audiences |
| 30–50 | Difficult — academic or technical writing |
| 0–30 | Very difficult — legal and specialist text |
| Grade level | US school grade needed to read it comfortably |
| Common guidance | Aim for grade 8–10 for a general audience |
| What it measures | Sentence and word length only — not clarity or accuracy |
Detailed steps
- Paste your text.
- Read the ease score and grade level together.
- If the score is low, look for long sentences first — they move the number most.
- Then read it aloud, which catches what the formula cannot.
Worth knowing
Improve the score by splitting long sentences, not by replacing precise words with vague ones. The formula rewards short words, so "use" scores better than "utilise" — which is a genuine improvement — but it also rewards "thing" over "deductible", which is not. The score is a prompt to re-read, not a target to hit.
Frequently Asked Questions
What score should I aim for?
Around 60–70 reading ease, or grade 8–10, for a general audience. Technical documentation for specialists can reasonably sit lower. Government and health guidance often targets grade 8 or below, because the cost of being misunderstood is high.
Does a high score mean the writing is good?
No. The formula counts syllables and sentence length; it cannot detect whether the text is accurate, well organised or interesting. Text can score beautifully and still be meaningless.
Why did my score change after I added a heading?
Headings without full stops can be read as part of the following sentence, inflating the words-per-sentence figure. Paste the body text alone for a cleaner reading.
Does readability affect SEO?
Not directly — there is no readability ranking factor. It affects whether people stay and finish, which does matter. Write for the reader and the score generally follows.
Is Readability Score free?
Yes. The Vootkit free plan includes 5 tool runs a day. Upgrade to Vootkit Pro for unlimited daily use, an ad-free workspace and saved workflows.
Are my files uploaded?
No. Readability Score runs entirely in your browser — your file is processed on your own device and never sent to a server. There is nothing for us to store or delete.
Do I need to install anything?
No. Readability Score works in any modern browser on desktop, tablet or phone. Open the page and start.
How often can I use it? Is there a daily limit?
On the free plan you get 5 tool runs a day. When you reach the limit you'll see a prompt to upgrade, and it resets the next day. Vootkit Pro removes the cap entirely for unlimited daily use.
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