Is Your Writing Readable? Get the Score

English only. Scores are approximate: syllables are estimated, so results may differ from other readability tools.

—Flesch Reading Ease
—Flesch–Kincaid grade
—reading level

Private by architecture: this tool runs entirely on your device — nothing you enter is sent anywhere.

Free readability checker for English texts: paste your text and get the Flesch Reading Ease score and the Flesch Kincaid grade level updated while typing, plus a suggestion for improvement. The text is not uploaded.

  • Flesch Reading Ease + FK grade level
  • Live scoring as you edit
  • Plain advice: what to shorten
  • Runs in your browser — text never sent
  • 100% free

Why This Readability Checker Is Different

Free readability checker for English texts: paste your text and get the Flesch Reading Ease score and the Flesch Kincaid grade level updated while typing, plus a suggestion for improvement. The text is not uploaded.

Step by step

How to Use the Free Readability Checker

Paste your draft

Scores appear instantly in your browser, and nothing gets uploaded.

Read the two numbers

Ease 60 to 70 is for the average reader; academic writing often falls into 30 to 50, and that is okay. The FK grade is roughly the years of schooling needed to read it comfortably.

Follow the one-line advice

Two things drive the score: how long your sentences are and how long your words are. The tip tells you which one to work on.

Re-check after editing

Watch your score go up as you break long sentences up into more manageable ones. The Grammar Checker and its clarity corrections work well together to highlight which sentences are too long.

The honest part

100% Free — Here Is Why That Is Sustainable

No server needed: the tool runs as JavaScript in your browser, therefore not costing us anything per use. This is the reason why it's free, and why your grades, notes, or signatures remain on your device.

Long sentences and long words are what drag a Flesch score down, so fix those first: split anything over 25 words, and pick shorter words where you can.

2standard scores: Ease + FK grade
0text sent anywhere — local math
$0free, live, no signup
In practice

The Readability Checker in Real Student Life

How it works

Readability score as you type

As you type in your text, two values will be shown: Flesch Reading Ease (between 0 and 100) and Flesch Kincaid Grade Level.

The values shown will keep updating as you make changes to your text. You'll also see a single line of advice telling you what is pulling your readability score down.

Reading ease

Flesch reading ease, explained

The values range from 0 to 100 for the flesch reading ease, where the higher value indicates easy to read. A value between 60 and 70 is recommended for a general audience, whereas 30 to 50 is common for academic papers.

This flesch reading ease calculator applies the published Flesch formulas, so it doubles as a readability calculator and a readability test for any English draft.

Grade level

Flesch Kincaid grade level checker

The flesch kincaid grade level is the grade level required to comprehend the text. For example, a score of 8 indicates that the text can be easily understood by students in grade 8, while a score of 12 and above represents the college level.

As a grade level checker and reading level checker, it helps you check reading level of text before submitting your document. It is a flesch kincaid calculator in one click.

Improve

How to improve readability fast

How to improve readability: split long sentences (longer than 25 words) and replace any long words with short words.

This will have the most effect on the Flesch Kincaid score, and you can watch your text readability increase.

Free and private

A readability analyzer with no upload

This readability analyzer and readability score checker works in your browser, and hence there is no sending of any text to another location. The scores can be considered approximate, because the syllable counts are estimated and could vary a little from other online tools.

Is it the best readability checker? It is a free readability test tool and readability checker website, with no readability checker app to install.

Feel vs number

Why not just reread it?

It is impossible for one to judge the difficulty level of their own writing. The score provides a good benchmark that will never fatigue, and it tells you which lever to move: words or sentences.

This is more just a guideline. Some topics and subjects will require longer words and you won't be able to shorten them no matter how hard you try.

Who checks

Everyday users of this tool

Students reducing an essay into simpler language; writers writing for an average person; teachers making sure that the reading materials are appropriate for their students.

If something goes wrong

Three fixes that solve most problems

  • No score appears. The formulas will require words in English. Just numbers, punctuation or emojis will earn a short note instead of a score.
  • The score differs from Word. Our syllable counts are estimates. A few points' difference from Word is normal.
  • My text is not in English. The Flesch formulas only work for English. For other scripts the page shows a warning rather than a misleading score.
Terms worth knowing

The vocabulary around readability checkers

  • Flesch Reading Ease — A 0–100 score where higher means easier; 60–70 suits general readers.
  • Flesch–Kincaid grade level — The US school grade that would be necessary to comprehend the text without difficulty; the most successful nonfiction sits at 7 to 9.
  • Average sentence length — The first of two variables in both calculations; any sentence exceeding 25 words is potentially split.
  • Syllables per word — The second input: short words raise the score more reliably than short sentences alone.
Also searched as

Same tool, many names

No matter how you expressed yourself, this is your page: one fast readability checker that respects both your time and your privacy, not 12 poor clones lying around the web. Feel free to bookmark it by any name you choose:

readability checkerreadability scoreflesch kincaidflesch reading easereading level checkerreadability testgrade level checkerreadability calculator
Is it really free, with no catch?

Of course: no registration, no watermark and no daily paywall. It will still be here next semester.

One page for each job is deliberate. Near-identical pages for every wording are standard SEO, and they're the reason looking for a basic tool is a slog. We'd rather build one good page that's quick, complete and upfront about what it can't do.

This is why the navigation above links to complete tool names and not cute nicknames: when your next job comes around, you will know where to go by reading, not guessing. The whole set is designed for someone in a rush who has never seen it before, and on a deadline, that is all of us.

Good to know

Readability Checker FAQ

60 to 70 for a general audience, 50 to 60 for an educated audience, 30 to 50 is the average for academic writing. Below 30 means very dense: good for law reviews but scary on a blog.

Estimated grade level required for adequate reading of the text: 8 indicates an eighth-grade reading level; 12+ indicates college-level density. The most successful nonfiction is at 7 to 9.

From two ratios: average words per sentence and average syllables per word, as in the Flesch formulas. Because syllables are estimated, expect small differences from Word or dictionary-based tools.

No. The readability tools analyze the text within your web browser; hence, your text will not be transmitted anywhere. Therefore, you can use your unpublished manuscript, client’s document, or any other sensitive information and obtain the scores.

Long sentences and long words are what drag a Flesch score down, so fix those first: split anything over 25 words, and pick shorter words where you can.

Tool and page last updated: October 2026.