Flesch reading ease and grade level, with what to change
Runs in your browser. Nothing you type is sent anywhere. Updated on 24 Oct 2026.The Flesch reading ease score is driven by two things only: how long your sentences are and how many syllables your words carry. This shows both, the score, the grade level and the single change that moves it most. Most web writing should land between sixty and eighty, which is where a comfortable reader stops noticing the writing at all.
The page opens on Readability.
Paste your draft into Your text.
Read the Flesch reading ease score, its band and the grade level.
Compare Words per sentence and Syllables per word to see which one pulls the score down.
Follow the advice line, which names the change that moves the score most, and paste the revised text to recheck.
This keyword density checker counts the words and phrases in a piece of text, in one, two and three word groups, and shows how often each appears as a count and as a share of the whole. Paste plain text or HTML; tags, scripts and styles are stripped before anything is counted.
Start with the honest part. There is no target density, and there has not been one for well over a decade. Writing to reach a number produces text that reads like it was written to reach a number, and search engines notice that long before a reader does. The counts are useful for one thing: seeing whether a page genuinely covers its subject, and whether the words someone would actually search for appear anywhere on it.
Alongside the counts you get a reading time, and a Flesch reading ease score with its grade level and the two numbers that drive it: words per sentence and syllables per word. Shortening the longest sentences moves the score more than anything else. All of it runs in your browser, so an unpublished draft stays on your device.
The rest of the article, and all 6 questions about Keyword Density and Readability, are on the Keyword Density and Readability page.
There is no good number, and any tool that gives you one is selling something. Google stopped rewarding a target percentage many years ago. Write for the reader, then check here that the subject and its obvious related words appear at all. If a term reads oddly often, that is worth fixing; a percentage is not.
Most web writing should land between 60 and 80, which reads comfortably for a 13 to 15 year old. Below 50 the text is hard work for anyone outside the field. The score depends on only two things: words per sentence and syllables per word, so splitting long sentences moves it fastest.
Yes. The list is shown in full and can be edited, added to or emptied. That matters for technical or non-English text, where a general list throws away the words you are studying. Phrases that begin or end on a stop word are left out of the tables.
Words divided by 200 a minute, which is the usual figure for adults reading on screen. You can change the speed. It ignores images, code blocks and tables, so a technical page takes longer to get through than the number suggests.
Still stuck? Ask about Keyword Density and Readability and anybody who knows can answer. No account needed.
Same job, other tools: Link Preview Checker – Find the missing tag behind a WhatsApp or Slack link with no picture.
On the related tools: .env to JSON Converter – Convert a .env file to a JSON object, with quotes, comments and multi-line values handled · Swagger Viewer – Open a swagger.json or swagger.yaml and browse its endpoints without uploading it.
In the collection SEO Tools.