Readability Checker
Paste your draft to get its Flesch Reading Ease score, Flesch-Kincaid grade level, and the sentence and syllable averages behind them. Most web content should land between a 6th and 12th grade reading level.
Free, no signup, and everything runs in your browser.
Written for people, checked automatically.
InkSTR targets a 6th to 12th grade reading level on every article and blocks the clinical vocabulary that pushes content out of that band, without flattening it into something that reads like a manual.
Common questions
About readability checker.
More free tools
No signup on any of them.
URL Slug Generator
Turn any title into a clean, safe URL slug.
ExploreMeta Tag and Open Graph Generator
Generate the full head block: meta, Open Graph, and Twitter cards.
ExploreSchema Markup Generator
JSON-LD for vacation rentals, local businesses, FAQs, articles, and breadcrumbs.
Explore
Stop doing this by hand every week.
InkSTR researches the keywords, writes the articles, and publishes them to your site on a schedule.
3 free articles · No credit card required
Paste at least a paragraph. Scores on a single sentence are unreliable.
Flesch Reading Ease
62.8
Plain English (8th to 9th grade)
Grade level
7.7
Inside the 6-12 target band
Words
51
Avg words / sentence
12.8
Avg syllables / word
1.55
This sits in the 6th to 12th grade band most web content should target. Readers can scan it without effort and AI answer engines can extract clean passages from it.
Syllables are counted by the standard vowel-group approximation rather than a dictionary, so individual words can be off by one. Across a full passage the errors average out, which is why these scores are only meaningful over a paragraph or more.