Loading pageLoading content.
Analyze text readability with Flesch Reading Ease, Flesch-Kincaid Grade Level, and Gunning Fog Index scores.
📖
Paste text on the left to see readability scores.
Type or paste the text you want to analyze into the input area.
The Flesch Reading Ease, Flesch-Kincaid Grade Level, and Gunning Fog Index are calculated instantly.
Aim for shorter sentences and simpler words to improve readability scores.
Readability scores estimate how easy a piece of writing is to understand. This tool analyzes your text and reports several well-known measures, including the Flesch Reading Ease, the Flesch-Kincaid Grade Level, and the Gunning Fog Index, so you can see whether your writing matches your audience.
Paste your text and the scores update instantly, along with the sentence and word statistics behind them. It is useful for writers, marketers, teachers, and anyone who wants their content to be clear rather than dense.
Flesch Reading Ease runs from 0 to 100, where higher is easier. Scores of 60 to 70 are comfortable for most adults, while below 30 is hard going. The Flesch-Kincaid Grade Level and the Gunning Fog Index both estimate the US school grade needed to follow the text, so a grade of 8 means a typical 13 to 14 year old could read it.
Two things drive most readability formulas: long sentences and long words. A sentence that runs on forces the reader to hold more in mind, and words with many syllables take more effort. Shortening sentences and choosing simpler words is the fastest way to improve a score without losing meaning.
For general web content and marketing, aiming for a Flesch Reading Ease around 60 to 70, or a grade level of about 7 to 9, keeps writing accessible to a wide audience. Technical or academic material can sit higher, but if you want broad reach, lower is usually better. Use the score as a guide, not a strict target.
Word Counter
Count words, characters, sentences, paragraphs, and estimate reading time instantly.
Color Contrast Checker
Check WCAG AA and AAA contrast ratios between two colors to ensure your design meets accessibility standards.
Diff Checker
Compare two texts and highlight added, removed, and unchanged lines instantly.
Grammar Checker
Check grammar, spelling, punctuation, and style issues with suggestions powered by LanguageTool.
Credit Card Validator
Validate credit card numbers using the Luhn algorithm.
CSS Validator
Validate CSS syntax and find common errors like unmatched braces and missing semicolons.