Text Readability Checker
Measure the readability of your text using Flesch scoring.
What is Readability Checker?
A Readability Checker analyzes your text and calculates how easy it is to read and understand. It applies established linguistic formulas — most notably the Flesch Reading Ease score and the Flesch-Kincaid Grade Level — to give you a numerical measure of your content's complexity. The Flesch Reading Ease score ranges from 0 to 100, where higher scores mean easier reading. A score of 60–70 is suitable for general audiences, while scores above 80 are appropriate for children or casual readers.
The tool evaluates sentence length, word length, syllable count, and vocabulary complexity to produce its scores. It also typically identifies difficult sentences, flags overly long passages, and suggests simpler alternatives. These metrics directly affect user engagement and SEO performance: Google's algorithms favor content that matches the reading level of the intended audience, and readers who find content too complex will bounce quickly.
Bloggers, technical writers, educators, marketers, and UX writers use readability checkers to refine their writing before publication. Academic researchers use them to ensure papers are appropriately complex for their audience. Anyone who communicates through text can benefit from objective feedback about how their writing is perceived by readers of different education levels.
How to Use Readability Checker
- 1Step 1: Paste or type the text you want to evaluate into the input field — this can be a full article, a single paragraph, or any block of written content.
- 2Step 2: Click the Analyze button to run the readability formulas against your text and generate the Flesch Reading Ease score and grade level estimate.
- 3Step 3: Interpret your Flesch score — 90-100 is very easy (5th grade), 60-70 is standard (8th-9th grade), and below 30 is very difficult (college graduate level).
- 4Step 4: Review highlighted sentences or paragraphs the tool flags as too long or complex, and rewrite them using shorter sentences and simpler vocabulary.
- 5Step 5: Re-paste your revised text and re-run the analysis to confirm your edits improved the score before finalizing your content for publication.
Benefits of Using Readability Checker
- ✓Match Your Audience: Know exactly what reading level your content targets so you can align complexity with your audience — whether they are 5th graders or PhD researchers.
- ✓Reduce Bounce Rates: Content that is easy to read keeps visitors engaged longer, directly improving time-on-page metrics and reducing bounce rates that affect SEO rankings.
- ✓Boost SEO Performance: Google rewards content that provides clear value to users; readable, well-structured text signals quality and improves organic search visibility.
- ✓Improve Writing Quality: Objective readability scores provide feedback that subjective proofreading misses, pushing writers to use active voice, shorter sentences, and plainer words.
- ✓Save Editing Time: Instantly pinpoint which specific sentences are dragging down your score, rather than re-reading entire documents searching for complexity problems.
- ✓Meet Accessibility Standards: Many government and healthcare communication guidelines require content at a 6th to 8th grade reading level to ensure broad public accessibility.
Example
About Readability Checker
Readability Checker scores your text using industry-standard formulas including Flesch Reading Ease, Flesch-Kincaid Grade Level, and Gunning Fog Index. It identifies complex sentences and suggests simplifications. Content with high readability scores tends to rank better and engage more readers.
- Flesch, Kincaid, Gunning Fog scores
- Grade level equivalent
- Complex sentence highlighting
- Readability improvement tips