A Readability Checker tool is designed to analyze written text and assess its complexity, and clarity. It provides objective metrics, often in the form of a numerical score or a US grade level equivalent, indicating how easy or difficult a piece of writing is to read.
Core Readability Checker Features
Flesch Reading Easescore is usually encapsulated in the range 0-100 with higher numbers indicating better ease of reading. A score between 60 and70 is considered acceptable plain English.
US school grades can be matched to the readability score. An example would be 8.0 which means understood by an eighth grader.
Gunning Fog Index estimates the number of years a person has formally educated school for in order to read a given text at the first attempt—lower numbers indicate better general audience suitability.
SMOG indexmeasure is applied mostly in health and medicine disciplines focusing on complex texts, specifically polysyllabic words.
Automated Readability Index (ARI) and Coleman-Liau Index produce US grade level equivalents as output but are based on character count syllables which makes them faster computationally compared to their counterparts.
In addition to scoring, many sophisticated tools illustrate Long or overly complex sentences marked with yellow or red which contribute negatively to overall readability.