Readability Checker
Readability score
Flesch-Kincaid grade level.
How to use Readability Checker
- Paste your text.
- The tool calculates standard readability scores (like Flesch-Kincaid) and an estimated grade level.
- Use this to check whether your writing matches your intended audience — simplify if the score is too high for general readers.
About this tool
Readability Checker is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Text & Writing Tools. Browse more Text & Writing Tools tools.