Quick answer
The FiftyGPT Readability Checker scores how easy your text is to read, giving a Flesch Reading Ease score, an approximate US grade level, and a flag for overly long sentences. Paste your text to see whether it matches your audience. Free, no sign-up.
How to use the Readability Checker
- Paste the text you want to assess.
- Select Check Readability.
- Read the reading-ease score, approximate grade level, and any long sentences flagged.
- Shorten sentences and simplify wording to hit your target level.
What it flags
- A reading level that is too high for your intended audience.
- Sentences over about 28 words that are hard to follow.
- Overall ease, from "Very easy" to difficult.
What it does not do
Readability scores are formula-based estimates of sentence and word length — they do not judge whether your content is accurate, interesting, or correct. A low grade level does not make weak writing good, so treat the score as one signal, not a verdict.
Why use FiftyGPT's Readability Checker
A clear reading-level check in seconds, free, with your text never stored.
