Text Readability Test
Test How Easy Your Writing Is to Read
Need to use Text Readability Test right now?
An objective structural score — sentence length and word complexity — instead of guessing at your own writing's readability.
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Flesch Reading Ease score
Features
- Runs entirely in your browser
- Privacy-first — your data is never uploaded
- Real-time, instant results
- 100% free, no sign-up required
- Works on desktop, tablet, and mobile
- No installation needed
Who uses this tool?
About Text Readability Test
The Flesch Reading Ease test is one of the oldest and most widely used readability formulas, scoring text from 0 to 100 based on average sentence length and syllables per word — higher scores mean easier reading. It's the same underlying formula Microsoft Word's readability statistics and many content tools use, calculated here entirely client-side using the standard published formula.
Paste in any text and get an instant score along with a plain-language label (Very Easy through Very Difficult) and an approximate U.S. grade level using the companion Flesch-Kincaid Grade Level formula. Both formulas are computed from the same underlying counts: total words, sentences, and syllables, estimated using a standard vowel-cluster syllable-counting heuristic.
This is useful for writers checking whether a piece matches its intended audience — marketing copy generally reads best around the 60-70 range (roughly 8th-9th grade level), while academic or technical writing can reasonably sit lower. Syllable counting is a heuristic estimate, not a dictionary lookup, so treat the exact number as a close approximation rather than a perfectly precise count.
How it works
- Paste your text. Any article, email, or piece of copy.
- Read the Flesch score. See your score and plain-language difficulty label.
- Check grade level. An approximate U.S. school grade level equivalent.
Examples
Checking marketing copy
Input
A 200-word product description
Output
Flesch score: 68 (Standard), Grade level: 7.2