Readability Checker
Estimate how easy your text is to read
Words
Sentences
Grade level
Reading time
Avg words / sentence
Complex words
Readability Checker — Complete Guide & Instructions
MakeCard Readability Checker scores how easy your writing is to read — as you paste text, it computes the Flesch Reading Ease score (0–100), a US-grade reading level, estimated reading time, and supporting stats like words-per-sentence and complex-word percentage. A plain-language verdict (Very Easy to Very Difficult) explains what the number means, so bloggers, students and copywriters can tune their writing for the audience.
How to Use Readability Checker
- 1 Paste an article, essay or paragraph into the text area.
- 2 The stats appear automatically — no button to press.
- 3 Read the verdict label and the Flesch score out of 100.
- 4 Check words, sentences, grade level, reading time, words-per-sentence and complex-word %.
- 5 Edit and re-paste the text to watch the score improve.
Key Features & Capabilities
- Flesch Reading Ease score (0–100) with a color-coded meter.
- US grade-level estimate using the Flesch-Kincaid formula.
- Seven-level verdict from Very Easy to Very Difficult with a plain-English note.
- Stats: words, sentences, grade level, reading time, avg words/sentence, complex-word %.
- Live analysis — results update the moment you paste or edit.
- Fully local — the text never leaves your browser.
Supported Formats & Specifications
| Parameter | Specification |
|---|---|
| Primary Score | Flesch Reading Ease (0–100, higher = easier) |
| Grade Level | Flesch-Kincaid grade estimate |
| Extra Metrics | Words · sentences · reading time · words/sentence · complex words % |
| Reading Speed | Estimated at ~200 words/min |
| Input | Any pasted English text |
Practical Everyday Use Cases
- Checking a blog post hits the ideal web reading level (~grade 7–8).
- Simplifying an essay or assignment to the required readability band.
- Making product copy or emails easy for a broad audience.
- Comparing two drafts to pick the more readable version.
- Auditing documentation so non-experts can follow it.
Pro Tips for Best Results
- For web content, aim for Flesch 60–70+ — that reads comfortably for most adults.
- Shortening sentences lifts your score faster than swapping fancy words.
- Complex-word percentage (3+ syllables) is the biggest driver of a hard score — simplify jargon first.
- Very Easy isn't always the goal — academic and legal audiences expect denser text.
Common Problems & Solutions
Long sentences weigh the score heavily — check words-per-sentence; splitting run-ons often fixes it.
It is a US-school estimate; a grade of 8 means readable by an average 8th-grader, not that it is childish.
The text is empty or has no readable words — paste normal prose.
Privacy & Security
100% Client-Side Execution
Your text is analysed locally in the browser — nothing is uploaded, logged, or stored.
Frequently Asked Questions
Everything you need to know about using Readability Checker
For general web audiences, 60–70 is the sweet spot. 90+ is very easy (an 11-year-old can read it); below 30 is difficult academic-level text.
Using the Flesch-Kincaid formula: it weighs average sentence length and syllables per word to estimate the US school grade needed.
Any word with 3 or more syllables — the percentage of these is a strong predictor of difficulty.
Shorten sentences, replace jargon with plain words, break up long paragraphs, and prefer the active voice — the score updates live as you edit.
No — the analysis runs entirely in your browser; nothing is saved or sent.
Related FreeToolsBazaar Tools
Ready to Use Readability Checker?
100% free, browser-based, and private. No installation, registration, or file upload to external servers required.
Start Using Readability Checker