Readability Checker
Analyse your text with four readability formulas. Find out who can read it and how to improve it.
Suggestions
Flesch Reading Ease Reference
| Score | Level | Reads Like |
|---|---|---|
| 90–100 | Very Easy | 5th grade · comic books |
| 80–90 | Easy | 6th grade · conversational English |
| 70–80 | Fairly Easy | 7th grade |
| 60–70 | Standard | 8th–9th grade · plain English target |
| 50–60 | Fairly Difficult | 10th–12th grade |
| 30–50 | Difficult | College level |
| 0–30 | Very Difficult | Professional / academic |
How to Check Text Readability Online
ToolsPix Readability Checker analyses your text with four industry-standard formulas — Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, and SMOG — directly in your browser. There is no software to install, no account to create, and no text is ever sent to any server.
Why use ToolsPix Readability Checker?
- Completely free with no word-count limits — analyse any length of text.
- All analysis runs locally in your browser using JavaScript — your text never leaves your device.
- Works on Windows, Mac, Linux, iPhone, and Android — anywhere with a modern browser.
- Get four scores at once — Flesch, Flesch-Kincaid, Gunning Fog, and SMOG — plus actionable suggestions to improve clarity.
- No watermarks, no sign-up, and no third-party trackers.
Steps to check readability
Paste or type your text into the input box above and click Check Readability. The tool displays word count, sentence count, syllables, and average sentence length, then shows four readability score cards with an overall verdict and improvement suggestions. Once the page is loaded, the tool also works completely offline.
FAQ
What is the Flesch Reading Ease score?
The Flesch Reading Ease score ranges from 0 to 100. A higher score means easier reading. A score of 60–70 is plain English suitable for most web content, while scores below 30 are very difficult — typical of academic or legal writing.
What is a good readability score for web content?
For a general audience, aim for a Flesch Reading Ease of 60–70 and a Flesch-Kincaid Grade Level of 8 or below. Blog posts and marketing copy work best at Grade 6–8. Technical documentation can be higher, but readability still matters.
How many words do I need for an accurate readability score?
This tool requires at least 10 words, but 100 or more words gives reliable results. Short passages produce inconsistent scores because the algorithms rely on averages across multiple sentences.
What is the Gunning Fog Index?
The Gunning Fog Index estimates the years of formal education needed to understand the text on first reading. A score of 12 is high-school level; above 17 is college-graduate level. Most newspapers target a Fog Index of 10–12.
Does this tool work with non-English text?
The readability formulas are designed for English. While the tool processes any Latin-alphabet text, the syllable-counting heuristic and grade-level results will not be accurate for other languages.