Readability Analyzer

Score your writing using Flesch-Kincaid and other industry-standard readability metrics.

What it does

Readability Analyzer evaluates your text and returns scores across four readability scales, plus average words per sentence and average syllables per word. It reports the numbers — interpreting what to change is up to you; the tool doesn't generate written suggestions or flag specific sentences. See Readability Formulas Explained for what these scores actually measure (and don't) before you over-trust a single number.

How to use

1. Open Readability Analyzer from the Text & Writing panel.
2. Paste or type your text (a minimum of 10 words is required for any score; 100+ words gives a more stable result).
3. View scores across Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, and SMOG Index, along with average words per sentence and average syllables per word.
4. Use the reference table below to judge whether your score fits your target audience, and edit your text accordingly — the tool shows numbers, not rewritten suggestions.

Readability scales explained

| Scale | Range | Ideal result | | :------------------- | :---- | :------------------------ | | Flesch Reading Ease | 0–100 | 60–70 (easy general text) | | Flesch-Kincaid Grade | 0–18+ | 6–8 for web content | | Gunning Fog Index | 0–20+ | Under 12 for business | | SMOG Index | 0–20+ | Under 10 |

Common use cases

• Check whether a blog post or landing page scores in the readable range for a general audience (target grade 7–8).
• Get an overall complexity score for a contract or policy draft before sending it out — the tool scores the whole text, not individual clauses.
• Check whether a paper or report's complexity fits its target journal or institution's expectations.
• Spot-check error messages, tooltips, and onboarding copy for readability before shipping.

FAQ

How many words do I need for accurate results?

A minimum of 100 words is recommended. Short texts produce less reliable scores.

Does it work for languages other than English?

The current scoring algorithms are calibrated for English text. Results for other languages may not be meaningful.

Is the text uploaded?

No. All analysis runs locally in your browser.

Privacy

Readability analysis runs 100 % client-side. No text is sent to external servers.