Readability Analyzer
Instantly analyze your text with 6 readability scoring systems — Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, SMOG, Coleman-Liau, and ARI. Perfect for writers, bloggers, and marketers. Runs entirely in your browser — no upload required.
88 words · 5 sentences · 1 paragraphs
Overall Grade Level
~18th grade — Post-graduate
Complex — best suited for specialists or academic readers.
Readability Scores
Flesch Reading Ease
11.1
Very Confusing
Flesch-Kincaid Grade
16.1
Post-graduate
Gunning Fog Index
20.7
Post-graduate
SMOG Index
17.1
Post-graduate
Coleman-Liau Index
19.7
Post-graduate
Readability Index (ARI)
17.9
Post-graduate
Text Statistics
Longest / Most Complex Sentences
Research in cognitive psychology suggests that the average reader processes text most efficiently when sentences average between fifteen and twenty words.
21 words · 43 syllables
Vocabulary choice plays an equally important role — familiar, everyday words reduce cognitive load and keep readers engaged throughout the document.
20 words · 43 syllables
Writers who craft clear, concise sentences tend to communicate more effectively than those who favor elaborate, multi-clause constructions.
19 words · 37 syllables
Frequently Asked Questions
- Is the Readability Analyzer free?
- Yes, 100% free with no account, no limits, and no watermarks.
- Is my text safe and private?
- All analysis runs entirely in your browser. Your text is never uploaded to any server — it never leaves your device.
- What is the Flesch Reading Ease score?
- Flesch Reading Ease scores text on a 0–100 scale where higher is easier. Scores of 70–100 are easy to read (suitable for most readers), 50–70 is fairly difficult, and below 50 is complex or academic.
- What does the grade level mean?
- Grade level scores (Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, ARI) estimate the US school grade a reader needs to understand the text. Grade 8 means an 8th grader could read it — generally considered ideal for general audiences.
- Why do different scoring systems give different results?
- Each formula weights different factors differently. Flesch-Kincaid and Flesch Reading Ease focus on syllables and sentence length. Gunning Fog counts polysyllabic words. SMOG is optimized for health materials. Coleman-Liau counts letters instead of syllables. All measure complexity but from different angles — the average grade gives the best overall picture.
- What is a good readability score for blog posts?
- For general blog content, aim for a Flesch Reading Ease of 60–70 and a grade level of 7–9. Marketing copy should target even higher ease scores (70+). Technical documentation or academic writing typically scores lower, which is acceptable for specialist audiences.
- Does it work on mobile?
- Yes, it works on all modern browsers including mobile Safari and Chrome on iOS and Android.