SEO Tools

Content Readability Analyzer

Measure readability with Flesch, Flesch-Kincaid, Gunning Fog, and ARI scores while spotting long sentences and complex wording before publishing.

📝 Content Input

Paste Your Content

💡 About this tool:
• Calculates Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, and Automated Readability Index
• Highlights sentence complexity, syllable load, and long sentences
• Generates actionable recommendations to improve readability and SEO engagement
• Runs entirely in your browser — your content never leaves this page

Paste your content above to unlock readability insights.

📈 Readability Analysis Results

Flesch Reading Ease

Very Difficult

Flesch-Kincaid Grade

Grade Level

Gunning Fog Index

Years of Education

Automated Readability Index

Grade Level

📊 Content Metrics

Total Words

Sentences

Avg Words / Sentence

Total Syllables

Avg Syllables / Word

Complex Words

Flesch Reading Ease Score

Scores range from 0-100; higher numbers mean easier-to-read text. Aim for 60+ for most public-facing content.

90-100 Very easy (5th grade)

80-89 Easy (6th grade)

70-79 Fairly easy (7th grade)

60-69 Standard (8th-9th grade)

50-59 Fairly difficult (10th-12th grade)

30-49 Difficult (college)

0-29 Very difficult (graduate)

Flesch-Kincaid Grade Level

Indicates the U.S. school grade needed to understand the text. For broad audiences, target grade levels 8-9.

Gunning Fog Index

Estimates years of education required on first read. Scores consider sentence length and complex words (3+ syllables).

Automated Readability Index (ARI)

Uses characters per word and words per sentence to align with U.S. grade levels.

🎯 Optimization Recommendations

⚠️ Long & Complex Sentences

Sentences highlighted below may reduce readability. Aim for most sentences to stay below 20-25 words.