ReadabilityTool
API—OSS—FREE—DOCS2/5
RE5.0#18 of 25
outWeb—Windows—Mac—Linux—Android—iOS
Ranked in Readability Checkers ·Free plan
About
ReadabilityTool is ranked #18 of 25 in readability checkers on Inferse. It runs on Web. There is a free plan.
Compared on readability checkers
- Free plan
- Yesreadabilitytool.com
- Readability formulas
- 6 formulasreadabilitytool.com
- Sentence analysis
- Yesreadabilitytool.com
- Clarity recommendations
- Yesreadabilitytool.com
Facts
- Purpose
- ReadabilityTool analyzes pasted text and reports readability scores, text statistics, and plain-language observations about complexity.readabilitytool.com · 5 Oct 2026
- Six formulas
- It provides Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, SMOG, Coleman-Liau, and Automated Readability Index scores.readabilitytool.com · 5 Oct 2026
- Text breakdown
- Results include word count, sentence count, average sentence length, and estimated reading time.readabilitytool.com · 5 Oct 2026
- Complexity feedback
- The Breakdown panel gives observations about sentence length and vocabulary complexity.readabilitytool.com · 5 Oct 2026
- Browser processing
- The site says text is processed in the browser using JavaScript and is never sent to a server, stored, or shared with third parties.readabilitytool.com · 5 Oct 2026
- No account required
- The tool requires no account and no software installation.readabilitytool.com · 5 Oct 2026
- Free use
- The site says all six formulas are available at no cost, with no subscription and no limit on how much text users can analyze.readabilitytool.com · 5 Oct 2026
- Intended users
- The site describes use by bloggers and content writers, students and educators, healthcare professionals, legal and business writers, SEO and marketing professionals, and technical writers.readabilitytool.com · 5 Oct 2026
- SMOG limitation
- The site says the SMOG Index requires at least 30 sentences for accuracy.readabilitytool.com · 5 Oct 2026
- Healthcare guidance
- The healthcare page says patient-facing materials should target Grade 6 or below and identifies SMOG as a health communications formula.readabilitytool.com · 5 Oct 2026
- SEO guidance
- The SEO page recommends Flesch Reading Ease scores of 60–70 and Flesch-Kincaid Grade Levels of 7–9 for blog posts and articles.readabilitytool.com · 5 Oct 2026
Best ReadabilityTool alternatives
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Where it ranks on Inferse
- Best Readability Checkers in 2026#18 of 25
Sources
- readabilitytool.com/about/· checked 5 Oct 2026
- readabilitytool.com/healthcare/· checked 5 Oct 2026
- readabilitytool.com/seo/· checked 5 Oct 2026