Readability Checker

What readability scoring measures: Flesch Reading Ease 0 to 100 and Flesch-Kincaid Grade 0 to 18 estimate how hard USA readers work to parse sentences. Higher ease means simpler words, shorter sentences, and fewer syllables, preferred for mobile scanning from Austin commuters to Seattle bus riders. Grade 8 lands for mass B2C, grade 10 to 12 for B2B, and grade 6 for healthcare after 03/10/2026 plain-language rules. The checker tokenizes sentences, words, and syllables locally in seconds without cloud fees.

Why grade level drives conversions and compliance: American shoppers skim at 200 to 250 words per minute, abandoning walls of text that lift bounce rates 18 percent. Clear copy at grade 8 lifts checkout completion for $49 to $199 carts, especially on iPhone checkout in Miami heat. Federal plain-language norms urge grade 8 for public info, and ADA adjacent guidance favors short sentences under 22 words. Publishers targeting 11/28/2026 holiday rush use scores to keep promos scannable across Chicago and Manhattan inboxes.

Interpreting ease, grade, and sentence alerts: Ease 70 to 80 is conversational, like USA news briefs; 50 to 60 is fairly difficult, like legal memos. Grade 8 to 9 suits product pages, 10 to 12 suits whitepapers priced at $0 to $299. The tool flags sentences over 28 words for splitting, passive voice density, and long paragraphs over 4 lines. Aim median 18 words per sentence, one idea per line, and active verbs like shop, compare, and save for Denver to New York shoppers scanning dated 07/15/2026 guides.

Editing workflow that keeps voice intact: Paste draft, note grade and ease, then cut filler, swap $199-tier jargon like synergize for use, and break semicolon chains. Replace However, therefore with But, so, and cap adverbs at one per sentence. Keep brand terms like TheMachoBird and product names verbatim, but shorten surrounding glue words. Re-run after each pass until easy 65 plus and grade 8 to 9 before final QA on 09/01/2026. Preserve headings; score body separate from H1 for accuracy.

Privacy, limits, and next tools: Scoring is local, free instantly offline with no signup required ever, safe for embargoed copy. Formula is heuristic, not a comprehension test, and syllable counts are approximate for names like Austin or Seattle. It does not check grammar, facts, or SEO keywords like title 60 chars. Pair with Word Count, Heading Analyzer, and Meta Tag Analyzer before launch, then A/B test readability variants for USD revenue lift from $500 to $5,000 monthly on evergreen pages.