Understand your text before you publish it.
Check word count, reading time, readability score, and estimated reading level instantly — now with sentence highlighting.
Reading Ease and Flesch-Kincaid Grade Level use sentence length and estimated syllables per word. Reading time is rounded up using a 200-words-per-minute estimate. These metrics are editing aids and do not guarantee search rankings.
The Highlights view marks very hard sentences (red, over 32 words), long sentences (yellow, over 22 words), complex words of three or more syllables (purple underline), passive constructions (green), and adverbs ending in -ly (blue underline) directly in your text.
Frequently asked questions
What does the reading ease score mean?
Higher scores generally indicate easier reading. Lower scores usually indicate denser or more complex writing.
How is the reading level calculated?
The estimated grade level uses the Flesch-Kincaid formula, based mainly on sentence length and estimated syllables per word.
How is reading time calculated?
Reading time is estimated at 200 words per minute and rounded up to the nearest minute.
Is my text uploaded or stored?
This version analyzes text directly in your browser and does not intentionally send your draft to a ChronoLedger server.
Does a better readability score guarantee better SEO?
No. Readability can support comprehension, but rankings also depend on search intent, content quality, originality, links, authority, and technical SEO.
What do the highlight colors mean?
Red marks very hard sentences (over 32 words), yellow marks long sentences (over 22 words), purple underlines mark complex words of three or more syllables, green marks passive voice, and blue underlines mark adverbs. They are suggestions, not errors — break the rules when your audience needs you to.
Check readability before you publish
ChronoLedger is a free readability analyzer and word counter built for writers, students, and editors. Paste your draft and instantly see word count, character count, sentence count, estimated reading time, Flesch Reading Ease score, and Flesch-Kincaid grade level — all computed privately in your browser, so your text never leaves your device.
Why does readability matter? Dense sentences and heavy vocabulary quietly push readers away, whether you are writing a blog post, an essay, or product copy. A quick readability check before you publish helps you spot the exact sentences dragging your score down, so you can fix them in minutes instead of guessing.
ChronoLedger also publishes in-depth, plain-English guides on the metrics behind the numbers. Start with the most-read guides: What Is a Flesch Reading Ease Score?, How to Cut 100 Words From Your Essay Without Losing Meaning, and What a Punctuation Checker Catches, and What It Misses — or browse all writing guides.