Local · free · no key
Text readability checker
Locate sentence and paragraph lengths in an excerpt and choose a long-sentence review threshold. Statistics provide places to inspect, not a literary-quality grade.
Explore manuscript preparation →Your input stays in this browser tab. Nothing is uploaded or saved automatically. Export a file before refreshing or leaving if you want to keep your work.
Paste an excerpt to begin. Empty text has zero words, sentences and paragraphs.
Calculation rules and limits
Words are Unicode letter/number runs with combining marks; internal apostrophes and hyphens stay within a word. Han characters count individually in Chinese mode; other words use the same rule. Emoji and punctuation are not words. Characters are Unicode code points, so a family emoji may contain several characters; graphemes count visible clusters. Paragraphs are separated by blank lines. Sentence breaks are . ! ? 。！？ or line breaks (an approximate rule, including abbreviations). Positions use 1-based Unicode character offsets and line/column, never byte offsets.
Chinese counting here is not linguistic word segmentation. Sentence splitting is approximate; abbreviations and decimal points may split a sentence. Unicode combining marks count separately as characters but together as visible graphemes. No quality score or reading-grade claim is made.
How to use this tool
- Paste your excerpt and select its counting language.
- Set a sentence-length threshold and inspect located sentences in context.
- Record which flags you keep or revise and why, then copy or export the report.
Original worked example
Input
A seven-sentence taxi excerpt with word lengths 11/41/4/7/19/6/9; review threshold 30.
Output
Sentence 2 is flagged at 41 words. Inspect its attention shifts; retain it or revise it for a stated effect.
Original authored count demonstration. A flag is not a judgment of bad prose.
Check your result
- Did you record language, scope, and threshold?
- Can you explain a revision by reading the sentence rather than citing only its count?
Limits and failure cases
- Browser-local statistics; no text upload is required.
- Sentence boundaries are approximate, especially around abbreviations and unusual punctuation.
- Word counting differs between English token mode and Chinese Han-character mode.
Continue with your material
Your story context · session only
Keep confirmed facts here, then choose what to use in another task. Refreshing or closing this tab clears this memory. Export a file to keep your work. API keys are never included.