Free tool from Inkbreaker
Prose Grade
Paste a passage. See readability, sentence variety, vocabulary density, passive voice, adverb density, and more. Nothing is saved. No account required. The same analysis engine powers every exercise on Inkbreaker.
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What the metrics mean
- Flesch Reading Ease
- A 0 to 100 score. Higher is easier. Most fiction lands between 70 and 85.
- Sentence length standard deviation
- How much your sentence lengths vary. Near zero means every sentence is the same length. Higher means rhythm.
- Type-token ratio
- Unique words divided by total words. Rough measure of vocabulary range.
- Passive voice percent
- Percent of sentences that contain a passive construction. Regex-based, so it misses some edge cases, but directionally reliable.
- Adverb density
- Percent of words ending in -ly that are probably adverbs. High density often signals telling rather than showing.
- Dialogue ratio
- Share of characters inside quotation marks. Computed for fiction. Use the type selector below the text box to enable it.