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A free demo of the Inkbreaker engine

Prose Grade Demo

This is a free demo of the same engine that grades every Inkbreaker exercise and every draft in your editor. Paste a passage and see how the metrics land. The 50 to 5,000 character range is a limit of this demo only. Inside the app, your editor and exercises read pieces of any length. The full product turns these one-off numbers into a practice loop with feedback, exercises, and progress over time.

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Writing type0 / 5000The 5000 character cap is for this demo only. Your editor and exercises in the app have no length limit.Your writing type sets the benchmark. Fiction, screenwriting, and poetry are each graded against different targets.

Paste the same text twice and you'll get the exact same numbers, down to the third decimal. This is measurement, not opinion. Why no AI? Read our approach.

Nothing is saved. No account required.Scored using Flesch-Kincaid · Gunning Fog · Coleman-Liau · Brysbaert (2019)