Paste a chapter and the Scriptorium reads it back to you as signals: readability grade, sentence rhythm and length variety, passive-voice sentences, intensifiers like “very” and “really,” overused words, phrases that could be simpler, clichés, and sentence fragments. Everything runs in your browser — your draft is never uploaded or stored anywhere.
It is a diagnostic bench, not an autocorrect: it shows you where the prose sags and leaves the fixing to you. Free, no sign-up.