Why check before, when nothing’s wrong yet
Most students who get flagged aren't cheating, they've written a genuine essay that happens to read as generic in places, often because a grammar pass or a "make this sound better" prompt smoothed a paragraph into the same safe, elevated register that a lot of AI writing defaults to. You can't always hear that in your own writing, you've read it too many times. A check before submission tells you, concretely, whether any part of your essay carries the statistical patterns that make markers or detection software raise an eyebrow, while there's still time to fix it and nothing is on the line yet.
That's a fundamentally calmer place to be than checking after a professor has already raised a concern. You're not defending a grade, you're doing a sanity check on your own work, the same way you'd proofread for typos before you hit submit.
What the check looks at, specifically
Everything happens in your browser: your essay is never uploaded anywhere, which matters when it's coursework you haven't submitted yet. NeverPrompted checks for a statistical AI watermark, in case a tool you used applied one, and separately measures how far your essay's prose style sits from a reference corpus of real, non-AI writing: things like unnaturally even sentence length, stock connective phrases, and hedging that shows up regardless of whether you're actually unsure.
If it flags a section, you get a suggested rewrite and a diff, not an automatic replacement, so you decide what to accept. The point isn't to disguise anything, it's to catch places where your own argument got flattened into generic phrasing during editing, and put your actual voice and reasoning back into the sentence.
Being honest about what a check can and can’t settle
A clean result here isn't a certificate and it isn't proof of anything to a third party; it's information for you, about your own draft, before you submit it. If your essay happens to carry an actual watermark from an AI system, no tool, including this one, can guarantee defeating it, because nobody outside the vendor that applied it holds the key needed to do that. What NeverPrompted can honestly tell you is whether the wording you wrote (or the wording an editing pass left you with) reads as distinct prose or as generic AI-flavoured phrasing, which is the part actually within your control.
Free gives you unlimited checking, which covers the normal case of running a check before you submit each piece of coursework, plus a weekly budget for the rewrite tool if you want help fixing a flagged section. Pro removes that weekly limit and adds a dated PDF report, useful if your institution wants a record of when you checked a piece of work relative to your submission date.
Wherever this page describes a result: a detected mark is not proof of authorship, and an absent mark is not proof of human authorship. NeverPrompted's on-device rewrite can reduce detectable evidence but cannot guarantee defeating a vendor's undisclosed watermark, on any tier.