AI Text Humanizer

Machine-written prose is recognisable before anybody can say why. The vocabulary is part of it — a model reaches for "delve", "leverage", "seamless" and "in the realm of" at a rate no person sustains — but the louder tell is shape. Every sentence close to the same length, every paragraph the same tidy size, a transition word opening sentence after sentence, and an em dash where a person would have used a comma or a full stop.

Rewriting that by hand is slow and repetitive work, because the same dozen problems turn up in the same order in every draft. This tool automates exactly that pass, and it does it with a dictionary rather than a model.

Not a language model, and that cuts both ways

There is no generation step anywhere on this page. What runs is a deterministic pipeline: a large dictionary of machine phrasing, a set of sentence-level transformations, and readability arithmetic. The same input always produces the same output.

That is an advantage in one direction and a limit in the other. It cannot invent a fact, a citation, a quotation or a figure, because there is nothing in it capable of inventing one — which is what makes it a reasonable place to put client copy, an unpublished manuscript or a legal draft. It also cannot notice a claim that was already wrong, or supply an argument the draft does not have. Precision about wording, ignorance about your subject.

The eighteen passes

The pipeline runs in a fixed order and each pass does one narrow job:

The order is not arbitrary. Cleaning characters first means every later pass matches against normalised text. Splitting sentences before the rhythm pass means the rhythm pass measures sentences that will actually survive. The stock phrase sweep runs after the vocabulary passes, because it removes phrasing the scoring model charges for, and the final tidy runs last so nothing upstream re-breaks the punctuation it just fixed.

Choosing a strength

Light changes only the most obvious machine tells and leaves sentence order alone. Use it on a draft that is already yours and merely picked up some machine phrasing along the way.

Balanced is the default and the right starting point: AI phrasing rewritten, long sentences split, passive voice converted.

Strong adds contractions, rhythm repair, paragraph breaking and repetition control. Use it on text that came out of a model in one pass and has never been edited by anybody.

Every pass also has its own toggle underneath the strength selector, so the presets are a starting position rather than a cage. If the result reads too far from your draft, turn passes off one at a time rather than dropping the whole strength a level — you will usually find a single pass doing most of the work.

The two things no rewrite can supply

Structure is one of the two independent halves of what a detector measures, and two of its terms are content rather than style: whether anybody is in the text, and whether anything in it could be pointed at. A first person, an opinion, a real number, a specific example, a "you" aimed at the reader.

No rewrite can add those honestly, because inventing an opinion or a figure is the one thing this engine refuses to do. The AI Content Detector reports how many points those two terms are worth on your draft and lists the sentences to add them to. That work is yours, and it is also the part that makes the biggest difference to the final score.

After the rewrite

Measure the result instead of trusting it. Both versions are scored on the same fingerprint model and the same six readability formulas, with the deltas shown beside each other, so you can see whether the text actually got easier to read or only got differently worded. A rewrite that lowers the AI score while raising the grade level is a trade worth knowing about before you publish.

Then read the change log. It is the reason the output is not a black box: every replacement appears with the original beside it and the pass that made it, so you can accept the rewrite in full or undo the three places where a rule got in the way of a meaning you intended.

Everything runs in this tab — no upload, no API key, no account and no rate limit, which is also why a 60,000-word document is fine to paste.