# AI Humanizer Tool > A working guide to humanizing AI text: what actually makes writing sound machine-made, plus before-and-after rewrites you can copy the moves from. Canonical: https://ai-humanizer-tool.com/ ## Page AI Humanizer Tool — Before-and-after rewrite pairs, with the changed words marked. No signup, nothing uploaded. ## FAQ - Q: Will swapping synonyms make my text sound human? A: No, and it usually makes things worse. Synonym swapping leaves the sentence shape untouched, and the shape is most of what you are hearing. A thesaurus-rewritten paragraph still has the same flat rhythm and the same unfilled claims. It just has stranger word choices on top. Fix the structure first — the vocabulary tends to take care of itself. - Q: Should I add typos or slang to sound more human? A: Please do not. Detectors and readers both treat deliberate errors as a different signal, and readers find it patronising. What actually reads human is unevenness with a purpose: a specific detail nobody would invent, an opinion you are willing to stand behind, a sentence that runs long because the thought did. - Q: How much rewriting is too much? A: When you can no longer say what the original sentence was claiming, you have gone too far. The target is the same meaning said the way a person would say it, not a new argument. If you keep losing the thread, work sentence by sentence and check the meaning survives each edit before moving on. - Q: Which fix gives the biggest improvement for the least effort? A: Deleting the run-up. Sentences like 'it is important to note that' or 'in order to' can lose their opening words with no loss of meaning at all. In a typical machine-drafted paragraph this single move removes a surprising amount of the machine feel, and it is the one you can apply without thinking. - Q: Does humanized text pass AI detectors? A: Sometimes, but that should not be the goal, and chasing it is a bad trade. Text edited specifically to beat a detector tends to read worse to actual people, who are the ones you are writing for. Aim for 'sounds like a person wrote it'. If that also lowers a detector score, fine. - Q: My text is technical and has to stay formal. Does any of this apply? A: Yes, and it applies more than you would think. Formal does not mean abstract: a technical document can say 'this call blocks for 200ms' instead of 'performance considerations apply to this operation'. Precision reads human even in a dry register — vagueness is what reads machine-made. - Q: How do I tell whether I have fixed it? A: Read it aloud. If you stumble, or if a sentence sounds like something you would never say, that is the spot. This test is crude but it catches the failures that matter, and it does not require any tool or score. - Q: Is there a tool that does all this automatically? A: Tools can flag the patterns, and that is genuinely useful for finding them in the first place. What they cannot do is know which of your details are worth keeping or which of your opinions are worth stating. That part is the writing. The linked detector shows its reasoning if you want a second opinion on where the machine-ish parts are.