Paste an AI-assisted essay draft and make it read naturally — while your argument, facts, evidence, citations, tone and academic level stay intact.
GPTZero check included — featured, among others, in:
500 words free · GPTZero check on every run · word-back guarantee
Before and after
You get two values from a tool we don't control: GPTZero, alongside Turnitin, is one of the best-known AI detectors. Every essay is checked, not just a sample — original and humanized version sit side by side, so you can inspect every change instead of taking it on trust.
Keep and check
StudyTexter changes the form of your essay, not what it says. After humanizing, your original and the new version sit side by side — so you can run your eye over these six things and see for yourself that each one survived. The same engine drives our general AI Humanizer — this page is the academic view of it.
Citations and references stay word for word
With many humanizers, the page number quietly drops out of the reference — and a checkable quotation becomes a claim. StudyTexter doesn't touch quotations, evidence or references: what you cited is still there afterwards, unchanged. The highest score for citation integration among the humanizers we tested internally. Start your review here: every quotation, its wording and the reference beside it.
Before“The effect only sets in after several weeks” (Meier, 2024, p. 44).
After“The effect only sets in after several weeks” (Meier, 2024, p. 44).
Argument and meaning
Your line of reasoning is preserved: claims, conclusions and the connections between them stay as you built them. Check that each claim still points to the source you gave it — and that nothing appears that you didn't write.
Identifiers and reference details
Page numbers, section numbers, footnote marks and reference details stay character for character. Check the page numbers in your citations first — that's where other tools slip.
Names and proper nouns
Authors, theorists, institutions, places and titles aren't replaced or localised. Check the author names in your in-text citations against your bibliography.
Facts, figures and dates
Measured values, percentages, samples, deadlines and dates aren't rounded, converted or shifted. Check every number that carries evidence: a percentage without its sample stops being proof.
Technical terms and abbreviations
Technical language isn't simplified when your essay needs it. Check that the terminology of your field reads the way your department uses it.
Your tone and writing level
Academic stays academic, personal stays personal. Read one paragraph aloud: it should still sound like the rest of your essay, at the same level.
How it works
Paste an essay draft from ChatGPT, Claude, Gemini or DeepSeek, click once, and compare the result side by side before you keep anything.
Paste your essay
Copy your essay draft into the field. Up to 500 words a month are free.
Click “Humanize”
One click is enough. StudyTexter varies sentence lengths, transitions and phrasing — your argument, citations, numbers and technical terms stay untouched.
Compare, approve and export
Original and result sit side by side. Check your facts, evidence and citations, approve what you want to keep, and export the finished essay.
Other humanizers
Any humanizer can fool a detector if it waters the essay down enough. The trouble is your marker notices — and they don't give points for “sounds human”.
Error 01
They destroy your quotations
The wording may stay — but the reference next to it gets rebuilt. A loss of marks you barely catch yourself when proofreading.
OriginalAs Schmidt shows, “the effect remains stable across all cohorts” (Schmidt, 2024:44).
OthersAs Schmidt shows, “the effect remains stable across all cohorts” (Schmidt; 2024; page 44).
Citation style wrecked
Error 02
They dumb down your wording
High “human” scores come from simplification. Your detector is satisfied — your marker sees a break in style in the middle of the essay.
OriginalThe results indicate a significant relationship between the two variables.
OthersYou can already see there's a real connection between the two things.
Academic register lost
Error 03
They change important facts
Figures, samples and evidence get “smoothed” and torn out of context. Evidence becomes a claim.
Original68% of respondents (n = 412) agreed with the statement.
OthersMost respondents agreed with the statement.
Figure and sample gone
Independent proof
Real studentswritten without any AI
StudyTexterhumanized workThe dashed line marks the level of real student work. StudyTexter sits above it.
Use cases
Same tool, three very different registers: a research paper, a piece of creative writing, a technical report. Each keeps the level and voice it needs — here's what gets better and what stays untouched.
01
You see your score before the university does.
quotationssourcestechnical termsuntouched
02
Characters that sound different again.
plotcharactersideastay yours
03
Reports that land on the first pass.
measured valueslimitationstechnical termsuntouched
You see the result before you decide.
Detectability, honestly
We show you the GPTZero value before and after because it's more useful than a promise. But it's worth knowing what that number is and isn't: a detector score is a calculated probability, not a verdict.
Detectors calculate probabilities, not facts
A detector estimates how many typical AI patterns it finds in a text. A low score means it found few — not that an essay is certified human or undetectable for good.
Detectors change and disagree with each other
Detection models are updated constantly and two tools can classify the same essay differently. That's why no humanizer can guarantee the same result on every detector, and we don't promise it either.
They also get human-written essays wrong
Essays written entirely by a person sometimes get high AI scores, especially when they're technical and highly structured. It's one of the reasons we show the starting value.
We reduce the typical AI patterns and show you what GPTZero says. The decision about what you hand in, where and under which rules stays yours. If the question is less about the essay itself and more about detector scores, the Undetectable AI Humanizer covers that.
Responsible use
Humanizing an essay and checking its originality are two different things. It's worth keeping them apart, especially when the essay counts towards a grade.
Humanizing isn't a plagiarism check
The humanizer changes sentence structure, transitions and word choice. It doesn't check whether an idea comes from another source or whether that source is cited correctly. A plagiarism check is a separate check and is still necessary.
Humanizing doesn't fix missing sources
If a reference is missing or wrong in your draft, it will still be missing or wrong after humanizing. What we do is protect it so it doesn't break; what we can't do is invent it or verify it for you.
Your institution sets the rules
Every university and school regulates whether and how AI may be used in writing differently. No tool releases you from that rule. Check the applicable regulations, disclose where required and verify the final essay before you hand it in.
Your essay stays yours
Your essays are stored only in your personal history so you can open them again later. Beyond that we don't process them further — in particular, we don't use them to train AI models.
Always check originality, sources and the applicable rules before you hand in or publish. More on how we handle your texts in safety and quality.
Need the same processing inside your own application? It is also available as a Humanizer API.
Why StudyTexter
Every humanizer changes words. These are the things that decide whether your essay still works afterwards — and they are where the tools differ most.
Built for complex texts
Trained on writing that carries arguments, facts, sources and citations. An essay that has evidence in it comes back with that evidence intact — which is exactly where general-purpose rewriters lose the thread.
The strongest citation handling we measured
Direct quotations, evidence and references stay word for word, protected with markers and validated after rewriting. The highest score for citation integration among the humanizers we tested internally.
Your writing level is held, not lowered
Technical stays technical, academic stays academic. Many tools buy a better detector score by simplifying your language — the marks you lose for that are the ones you were trying to protect.
More than swapping synonyms
Sentence structure, transitions and rhythm change, not just individual words — those patterns are what give an AI draft away in the first place.
Good AI score. Good essay.
The score isn't the only goal. Naturalness, meaning, language and source handling count just as much — otherwise you win the score and lose the essay.
Stable text length
The humanizer improves the style instead of inflating or trimming your essay. If your assignment has a word count, what goes in comes out at the same length.
Automatic language detection
Paste your essay and go. StudyTexter recognises the language on its own and returns the result in the same one, without translating it.
Model updates included
Thousands of detector checks a month tell us early when detection systems change. The humanizer keeps up without you having to do anything.
Not a “satisfaction guarantee” that we decide. The criterion is a neutral third party: GPTZero. Either the score says “human” — or you paid nothing.
Lea M.I humanized my discussion chapter — GPTZero still shows me 71% AI.
StudyTexter SupportThe 512 words have been credited to you. We re-humanized the chapter without charging a single extra word — verified result: 96% human.+512 words credited23 minutes later
This is a word credit, not a money-back refund. It applies to texts humanized entirely with StudyTexter and not edited afterwards, and requires proof of the run. We measure with GPTZero, independently of us: no partnership, no arrangement, no influence on the score. We tie the guarantee to a verdict we don't control.
Raw results, not polished. And 100% anonymous.
Click to enlarge
“With the first tool, I had to check every single footnote afterwards. That took longer than writing the chapter itself.”
Tim B. · Law term paperStart free. Paste up to 500 words of your essay and have them humanized in under 10 seconds.
Free to try · ready in 30 seconds · word-back guarantee
Questions
An essay humanizer reworks an AI-assisted draft from ChatGPT, Claude, Gemini or DeepSeek so it reads like natural writing. It spots the typical AI tells — uniform sentence lengths, the same transitions over and over, generic phrasing — and replaces them with more varied language. What your essay says stays the same: the argument, facts, evidence, citations and technical terms aren't reinvented. No honest tool can promise an essay will stay undetectable forever, so instead of a promise we show you the real GPTZero value before and after. StudyTexter works in English and 40+ other languages and keeps your writing level.
Yes. You get 500 free words every month, and the allowance resets automatically — including the GPTZero check before and after humanizing. That's enough to humanize a full essay section each month and judge the result on your own writing.
You can paste up to 500 words per run, and 500 words a month are free. Longer essays work section by section — which has a practical advantage: you review each part side by side with its original before moving on, so the finished essay stays coherent.
Yes. Direct quotations, references and page numbers are protected with markers and validated after rewriting — they stay word for word. In our internal comparison, StudyTexter reached the highest score for citation integration among the humanizers we tested.
That's what it's built for. Your line of reasoning, facts and conclusions stay as you wrote them — 99.7% content fidelity — and the register isn't lowered to please a detector. Technical stays technical, academic stays academic.
No honest tool can promise a fixed result on every detector: detector scores are probabilities, the models change over time, and two tools can disagree on the same essay. What we do instead is show you the real GPTZero value before and after, so you see where your essay stands. And if GPTZero still classifies your humanized essay as AI, the word-back guarantee credits the words you used back under the guarantee terms.
Humanizing changes how your essay sounds; it doesn't write it for you and it doesn't check originality. Whether and how AI may be used in your work is set by your institution, and the rules differ widely. Check the applicable regulations, disclose AI use where required and verify the final text before you hand it in — the responsibility for what you submit stays yours.
Reviews are mixed for a good reason: results depend on the essay, the detector and the day the test was run, so one person's screenshot doesn't predict yours. That's why we don't ask you to trust a testimonial — you paste your own essay, run the before/after GPTZero check and see the result on your own material.
Yes, and the tool is built to make that easy: original and humanized version sit side by side, so you can check facts, quotations and references before you approve anything. A final read-through is always worth it — you're the one who knows what your essay has to say.
Yes. Drafts from ChatGPT, Claude, Gemini, DeepSeek and other language models all work the same way: paste the draft, humanize, compare. The tool reduces the typical AI patterns while keeping your meaning, citations and writing level.
The humanizer recognises the language on its own and returns your essay in that same language, without translating it. StudyTexter works in English and 40+ other languages. Note that detector coverage differs across languages: GPTZero is more reliable in some than in others.
Your essays are stored only in your personal history so you can access them again later. Beyond that we don't process them further — in particular, we don't use them to train AI models.
It's the same tool either way. “Humanizer” is the US spelling and “humaniser” the UK one — both land you on this same page, and the tool handles both varieties of English.
Humanize your essay for free now
500 words free · before/after check with GPTZero · word-back guarantee
