Paste a draft from ChatGPT, Claude, Gemini, DeepSeek or any other AI and make it sound more naturally yours — meaning, facts, evidence and writing level stay intact.
GPTZero check included — featured, among others, in:
500 words free · GPTZero check on every run
Before and after
You get two values from a tool we don't control: GPTZero, one of the best-known AI detectors. Every input is checked, not just a sample — so you see what changed instead of taking it on trust.
What stays
Sounds more human, stays the same in content. StudyTexter changes the form of your text — not what it says. The same engine drives our general AI Humanizer — this page is the detector-focused view of it.
Sources and quotations 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 wrote is still there afterwards, unchanged. The highest score for citation integration among the humanizers we tested internally.
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).
Meaning
Statements and arguments are preserved. Nothing is added that you didn't write.
Numbers and identifiers
Order number, invoice number, case reference, article and customer number are still there character for character.
Names and proper nouns
People, companies, brands, products and places aren't replaced or localised.
Figures, dates and units
Measured values, amounts, deadlines and dates aren't rounded, converted or shifted.
Technical terms and abbreviations
Technical language isn't simplified when your text needs it. GDPR stays GDPR, KPI stays KPI.
Your tone and how you address the reader
Formal stays formal, casual stays casual. Your form of address stays — the writing level isn't raised or lowered.
Other humanizers
Any humanizer can fool a detector if it waters the text 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 chapter.
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
What to look for
Not the highest score, but the right trade-offs: meaning and facts preserved, a detector check you can see, your writing level kept, free access and full control over the result.
500 words free — every month
Your free credit refills automatically every month. You try the humanizer without paying anything — and not just once.
43+ languages
English, German, Spanish, French, Polish and 38+ more: your AI texts are humanized in more than 43 languages.
Automatic language detection
Paste your text and go. StudyTexter recognises the language on its own and returns the result in the same one.
Quotations stay quotations
Direct quotations, evidence and references stay word for word. The highest score for citation integration among the humanizers we tested internally.
Before-and-after check
Both the original and the humanized version are checked for their AI score. You see the difference instead of having to believe it.
Word-back guarantee
If GPTZero still classifies your humanized text as AI, we credit the words you used back to you under the guarantee terms.
99.7% content fidelity
More natural language, same message: your core statements and their connections stay exactly as you meant them.
Your writing level stays
Technical stays technical, academic stays academic. No dumbing down just to push the AI score.
Any text type, any level
From a children's story to a scientific paper: every text type is supported — and each keeps exactly the tone it needs. Nothing is simplified, nothing artificially inflated.
Stable text length
The humanizer improves the style instead of inflating or trimming your text. What goes in comes out at the same length.
More than swapping synonyms
Not just word-swapping: sentence structure, transitions and rhythm change — exactly the patterns that give AI text away.
Good AI score. Good text.
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 text.
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.
573.7M words humanized
More than 573 million words have already run through StudyTexter. Your text isn't the test run.
Cancel any time
No minimum term, no fine print: you end the Student plan with a single click.
Detectability, honestly
Every run is checked with GPTZero — with Turnitin, one of the two best-known AI detectors. 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 a text 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 text 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 text wrong
Texts 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 what you are handing in is an essay, the Essay Humanizer covers the academic side in more detail.
Independent proof
Real studentswritten without any AI
StudyTexterhumanized workThe dashed line marks the level of real student work. StudyTexter sits above it.
How it works
Paste a draft from ChatGPT, Claude, Gemini or DeepSeek, click once, and get text that sounds natural — checked before and after humanizing.
Paste or upload your text
Copy your AI text into the field or upload a file. Up to 500 words a month are free.
Click “Regenerate”
One click is enough. StudyTexter varies sentence lengths, transitions and phrasing — technical terms, numbers and quotations stay untouched.
Compare, verify and export
You get a version that sounds human and reaches a clearly better score. Original and result sit side by side — check the facts, evidence and citations, then keep and export what you want.
Use cases
Where StudyTexter steps in, what gets better — and what stays untouched in every case.
01
Emails that sound like you.
datesamountscommitmentsstay exact
Want to integrate the humanizer into your product or workflow? Use our Humanizer API!
02
The template becomes your application.
milestonesdatesnumbersstay exact
03
Text you can hear a person in.
factsquantitiespricesunchanged
Want to integrate the humanizer into your product or workflow? Use our Humanizer API!
your_meal_prepxxRecipes & meal prep
your_meal_prepxxIn today's fast-paced times, these roasted veggies with feta are not only delicious but combine time-saving and mindful enjoyment in a harmonious way.These roasted veggies with feta are perfect when you're in a hurry and still want something decent.
1. Roasted veggies with feta600 g sweet potato200 g feta2 tbsp olive oil200 °C fan ovenQuantities unchanged
04
Reports that land on the first pass.
measured valueslimitationstechnical termsuntouched
05
You see your score before the university does.
quotationssourcestechnical termsuntouched
06
Material that lands on the first read.
namesgradesdatesstay put
07
Characters that sound different again.
plotcharactersideastay yours
08
Replies that mean the customer.
case numberdeadlinesamountsstay exact
Want to integrate the humanizer into your product or workflow? Use our Humanizer API!
You see the result before you decide.
Responsible use
Humanizing a text and checking its originality are two different things. It's worth keeping them apart, especially if you're handing the text in at a university or sending it out at work.
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 or employer sets the rules
Every university and workplace 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 text before you hand it in or send it out.
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.
Compatibility
The humanizer recognises the language on its own and returns the result in that same language. It doesn't translate: it works within your language, with its syntax and register.
Languages
And 36+ more languages, with automatic language detection.
Text types
Language detection and detector coverage are two different things: just because the humanizer works in a language doesn't mean every AI detector evaluates it equally well. GPTZero works more reliably in some languages than others. If your text is in a less common language, compare the result yourself before handing it in.
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 and have them humanized in under 10 seconds.
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Questions
An undetectable AI humanizer reworks text from ChatGPT, Claude, Gemini or DeepSeek so it reads more naturally and shows fewer of the patterns AI detectors react to. It replaces the typical AI tells — uniform sentence lengths, the same transitions over and over, generic phrasing — with more varied language, while claims, facts, sources and technical terms stay as they are. No honest tool can promise a text will stay undetectable forever, so instead of a number StudyTexter shows you the real GPTZero value before and after.
No, and you should be wary of any tool that promises it. AI detectors are probabilistic: they estimate how likely a text is machine-written, they're updated over time, and two of them can disagree on the same text. That's why an honest humanizer doesn't sell you a permanent “undetectable” result. What we do is reduce the patterns detectors react to and show you the real GPTZero value before and after, so you can judge the result on your own text.
It depends on what your text has to keep, and be wary of anyone who gives you a blunt answer. If you just want text that sounds natural, there are many free options. If your text carries quotations, figures or a technical level that can't drop, look at three things before you choose: whether the tool protects references, whether it shows you a detector check before and after, and whether it lets you compare the two versions yourself. StudyTexter is built around exactly those three.
It can. Detectors sometimes flag humanized text, and they also misclassify writing that a person wrote from scratch. Because detection is a moving target — models change, tools disagree — no humanizer can guarantee a fixed result on every detector. We show you the GPTZero value before and after instead of promising a number, so you see where your text actually stands.
Humanizing a ChatGPT draft works the same as with Claude, Gemini, DeepSeek or other language models — you paste the draft and the process is identical. It makes the text read more naturally and reduces common AI tells, while keeping your meaning, facts and citations. It doesn't come with a guarantee that any specific detector will pass it; that's simply not something a detector's probabilistic score allows.
Both rewrite, but they're after different things. A paraphraser puts your own content into other words — meaning, quotations and register can shift with it. A humanizer makes AI-generated text sound natural while deliberately protecting what it says: figures, sources and citations stay in place, the writing level isn't lowered, and StudyTexter runs a GPTZero check before and after. If you just want to avoid a repetition in your own text, a paraphraser will do. If your draft comes from an AI model and has to keep facts, citations and level, the humanizer is the right tool.
Yes. You can use the AI humanizer for free: after a free sign-up you have 500 words a month.
Turnitin's AI indicator is one detector among several, and like all of them it works with probabilities and shifts over time. What StudyTexter does is reduce the patterns detectors react to while your quotations, references and figures stay exactly as you wrote them — and the before/after check with GPTZero shows you where your text stands before you hand it in. Your institution's rules on AI use still apply.
Reviews are mixed for a good reason: results depend on the text, the detector and the day the test was run, so one person's screenshot doesn't predict yours. That's exactly why we don't ask you to trust a testimonial. You paste your own text, run the before/after GPTZero check and see the result on your own material — no forum thread required.
Yes, and that's where the safeguards matter most. Quotations, references, technical terms and figures stay intact, and you see the GPTZero value before and after. Humanizing is not a plagiarism check, though, and it doesn't replace your institution's rules — check both before you submit.
That's what the humanizer is built for: statements, facts, figures, sources and technical terms stay, while sentence structure, transitions and word choice change. Quotations and references are protected with markers and validated after rewriting. Because both versions sit side by side, you can check it on your own text before you keep anything.
The humanizer recognises the language on its own and returns the result in that same language, without translating it. StudyTexter works in English and 43+ other languages. Note that AI-detector coverage isn't equal across languages: GPTZero is more reliable in some than in others.
Your texts 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.
We can't promise that, and no tool of this kind should. Humanizing changes the style of a text; 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.
For humanizing itself you need a free account — your monthly word allowance is tied to it. You can already paste the draft here on this page and take it into the tool afterwards.
It's the same tool either way. “AI humanizer” is the US spelling and “AI humaniser” the UK one. Both land you on this same page.
Humanize your AI text for free now
500 words free · before/after check with GPTZero · word-back guarantee
