AI CHECKER FOR STUDENTS · FREE PLAN
AI Checker for Students: Check Your Assignment Before You Submit
Upload your essay, report, thesis chapter or slides, or paste the text. See which passages a detector may question, with the reasons, so you walk into any conversation with your drafts ready.
Open in beta · 10 free credits a month · Files deleted after 30 days
AI Document Detector
Open in betaWhat you need
Upload a PDF, DOCX or PPTX file
PDF, DOCX or PPTX, up to 20 MB and 50 pages.
At a glance
Per page
Text, embedded images and metadata are checked and summarised page by page.
AnyFact method
3 levels
Probably human, uncertain or probably AI — never a bare percentage — with the reasons and the limits of the method.
AnyFact method
10 credits
Free every month with an account, no credit card. Uploaded files are deleted after 30 days.
AnyFact free plan
What students actually need from an AI check
Universities now run AI-writing checks, and the result can trigger a meeting. Students who wrote their own work, used AI only for ideas, or write in a second language want to know how their submission reads to a detector.
A useful check works on the file you will hand in (PDF, Word or PowerPoint), shows which passages stand out and explains why, instead of a single score with no reasons.
No detector, including ours, predicts what your school’s own tool will say, and none is proof. What protects you is evidence of your process: drafts, version history, notes and sources.
Does this sound familiar?
- You wrote it yourself and want to be sure it will not be flagged unfairly.
- You used an assistant to brainstorm or fix grammar and want to see how the result reads.
- English is not your first language and you are worried about false positives.
- Your group project mixes several writers and you want to see the parts that stand out.
Here's what we check
Upload the file
PDF, DOCX or PPTX, up to 20 MB and 50 pages.
Text, images, metadata
Each part goes to the right detector; unusual authoring software or dates are flagged.
A verdict in three levels
Probably human, uncertain or probably AI — never a bare percentage — with a short explanation and the limits of the method.
How to read the result
The signals point to a person. It is not a guarantee: a careful generator or heavy editing can leave few traces.
The signals disagree or are too weak. We say so rather than guess, and list what was found.
The signals point to generation. It is an indication, not proof — check the context before acting.
Sample layout. Real reports name the signals that were checked and the limits of the method.
What does an AI checker for students check in your assignment?
An AI checker for students reads the file you are about to hand in and shows which parts a detector reads as generated, with the reasons. On AnyFact you can upload the assignment itself, as a PDF, a Word file or a PowerPoint deck, or paste the text of an essay. What gets read depends on the format.
| Format | What is read | How the result is split | Credits |
|---|---|---|---|
| PDF (.pdf) | The text layer of every page; scanned pages through OCR in English, French and Arabic (first 20 scanned pages); embedded images; the file’s metadata | Page by page | 3 |
| Word (.docx) | All paragraphs, grouped under your headings when the document has them; embedded images; metadata such as the application used and the recorded editing time | Section by section, or by numbered paragraphs when there are no headings | 3 |
| PowerPoint (.pptx) | The text of every shape, including grouped shapes and tables; the speaker notes; the images on each slide; metadata such as the tool that produced the deck | Slide by slide | 3 |
| Pasted text | At least 300 characters of English, French or Arabic, scored in passages of 2–3 sentences | Passage by passage, with flagged passages highlighted | 1 |
Files can be up to 20 MB and 50 pages or slides. Legacy .doc and .ppt files are refused, so save them as .docx, .pptx or PDF first. If you write in Google Docs or Google Slides, download the assignment as .docx, .pptx or PDF from the File menu before you upload it: see the Google Docs AI detector and Google Slides AI detector pages.
In the AnyFact beta, slide decks were the format checked most. Of the first 112 documents analysed in the AnyFact beta (October 2026), 50 were PowerPoint files, 31 Word files and 30 PDFs, most of them coursework that students were checking themselves. Slides have their own quirks, covered on the AI detector for PowerPoint page. For one essay, pasting it into the AI text detector is the quickest route and uses 1 credit.
What your file’s metadata can say
Office files record how they were made, and the document check lists anything unusual as a signal. These are the signals it looks for:
- An AI tool named in the creator, producer or application field, for example ChatGPT, Copilot, Gemini or Claude, or slide generators such as Gamma, Tome, Beautiful.ai, SlidesGPT, Decktopus, MagicSlides, Presentations.AI or Plus AI.
- A file produced by a programming library or converter (such as python-docx, python-pptx, PptxGenJS, docx.js or PHPWord) rather than by an office application.
- A modification date earlier than the creation date, or a creation date in the future.
- 0 minutes of recorded editing time for a long document, or no metadata at all.
Each is a signal, not proof. Converters and “Save as” change metadata too, and moving a finished text into a fresh template can leave a long file with almost no editing time. If that is how you worked, keep the original file and its version history so you can show where the text was written.
How do you check your assignment for AI before you submit it?
Check the exact file you will submit, read the result part by part, and keep the report with your drafts. These steps work for an essay, a report, a lab write-up or a slide deck.
- 01Export the final version in the format you will hand in: PDF, .docx or .pptx. Checking the same file avoids surprises from conversion.
- 02Upload the file, up to 20 MB and 50 pages or slides. To check my essay for AI quickly instead, paste at least 300 characters of your own prose, leaving out the cover page, long quotations and the reference list.
- 03Read the overall verdict, then open the breakdown: pages for a PDF, sections for a Word file, slides for a deck, passages for pasted text.
- 04Note whether each flag comes from the text, an image or the metadata. They point to different questions.
- 05For every flagged part, write one line in your notes: who wrote it, from which sources, with which tools.
- 06Act on the verdict level, as set out in the table below.
- 07Download the PDF report and file it with your drafts and version history.
- 08If a result looks wrong to you, use the “the result is wrong” button under the verdict.
What to do with each verdict
| Verdict | What it means | What to do next |
|---|---|---|
| Probably human | The signals lean toward human writing. It does not certify the work. | Submit as planned. Keep your drafts and version history anyway, because another tool can read the same text differently. |
| Uncertain | The evidence is weak either way, which is common for short texts, slides with few words and formulaic writing. | Treat it as no information, not as a warning. Make sure your process evidence is easy to find. |
| Mixed | Some parts look generated and others do not. The breakdown names the pages, sections, slides or passages. | Go through each flagged part. If you wrote it, note how. If a tool wrote it, check whether your course allows that, then disclose it or rewrite it in your own words. |
| Probably AI | Most of the content reads as generated, or the metadata names an AI tool. | If you wrote it, gather your evidence now and consider raising it with your teacher before the deadline. If a tool produced it, rewrite it from your own understanding or declare the help as your course requires. |
Is there a free Turnitin AI detector for students?
Not one you can run yourself, in most cases. Turnitin is an institutional system: your school or university licenses it and runs it on the work you submit through your course. Turnitin’s help center says it does not sell individual licences or single-use subscriptions (checked October 2026), so a student usually sees a Turnitin report only when the institution shares it.
That explains why “turnitin ai detector free” and “free turnitin checker” are such common searches. Be careful with any website that offers to run Turnitin for you: before you upload coursework anywhere, find out who actually runs the check and what happens to your file. AnyFact deletes uploaded files after 30 days.
Is there an AI detector like Turnitin that gives the same result?
No. Each detector uses its own model, training data and thresholds, so no third-party tool can tell you what Turnitin will say about your file. AnyFact does not replicate or predict Turnitin or any other school tool. A clean result elsewhere is not a promise, and a flag elsewhere is not a forecast.
What a pre-check can still tell you
- Which pages, sections, slides or passages read as predictable enough for a detector to question, and why.
- Whether your file’s metadata names an AI tool, a converter or an odd editing history that you should be ready to explain.
- Whether parts written in a rush, or polished heavily with a grammar tool, read differently from the rest.
- Where your process evidence matters most, so those drafts are ready before anyone asks.
For access, features and the cases where Turnitin is the better fit, see the Turnitin alternative comparison.
If your school uses Turnitin
Ask your teacher or check the course handbook for three answers: whether AI writing detection is used on your course, whether students can see the report, and what happens after a flag. Those answers matter more than any score you can get elsewhere.
Why can an AI detector flag an assignment you wrote yourself?
Because detectors measure how predictable the wording is to a language model, and a lot of honest student writing is predictable on purpose. AnyFact scores text with the Fast-DetectGPT method, and standard academic phrasing is exactly the kind of wording a model expects.
| Cause | Why it reads as predictable | What to do |
|---|---|---|
| Formal academic register | Set phrases, standard transitions and the essay structure you were taught are what a model expects next. | Nothing to fix. Keep your outline and drafts; they show the structure came from you. |
| Writing in a second language | Careful writers often choose safer, more common words and sentence patterns. | Keep notes or early drafts in your own language. Tell your teacher early if you are worried. |
| Grammar and rewriting tools | Light corrections change little; tools that rewrite whole sentences replace your wording with typical wording. | Keep a copy from before the tool and note which tool you used. Check whether your course counts it as AI use. |
| Translation | Machine translation produces fluent, regular text even when every idea is yours. | Keep the original-language draft and ask whether translation tools are allowed. |
| Templates and set formats | Lab report templates, slide templates and structured reflections share wording across a whole class. | Expect uncertain results on those parts and point to the template if asked. |
| Short texts | A slide with four bullets or a 150-word reflection gives the method little to measure. | Read an uncertain verdict as no information. In a document under 300 words, the result says the text check gives little evidence. |
The risk for second-language writers is documented. In a 2023 study in the journal Patterns, Stanford researchers (Liang et al.) ran English essays through several popular GPT detectors and found that essays by non-native writers were mistaken for AI-generated text far more often than essays by native speakers. If English is not your first language, read any flag on your work with that in mind, and keep your drafts.
The guide on whether AI detectors are accurate explains where false positives come from and how to talk about them.
How can you prove you wrote your assignment yourself?
Not with a detector score, not even a probably-human one. You show it with your process: the trail of drafts, notes and sources that only the person who did the work has. Start that trail on day one, not after a question comes up.
Turn on version history where you write
- Google Docs and Google Slides save versions automatically. Open File, then Version history, then See version history, and name the key versions, such as “outline”, “first draft” and “after feedback”.
- Word and PowerPoint keep a version history when the file is saved to OneDrive or SharePoint; open File, then Info, then Version History. A file kept only on your laptop has no such history, so save dated copies of your drafts as you go.
- Keep the original working file. You can submit an exported PDF, but the source file is what carries the history.
Keep the rest of the trail
- Dated drafts, including the messy first one.
- Notes, outlines, mind maps and photos of handwritten pages.
- The sources you used, with page numbers, in a reference manager or a simple dated list.
- For slides: the rough storyboard and where each image came from.
- For group work: who wrote which section or slide.
Keep a short process log
A log written as you go is easy to keep and very convincing later. One line per work session is enough, covering:
- The date and roughly how long you worked.
- What you did: reading, outlining, drafting, revising.
- Any tool you used and for what, for example “grammar check on section 2” or “asked an assistant for counter-arguments, then wrote my own”.
- Sources added, and feedback received with what you changed.
If your teacher questions your work
Stay calm and treat it as a conversation about how the work was made. A flag is a question, not a finding.
- 01Ask for specifics: which parts, which tool raised the concern, and what else, beyond a score, prompted it.
- 02Prepare a one-page timeline: when you started, your key drafts, when you received feedback, when you finished.
- 03Offer to explain a flagged section on the spot: its argument, its sources and why you phrased it that way.
- 04Mention every tool you used, even minor ones, and the course rule you followed.
- 05Afterwards, send a short email summarising what you showed and what was agreed.
Ask about your institution’s AI policy
Rules differ between universities, departments, courses and even single assignments. Ask before you start, and keep the answer:
- Which uses of AI are allowed for this assignment, if any?
- Do grammar, paraphrasing and translation tools count as AI use?
- How should AI help be disclosed: a note, an appendix, the prompts themselves?
- Which detection tools does the course use, and who reviews a flag?
Which uses of AI are allowed in student assignments?
That depends on your institution, your course and the assignment, so use this table to prepare questions for your teacher, not as rules. The useful distinction is between help that leaves your own thinking and wording in place and help that produces the text or images you hand in.
| Use | What it changes in your work | Question to ask |
|---|---|---|
| Brainstorming topics or angles | Where your ideas start; the writing stays yours | Do I need to mention it, or attach my prompts? |
| Outlining or structuring | The plan of the work | Is the structure part of what is assessed? |
| Spelling and grammar correction | Surface errors; heavier use changes your wording | Where does correction end and rewriting begin? |
| Paraphrasing or rewriting your sentences | Your wording, sentence by sentence | Does a rewriting tool count as AI use here? |
| Translating your own draft | The language of the final text | Is translation allowed, and should I declare it? |
| Explaining a concept or a reading | Your understanding, not the submitted text | Should I cite it, and how do I check it is correct? |
| Drafting paragraphs or sections | The submitted text itself | Is any generated text allowed, and how should it be marked? |
| Generating slides or images | The visuals and sometimes the whole deck | Are generated visuals allowed, and how should I credit them? |
Whatever the answer, write it down and declare your use the way your course asks. A permitted use you have declared is easy to explain; an undeclared one is harder to explain later, even when it was harmless.
For slide decks, remember that the file can name the tool that built it. Decks exported by AI slide tools such as Gamma, Tome or SlidesGPT often say so in their metadata, which the document check lists as a signal. If your course allows the tool, saying so up front avoids a confusing conversation later.
How do you check a group project or presentation for AI?
Check the final shared file once, then read the result part by part with your group. A mixed verdict is normal when several people, and sometimes several tools, contributed to one file.
- 01Agree at the start who writes which section or slide, and keep that list in the shared folder.
- 02Export the final deck or report and upload it. In a deck, the speaker notes are analysed too, so notes pasted from an assistant count as part of the content.
- 03Match each flagged slide, section or page to the person who wrote it, and let that person explain their process.
- 04Check whether a flag comes from the text or from an image. A generated illustration can flag a slide even when every word on it was written by the group.
- 05Agree before submitting how to declare any AI use your course allows, so everyone tells the same story.
Slides are the hardest format for text scoring because they hold few words, so a deck of short bullets can come back uncertain on its text while the images and metadata carry more of the evidence. Speaker notes written in full sentences give the text check more to work with, and they are useful evidence of your own preparation.
What can an AI checker for assignments not tell you?
It tells you how your file reads to one detection method. It cannot answer the questions that decide an academic integrity case.
- It is not proof. Neither a probably-AI nor a probably-human result settles who wrote the work; detectors can be wrong in both directions.
- It is not a Turnitin prediction. Your school’s tool is a separate system with its own model, and AnyFact does not replicate it.
- It is not a plagiarism check. AnyFact does not compare your text with published sources or other submissions; see the difference between an AI detector and a plagiarism checker.
- It does not know your course rules, so it cannot say whether a use of AI was allowed.
- It does not check facts or citations. A fully human essay can still cite a source that does not say what you claim.
- It does not read more than 50 pages at once. A thesis is checked chapter by chapter, as explained on the AI detector for research papers page.
Use the check the way you use a spell-checker: as a reason to reread, not as a judgement. The judgement is made by people, with your process evidence in front of them.
Before you check
Is the result proof that a content was made by AI?▼
No. It is an indication, not proof. Detectors can be wrong in both directions, especially on compressed, cropped, edited or very short content. Use the result to decide what to check next, not as a final judgement on anyone.
Why no percentage?▼
A single percentage suggests a precision no detector has. You get one of three levels — probably human, uncertain or probably AI — with the signals behind it and the limits of the method.
How does the analysis work?▼
When the content carries provenance data, such as C2PA content credentials or metadata, we read it first. Then an open-source detector scores the content. When the score is borderline, Claude reviews it as a second opinion, and the result is explained in plain words.
What happens to my files?▼
They are processed to run your analysis — including, for borderline cases, a review by Claude, Anthropic’s model — and deleted after 30 days.
What does it cost?▼
There is a free plan: a free account gets 10 credits every month, with no credit card. Pro ($15 a month) gives 1,000 credits a month; Business ($49 a month) gives unlimited Business Checks and AI checks under a fair-use limit.
How many assignments can I check with a free account?▼
A free account gets 10 credits a month and no credit card. A file check (PDF, Word or PowerPoint) uses 3 credits and a pasted-text check uses 1, so the credits cover six file checks, twenty text checks or a mix of both.
Is a “free Turnitin checker” website the same as Turnitin?▼
Be careful. Turnitin’s help center says it does not sell individual licences or single-use subscriptions; its services go to schools, universities and organizations. Before uploading coursework to any site, check who runs the check and what happens to your file, and ask your school how you can see its own Turnitin results.
Can I check a Google Docs or Google Slides assignment?▼
Yes, by downloading it first. In Google Docs, use File, then Download, and choose Microsoft Word (.docx) or PDF; in Google Slides, choose Microsoft PowerPoint (.pptx) or PDF. Keep the online original, because its version history is part of your process evidence.
Are the speaker notes and tables in my PowerPoint checked?▼
Yes. The check reads the text of every shape, including grouped shapes and tables, plus the speaker notes, and sends the images on each slide to the photo detector. The result is given slide by slide.
Can I check an assignment written in Arabic, French or another language?▼
Text checks support English, French and Arabic. Scanned pages are read with OCR in those three languages, and the explanation is written in English, French or Arabic. Assignments in other languages are outside what the text detector is built for.
My essay was flagged but I wrote it myself. What should I do?▼
Do not try to rewrite it until the flag disappears. Look at which passages were flagged and why, collect your drafts, notes and version history, and be ready to explain how you wrote those passages. If you are worried, talk to your teacher before you submit.
Does a probably-human result prove I did not use AI?▼
No. A result is an indication in either direction, and your school’s tool may read the same text differently. Keep the PDF report if you like, but your drafts and version history are far stronger evidence of how the work was made.
Can I check an old .doc or .ppt file?▼
Not directly. Legacy .doc and .ppt files are refused. Open the file and save it as .docx, .pptx or PDF, then upload that version.
Check your assignment before you hand it in
What you need
Upload a PDF, DOCX or PPTX file
Free plan — 10 credits every month, no credit card.
Each result is an indication, not proof.
Files deleted after 30 days.
You might also want to check
AI Essay Checker: Does This Essay Look AI-Written?
AI essay checker for students and teachers: see which passages of an essay look AI-written, with an explained verdict. Paste the text or upload a PDF or Word file.
AI Detector for PowerPoint: Were These Slides Made With AI?
Upload a .pptx and see, slide by slide, which text, speaker notes and images look AI-generated, plus metadata from AI slide tools like Gamma. Free plan.
AI PDF Checker: Was This PDF Written With AI?
Upload a PDF and see, page by page, which parts look AI-written: text, scanned pages (OCR), images and metadata, with an explained verdict. Free plan, no card.