Your pre-submission review
ChatGPT Detector: Free AI Check Before You Submit
One more check before you hit submit.
Check essays, articles, and drafts for signs of AI-generated writing, then understand the result before your work leaves your hands.
- Free to use
- No sign-up
- Sentence-level highlights
Your results will appear here. See your writing assessment and passages to review after running a check.
AI detection is an estimate, not proof of authorship, and cannot predict a Turnitin result. Each check reads up to 2,000 words.
Start with your situation
Before you submit, know what you are checking.
A ChatGPT detector addresses one question: does this passage contain patterns associated with AI-generated writing? Your next step depends on how the document was created and where it is going.
“I wrote this myself. Will it be flagged?”
A checker may flag human writing. Keep your original draft, notes, and document history. An unexpected result is a reason to inspect the assessment—not an instruction to rewrite every sentence.
“I used AI to help. What should I review?”
Identify whether the assistance involved brainstorming, generated text, editing, or translation. Check the applicable rules, verify claims and citations, and disclose assistance where required.
“Someone else wrote it. Can I rely on it?”
Ask about the writing process and agreed use of AI. Review the sources, reasoning, and fit with the brief. A score can support that conversation but cannot replace it.
Your review workflow
How to use the ChatGPT detector before submission
- 01
Save the draft
Keep the version you are checking. If you revise later, you will know which text produced the assessment.
- 02
Paste a passage
Use a coherent section. A title, bibliography, or short quotation may not represent the whole document.
- 03
Read the definition
Check what the output measures. Confidence and the share of flagged text are different measurements.
- 04
Choose a next step
Review the context or improve the draft. Then finish your source, formatting, and submission checks.
After the check
Got your result? Here is what to review next.
Use the assessment to ask better questions about your work. Avoid changing the text solely to reach a particular number.
Few signs of AI writing
Finish the content review. Confirm that claims are supported, quotations are accurate, and the final version meets the brief. A low result does not verify human authorship or originality.
An uncertain assessment
Identify what needs context. Does the passage combine your writing with quotations, supplied material, or several contributors? Read the explanation and keep uncertainty visible.
Stronger signs of AI writing
Review the process. If AI was used, verify its contributions and check disclosure rules. If the text is yours, preserve the original and gather drafts before deciding whether to revise.
A change after editing
Compare the versions. A score change means the tool assessed the revision differently. It does not establish that the new draft is more accurate, original, or suitable for submission.
Make sense of the number
What does your AI detection score mean?
Illustrative score
55/100
Not automatically “55% written by ChatGPT.”
The interpretation depends on the measurement. Read the definition attached to the result before deciding what the number represents.
Confidence is different from text share
A confidence score describes an assessment under a model’s method. A flagged-text percentage may describe material that met a threshold. Neither automatically measures how much AI assistance was involved.
There is no universal passing score
A public checker cannot establish another organization’s threshold or predict a reviewer’s decision. Follow the submission policy rather than treating a number as permission.
Different detectors can disagree
Models, thresholds, and score definitions differ. Do not assume two percentages measure the same thing. Averaging several results does not create a verified authorship assessment.
When your own writing gets flagged
An unexpected flag? Preserve the process.
A false positive happens when human writing is classified as AI-generated. Start by keeping the evidence of how the document developed, rather than repeatedly rewriting it to chase a lower score.
Keep the original text and result
Save the assessed passage, date, tool, and explanation. This lets you discuss the actual assessment rather than reconstructing it later.
Review for real writing problems
A false-positive concern and a writing issue can exist separately. Correct unsupported claims, vague reasoning, and inaccurate citations because they affect the work.
Request a contextual review
Ask which passages raised concern and how the result is being interpreted. Explain your decisions and provide relevant drafts or notes.
Essays & academic submissions
Checking an essay before you turn it in?
A pre-submission check offers one assessment. It cannot reproduce a full academic review. Use it alongside the assignment rules and your understanding of the work.
Read the assignment’s AI rules
Confirm what is permitted for this assignment. If the policy is unclear about editing, translation, brainstorming, or generated text, ask the instructor. A detector cannot interpret permission on your behalf.
Make sure you can explain the work
Can you explain why you chose a source, how a paragraph supports the argument, and how you reached the conclusion? Those questions help you review your understanding.
Verify every citation
Open the material you cite. Confirm that it exists, its details are correct, and it supports the attached claim. A low AI score does not validate a reference list.
Keep the final submission version
Save the exact file you submit and relevant drafts. If a concern arises later, you can refer to the same document rather than an altered copy.
Will this match Turnitin or my school’s detector?
No matching result is guaranteed. This is an independent assessment, not a Turnitin report or a preview of your institution’s decision. Different systems can use different methods, thresholds, and document handling.
What detector do teachers and colleges use?
There is no single tool used by every institution. Ask your instructor or check the school’s policy to confirm the tools, interpretation, and review process.
What if I submit through Canvas?
Confirm which assessment services your institution uses with Canvas. Do not assume every course has the same integrations, settings, or approach to AI review.
Articles, reports & client work
Deliver work you can explain and support.
Outside school, requirements may come from an editor, publication, or contract. Check those directly rather than relying on a detection score.
Confirm the agreed use of AI
Establish whether assistance is permitted and what disclosure is expected. If reviewing another writer’s draft, ask about the process. Detection alone cannot establish compliance.
Verify confident claims
Open sources, check quotations, and trace numbers to the original material. Give special attention to precise claims without supporting evidence.
Review specificity and editorial fit
Does the draft answer the reader’s question and reflect the brief? Replace vague statements with verifiable details that improve the article.
Record substantive changes
Keep a clear handoff between the received draft and delivered version. Notes on source corrections, edits, and disclosed assistance help explain the final work.
Revise with a purpose
Improve the draft, not just the detection score.
Strengthen the argument
Make the main claim clear. Each paragraph should contribute evidence, reasoning, or necessary context. Remove repetition that adds length without helping the reader.
Add evidence you can verify
Use relevant examples, data, and sources. Do not invent personal anecdotes or details simply to make the passage appear more human.
Choose words you understand
Express the intended meaning accurately. Unusual synonyms and deliberate mistakes can make writing less clear without resolving questions about its origin.
Keep disclosure separate from detection
Changing a result does not change the rules. If assistance must be disclosed, follow that requirement regardless of the score.
Your final review
Four checks before you hit submit.
Use this checklist to organize your review. Checking a box records your progress on this page; it does not certify the document or predict acceptance.
Submission checklist
0 of 4 reviewedFrequently asked questions
Before you check.Before you submit.
Answers about free checks, school results, authorship, and your next steps.
Is this ChatGPT detector free?
Yes. You can check text without creating an account. Each check reads up to the first 2,000 words, so split a longer document into coherent sections.
Can this tell whether ChatGPT wrote my essay?
It can assess patterns associated with AI-generated writing. It cannot reliably establish that a specific model wrote the essay or identify the person who created it.
Can I check a Google Docs draft?
Yes. Copy the passage into the input field. Keep the original document and its revision history if you may need to explain your process.
Can grammar editing change a result?
Editing changes the text being assessed and may change a result. A detector cannot, by itself, reconstruct which edits were made or determine whether they were permitted.
Does a low score prove I wrote the work?
A low score is not proof of authorship. Drafts, source notes, document history, and your explanation of the work provide different forms of context.
Should I use several AI detectors?
Additional assessments may produce different results, but they do not automatically resolve uncertainty. Understand each tool’s output rather than choosing only the answer you prefer.
Can a humanizer guarantee a pass?
No. Rewriting cannot guarantee another detector’s response or an institution’s acceptance. It also does not remove applicable disclosure requirements.
Is AI detection a plagiarism check?
No. AI detection and plagiarism checking are different functions. This assessment does not establish whether a passage overlaps with existing sources—use the plagiarism checker for that.
Can a teacher use this to establish cheating?
A detection result alone cannot establish misconduct. Review the assignment rules, the work, and the student’s explanation alongside any automated assessment.
Can I check code, images, or watermarks?
This page is intended for prose assessment. Code detection, image analysis, and official watermark verification require separate methods and validation.
Is my text stored or used for training?
We do not use submitted text to train our own AI models or for advertising. Text may be held temporarily to produce your result and is then deleted or de-identified under our retention practices; the Privacy Policy has the details.
Your draft deserves a thoughtful review
Before you submit, take one more look.
Check for signs of AI writing. Understand the assessment, preserve your writing history, and finish the checks that a score cannot do for you.
Check My Draft for FreeAn informed review starts with the result—and continues with the work itself.