A clearer view of your writing

Free AI Checker for Essays and Papers

Review your writing for signs of AI-generated text.
Check your draft, explore flagged passages, and decide where a closer review would help.

Free to useOpen instantlySentence-level feedback
0 words

Your results will appear here. See your writing assessment and passages to review after running a check.

Feedback you can use

Review Your Writing with a Free AI Detector

Use automated feedback alongside your judgment to examine wording and strengthen explanations.

01

Find Passages to Review

Look at highlighted text in context. Decide whether each passage explains your point clearly and includes enough detail.

02

Understand the Result

A flagged passage is a reason to investigate. An automated estimate cannot prove who or what wrote it.

03

Improve Your Draft

Check evidence, sharpen explanations, and replace vague claims with specific observations.

Simple from the first draft

How to Use the AI Checker

Three steps to a more informed writing review.

1

Paste Your Draft

Add the passage you want to examine. Include enough context to make the feedback useful.

2

Start the Analysis

Run the check to see the assessment and identify passages that deserve attention.

3

Evaluate and Revise

Compare the feedback with your notes and sources. Edit where it improves clarity and meaning.

Independent writing review

Review AI-Writing Signals Before Submission

T-Checker offers a preliminary review before you submit a draft. Examine the feedback and identify questions to resolve before handing in your work.

Automated results are estimates and should be evaluated alongside the text and its context.

01

A Focused AI-Writing Review

T-Checker highlights writing signals and passages that may benefit from closer review.

02

Prepare for Submission

Verify your argument, attribute quotations, and follow your assignment’s rules for AI assistance.

Built around your draft

An AI Checker for Academic Writing

Make a thoughtful review part of your writing process.

✎

Student Essays

Review broad claims and find places where examples or evidence would strengthen your argument.

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Research Papers

Read feedback alongside your notes. Verify summaries, citations, and the distinction between sources and your own analysis.

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Reports and Coursework

Check whether each section answers the task and contributes something specific to the discussion.

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Teaching and Editorial Reviews

Identify passages for discussion. Consider writing history, sources, and the author’s explanation alongside automated results.

Read results in context

What Does an AI Detection Score Mean?

An automated assessment offers one perspective on a text. It cannot establish authorship or certify academic integrity.

A Higher Score Needs Context

Review flagged material and consider how it was written. Formulaic language and editing can influence results.

A Lower Score Is No Guarantee

Continue checking accuracy, attribution, and the permitted use of writing assistance.

Detection Can Make Mistakes

Human writing may be flagged, and generated text may be missed. Use results as part of a broader review.

Writing-pattern analysis

What Does the AI Detector Look For?

The AI checker evaluates combinations of linguistic signals across your text. No single pattern proves AI use, and ordinary human writing can contain the same characteristics.

Predictable Sentence Structure

Repeated sentence shapes and highly uniform phrasing can make a passage appear more mechanically constructed.

Repetitive Words and Phrases

Recurring transitions, stock expressions, and repeated vocabulary may contribute to an AI-writing signal.

Generic Academic Language

Polished but nonspecific claims can lack the concrete evidence, perspective, or detail expected in original academic writing.

Uniform Rhythm and Tone

Generated passages may maintain unusually consistent sentence length, cadence, and tone across multiple paragraphs.

Low Context or Specificity

Broad explanations without examples, source-based detail, or discipline-specific reasoning may deserve closer review.

Overall Pattern Combinations

The detector assesses signals together across the passage. Results can change with text length, editing, genre, and writing style.

AI writing tools

Detect Writing from ChatGPT, Claude, Gemini, and More

Check text created or assisted by popular AI writing tools. The detector can identify writing signals, but it cannot reliably determine which specific model produced a passage.

ChatGPTGPT-4 / GPT-5ClaudeGeminiPerplexityOther AI writing tools

How people use T-Checker

AI Checker Reviews from Students and Educators

Writers and reviewers use the AI score and sentence highlights to focus their attention before a deeper manual review.

★★★★★

“The sentence-level view helps me identify passages that deserve a conversation. I still review sources and draft history, but the report gives me a practical place to begin.”

Dr. Michael Reed
Dr. Michael Reed
University Professor
★★★★★

“I find the highlights more useful than a score alone. They let me discuss specific wording with students and ask how an idea or paragraph developed.”

Emily Carter
Emily Carter
High School Teacher
★★★★★

“I checked an essay before submission and found a few generic paragraphs. Revisiting those sections helped me add examples that were actually connected to my argument.”

Jordan Lee
Jordan Lee
College Student
★★★★★

“The paper checker was easy to use and made it clear where to look. I compared each flagged section with my notes before deciding whether it needed revision.”

Daniel Kim
Daniel Kim
Graduate Student
★★★★☆

“T-Checker gives me a quick second opinion on repetitive or formulaic wording. I appreciate that the report points to individual sentences instead of stopping at a percentage.”

Sofia Martinez
Sofia Martinez
Academic Writer
★★★★★

“There is no lengthy setup: I paste the draft, run the AI check, and review the marked lines. It fits easily into my final proofreading routine.”

Maya Patel
Maya Patel
Student Blogger

Your questions, answered

T-Checker AI Detector FAQs

Common questions about reviewing AI-writing signals with T-Checker.

How does T-Checker analyze writing?

T-Checker evaluates combinations of linguistic patterns and highlights passages for closer review. Its result is an estimate, not proof of authorship.

Can I use this AI checker for free?

Yes. Use the free check available on this page. Any applicable usage limits should be shown with the tool.

Can human-written text be flagged as AI?

Yes. False positives are possible. Consider drafts, research notes, sources, and writing history when reviewing a result.

Is AI detection the same as plagiarism checking?

No. AI detection estimates whether a text shows characteristics associated with generated writing. Plagiarism checking examines overlap with sources.

Can I check text created with ChatGPT or other AI tools?

You can submit that text, but the result cannot reliably identify which tool produced it.

What should I do after receiving a high score?

Review the passages, verify evidence, and strengthen your reasoning. Follow any disclosure requirements for AI assistance.

Give Your Draft One More Review

Examine your text, consider the feedback, and revise with purpose.