AI Essay Grader · Free, No Sign Up Required See your essay how your professor sees it.
PerfectEssayWriter.ai's essay grader evaluates your paper across six dimensions (thesis, argument, evidence, structure, clarity, and citations) and returns a letter grade with a numeric score in under 10 seconds.
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How to grade your essay with AI, 3 steps
Paste, grade, fix. No account needed for your first three reports.
Paste or upload your essay
Paste your text directly, upload a .docx or .pdf, or load a sample. Works on any device, no account required for your first three reports. You can grade your paper, check a draft, or run a practice grade before any deadline. Set your grade level and essay type so the AI calibrates correctly. A high school argumentative essay is graded to a different standard than a graduate research paper.
Get your full AI grade report
The AI essay grader evaluates your essay across six dimensions, thesis, argument, evidence, structure, clarity, and citations, and returns a letter grade with a numeric score. You also get an AI detection risk rating so you can see how your essay would likely perform on Turnitin before you submit.
Fix the right things first
The Fix List tab ranks every issue by grade impact vs time to fix, so if you have two hours before your deadline, you know exactly what to fix first. The My Essay tab highlights every sentence that needs attention directly in your text. The Structure tab maps your argument so you can see if your logic flows from intro to conclusion.
What our AI essay grader evaluates
Six grading dimensions, inline annotations on every sentence, and a prioritised fix list. Whether you need an essay grader, a paper grader for a research assignment, or feedback on a single paragraph, the same analysis applies. PerfectEssayWriter.ai's essay grader checks all six dimensions on every submission and returns a numeric score and letter grade in under 10 seconds.
Thesis & Argument
Is your thesis specific enough to be arguable? Does every body paragraph connect back to it? The grader flags vague claims and missing links between your evidence and your central position.
Evidence & Support
Every claim is checked for supporting evidence. Unsupported assertions are flagged as issues. The grader also checks whether your sources are used effectively or just dropped in without analysis.
Structure & Flow
The Structure tab produces a visual map of your essay's logic, hook, thesis, each body paragraph, counterargument, and conclusion, showing exactly where your argument breaks down or goes missing.
Citations & References
APA, MLA, Chicago, and Harvard citation formats are checked for consistency. Missing page numbers, incorrect year placement, and formatting errors in your Works Cited are all flagged with specific fixes.
Clarity & Style
Academic register, sentence variety, and wordiness are all assessed. Informal phrases that break your academic tone are highlighted directly in your essay text so you can find and fix them immediately.
AI Detection Risk
The report includes a Turnitin risk rating, low, medium, or high, so you can assess your essay before submission. Sentences most likely to flag are highlighted in the My Essay tab so you can revise them first.
Free AI essay grader, no sign up required
Start grading immediately, no account, no credit card, no sign-up form. Your first three full reports are free. Create a free account to unlock five reports every month, permanently.
Our free AI essay grader gives you the full report, letter grade, category scores, inline annotations, and Fix List. Use it to rate your essay before any deadline. No sign up, no credit card.
Sign up free to get 5 grader reports every month, download your report as PDF, and unlock the full Fix List. No credit card required.
10 to unlimited reports per month with plagiarism checking inside the grader, faster output, and access to all 30+ AI writing tools.
AI essay grader for high school, college, and graduate students
The grading criteria change based on your level. Whether you are grading a high school paper or a PhD dissertation, the rubric shifts accordingly.
Middle School
Feedback focuses on clear topic sentences, basic paragraph structure, and developing a central idea. Scoring is calibrated to what a middle school teacher would reasonably expect.
High School
The high school essay grader checks for a defensible thesis, organised argument, supporting evidence, and consistent academic tone, the criteria that matter most in AP and IB coursework.
Undergraduate
University-level grading checks citation accuracy, argument depth, engagement with counterarguments, and the quality of evidence. At undergraduate level, PerfectEssayWriter.ai's grader weights citation accuracy and engagement with counterarguments most heavily. These are the two criteria college instructors most commonly cite when deducting marks. This is also where most students use the rubric upload feature.
Graduate & PhD
Graduate essays are graded on scholarly rigour, specificity of claims, quality of sources, and the sophistication of the argument. Strictness mode can be set to reflect demanding examiners.
Argumentative, Analytical, Research Papers: Essay Types Our AI Grader Evaluates
Different essay types require different grading criteria. Select your type before grading so the AI applies the right rubric.
Argumentative essays
The argumentative essay grader checks whether your position is clearly stated, whether you address counterarguments, and whether your evidence actually supports your claims rather than just illustrating them.
Analytical essays
Analytical grading looks at how well you interpret and break down a text, idea, or dataset, not just whether you describe it. Depth of analysis and use of textual evidence are weighted heavily.
Research papers
Research paper grading checks citation accuracy, source quality, argument coherence across a longer piece, and whether your introduction and conclusion properly frame your findings.
College application essays
Personal statement grading focuses on voice, specificity, narrative structure, and whether the essay answers the prompt. Generic language and clichéd openings are flagged as issues.
Grading with a custom rubric
Paste your professor's rubric into the advanced options and the AI grades against your specific criteria rather than generic academic standards. This is the most accurate way to predict your actual grade.
AI Essay Grader: Common Questions Answered
Yes. You can grade three essays without creating an account, no email address, no credit card, no sign-up required. This free essay grader gives you the full report on your first three grades, letter grade, six category scores, inline annotations, and Fix List. A free account (also no credit card) gives you five grader reports every month permanently. Paid plans start at $8.99/month for ten reports and unlock plagiarism checking, PDF downloads, and access to all 30+ AI writing tools.
PerfectEssayWriter.ai's essay grader has a 93% accuracy rate versus human graders for objective criteria like citation format, argument structure, unsupported claims, and academic tone. For subjective criteria like originality or voice, treat it as a strong directional signal rather than a final verdict. The more context you give (grade level, essay type, and rubric), the more accurate the prediction.
Yes. The grader accepts .pdf, .docx, .doc, and .txt file uploads in addition to pasted text. Click the Upload file button above the essay input to attach your document. PDF and Word files are parsed on submission, the extracted text is then graded and used to generate inline annotations in the My Essay tab.
The AI detection risk rating, low, medium, or high, estimates how likely your essay is to be flagged as AI-generated by tools like Turnitin. It is based on writing patterns including sentence uniformity, hedging language, and absence of personal voice. A medium or high rating does not mean your essay is AI-generated, it means certain patterns are present that detection tools commonly flag. The My Essay tab highlights the specific sentences most likely to trigger a flag so you can revise them before submitting.
Yes. Open the Advanced options panel below the grade level and essay type selectors, and paste your rubric criteria into the Rubric field. The AI will weight its scoring toward your rubric rather than generic academic standards. This is the most reliable way to get feedback that predicts your actual grade from a specific professor or institution.
The grader supports Middle School, High School, Undergraduate, Graduate / Masters, and PhD / Doctoral levels. Selecting the correct level matters, the grading criteria, score thresholds, and feedback tone all adjust accordingly. A B+ at high school level reflects different writing standards than a B+ at graduate level.
Most essays are graded within 5 to 10 seconds. Longer papers (2,000+ words) or essays submitted with a detailed rubric may take up to 15 seconds. The loading indicator shows the grading progress in real time.
No. Using an essay grader or paper grader before submission is equivalent to asking a tutor or peer to review your draft, it helps you identify weaknesses and improve your own writing. The grader does not write your essay for you. It evaluates what you have written and tells you where to focus your revision. The final work is entirely yours.
Yes. Free account holders and paid subscribers can download the full grade report as a PDF using the Download Report button below the grade output. Anonymous users (no account) need to sign up free to access downloads. The PDF includes the letter grade, numeric score, all six category scores, the full feedback for each category, and the Fix List.
Yes. Teachers can upload a custom rubric to grade essays against specific criteria, download detailed PDF reports for each student, and use the strictness setting to match their own grading standard. Paid plans include higher monthly report limits suited to grading multiple student essays per month.
The AI essay grader gives you a letter grade (A through F) and a numeric score out of 100, calibrated to your selected grade level and essay type. For the most accurate prediction, set the correct level and essay type before grading, and paste your professor's rubric into the Advanced options panel if you have one. The grade is a prediction designed to match what a fair professor would assign using the same criteria. It is not a guarantee, but reliable for objective criteria like citation format, argument structure, and academic tone.
Yes. Select "Narrative" as your essay type and set your grade level. The grader shifts its criteria toward storytelling elements: narrative structure, voice consistency, scene or character development, and whether the piece answers the prompt. Citation checking is turned off for narrative submissions. The same tool works for short stories, personal narratives, and college application essays with a narrative focus.
Yes. Paste your assignment prompt or question into the "Assignment question or prompt" field in the Advanced options panel. The grader then checks whether your essay actually answers the question set, a common reason essays lose marks even when the writing is technically strong. This works for any essay type and any grade level.
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