Free AI Essay Grader for GRE, IELTS & SAT
WitPrep's free AI essay grader scores GRE AWA (0–6), IELTS Writing Task 1 and Task 2 (Band 0–9), and SAT essays in 30–60 seconds, calibrated against ETS, British Council/IDP, and College Board official rubrics. Grade unlimited essays without signup, get per-criterion sub-scores, and receive 3–5 concrete revision suggestions per submission.
How It Works
- Choose your exam type (GRE, IELTS, or SAT)
- Paste your essay (minimum 50 words)
- Get instant section-by-section scores, strengths, weaknesses, and improvement suggestions
Scoring Criteria
| Exam | Scale | Criteria |
|---|---|---|
| GRE AWA | 0–6 (half-point) | Structure, Argument Development, Evidence, Language, Grammar |
| IELTS Writing Task 1 | Band 0–9 | Task Achievement, Coherence & Cohesion, Lexical Resource, Grammatical Range & Accuracy |
| IELTS Writing Task 2 | Band 0–9 | Task Response, Coherence & Cohesion, Lexical Resource, Grammatical Range & Accuracy |
| SAT Essay | 2–8 per dimension | Reading, Analysis, Writing |
WitPrep vs Paid Alternatives
| Tool | Cost | Exams | Turnaround |
|---|---|---|---|
| WitPrep AI Essay Grader | Free, unlimited | GRE, IELTS, SAT | 30–60 sec |
| ETS ScoreItNow! | $20 for 2 GRE essays | GRE only | Minutes |
| British Council Road to IELTS marking | Bundled with paid prep | IELTS only | 3–5 days |
| Private tutor | $30–$100 per essay | Any | 1–3 days |
Why Choose Our Essay Grader
- Official rubric calibration — ETS (GRE), British Council / IDP / Cambridge (IELTS), and College Board (SAT).
- Per-criterion feedback — see exactly which rubric dimension cost you points.
- Instant turnaround — under 60 seconds, typically 45.
- Unlimited free submissions — revise, re-grade, repeat until the score stabilises.
- No signup required — open the tool and paste.
Frequently Asked Questions
Is the WitPrep essay grader really free?
Yes — completely free, no signup, no credit card, no submission limit. Paste your essay, pick the exam, get the score.
How accurate is the AI compared to a human grader?
Calibration runs against published ETS sample essays put the GRE AWA score within ±0.5 of the human score for ~80% of essays. IELTS lands within ±1 band for ~85% of essays. Use it as a fast, free first pass; pair with human review before test day if you can.
What types of essays can I grade?
GRE Analytical Writing (Issue and Argument), IELTS Writing Task 1 (Academic and General Training) and Task 2, and SAT Rhetorical Analysis essays.
How long does it take to grade an essay?
Typically 30–60 seconds. The AI reads the essay, evaluates each rubric criterion separately, then composes the feedback and final score.
Can I grade the same essay multiple times after revising?
Yes — submissions are unlimited. Apply the revision suggestions, re-grade, and watch the score move. This is the fastest way to build a feel for what the rubric rewards.
Will my essay be stored or shared?
Essays submitted without an account are processed in-memory and not retained. Logged-in users see their grading history in their account dashboard and can delete it at any time.
Does this work for IELTS General Training Task 1 letters?
Yes. Pick IELTS Task 1 and choose the General Training prompt type. The grader scores it on the official IELTS letter-writing band descriptors.