The IELTS exam itself never grades this way. Examiners assess four separate categories, then combine them into your overall band. A checker that skips this step skips the part that actually helps you improve.
How Our Free AI IELTS Writing Checker Scores Your Essay
Band9AI's checker works the way a real examiner does. You submit your essay, and instead of one grade, you get four separate scores. Each one ties to a specific part of your writing.
You'll see exactly where you're strong and exactly where you're losing marks. That's the difference between a grade and IELTS writing correction you can actually act on.
Mapping Feedback to the 4 Official IELTS Criteria
The IELTS Writing test uses four official band descriptors. Band9AI's checker maps every essay to these four: Task Achievement, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy. No blended number, just the breakdown.
Here's what each one actually measures:
- Task Achievement, Did you answer the question fully, with a clear position and relevant ideas?
- Coherence and Cohesion, Does your essay flow logically, with clear paragraphing and linking?
- Lexical Resource, How varied and precise is your vocabulary?
- Grammatical Range and Accuracy, Can you use a mix of sentence structures accurately?
Veteran IELTS examiners consistently note that most Band 6 essays lose marks not from grammar errors alone but from weak cohesion and underdeveloped ideas. A single overall score hides exactly that category from you.
Instant Band Score Predictor vs Human Examiner Accuracy
How accurate is an AI IELTS writing checker compared to a real examiner? It's a fair question. The honest answer: very close, but not identical.
An AI IELTS band score predictor trained on the official criteria can flag the same issues an examiner would catch, like a missing conclusion or overused linking words. What it can't fully replicate is the subjective judgment call an examiner makes on borderline essays, the kind that could go either way between two adjacent bands.
That's actually the strongest argument for a criterion-level breakdown. Most self-assessed IELTS writing scores drift by a full band or more from official results. Mainly because test-takers can't apply the descriptors consistently on their own. A tool that shows you the reasoning behind each score, not just the final number, closes that gap. You're not guessing at your band. You're seeing exactly which criterion is holding you back.
Is there a truly free way to check your IELTS essay score online? Yes. Band9AI offers a free trial that doesn't require a credit card to start.
You can check your first essay without a credit card, then see exactly which of the four criteria caps your band score. You paste your essay, submit it, and get your criterion-by-criterion breakdown along with rewrite suggestions.
How many essays can you check for free before needing to upgrade? The free tier gives you a real first look at your writing, not a teaser. It's enough to test both Task 1 and Task 2 responses and see the depth of feedback before you decide whether to upgrade for ongoing, unlimited practice.
The feedback depth doesn't change between free and paid. You still get the full four-criterion breakdown and specific line-level suggestions. What changes with an upgrade is how many essays you can run through the checker as you keep practicing toward test day.
IELTS Essay Checker Online: Before-and-After Example Walkthrough
Numbers only tell part of the story. Seeing your own sentence rewritten at a higher band shows you what "better" actually looks like in practice.
From Band 6 to Band 9: A Sample Rewrite
Here's a typical Band 6 sentence from a Task 2 essay:
Band 6: "Many people think that technology is good for students but it also has some bad effects on their study."
It's understandable, but vague. The vocabulary is basic, and the sentence structure never varies.
Band 9 rewrite: "While technology undeniably enhances access to educational resources, its pervasive presence can also erode students' concentration and independent thinking."
The rewrite uses precise vocabulary, a subordinate clause for contrast, and a clear position. That single change moves the sentence from generic to examiner-ready.
This is exactly how a free AI IELTS writing checker should work. It doesn't just tell you the sentence is weak, it shows you the fix. For more side-by-side examples across full essays, you can see 20 Band 9 before/after essay fixes. If your rewrite still feels bland, a Band 9 vocabulary list with examples can help you build the precise word choices that raise your Lexical Resource score.
How to Check Your IELTS Essay Score in 3 Steps
Getting your score and feedback takes three steps. None of them require formatting your essay in any special way.
- Paste your essay. Copy your Task 1 or Task 2 response directly into the checker. No need to label paragraphs or add extra formatting.
- Get your instant score. Within seconds, you'll see your predicted overall band, plus a separate score for each of the four official criteria.
- Review the rewrites. Go through the flagged sentences and compare them against the suggested Band 9 versions. Apply the patterns to your next practice essay.
That's it. No downloads, no waiting for a human marker, no guessing which part of your essay needs work.