Free IELTS Writing Correction Sites: What They Check and What They Miss

Short answer

Free IELTS writing correction sites are good at catching grammar, spelling and word-choice slips, and some can give a rough band estimate. They are weaker at judging whether you answered the task, whether your ideas develop logically, and whether your vocabulary sounds natural. Use them as a first filter, then check your essay against the four official criteria yourself.

What the IELTS Writing test actually marks

Before choosing a tool, remember what a real examiner looks at. Writing is 60 minutes. Task 1 needs at least 150 words (a chart, graph or process in Academic; a letter in General Training). Task 2 is an essay of at least 250 words, and it is worth twice as much as Task 1.

Both tasks are marked on four criteria:

• Task Achievement (Task 1) or Task Response (Task 2)
• Coherence and Cohesion
• Lexical Resource
• Grammatical Range and Accuracy

Notice that only one of the four is mostly about grammar. A correction site that only fixes grammar is looking at a quarter of the picture.

What free correction sites usually do well

Most free sites, grammar checkers and general AI chat assistants share the same strengths:

• Surface errors. Missing articles, subject-verb agreement, wrong prepositions and typos get flagged quickly.
• Repeated words. Many tools highlight when you use the same word four times in one paragraph.
• Sentence-level rewrites. You can see a cleaner version of a clumsy sentence and learn from the difference.
• Speed. You get feedback in seconds or minutes, not days, so you can write more drafts.

This is real value. If your essays are full of small errors, fixing them can lift your Grammatical Range and Accuracy score more than any new "advanced" vocabulary.

What they usually miss

Here is where free correction tends to fall short, and what I check manually.

Did you answer the question? A tool can polish a sentence that does not belong in the essay. Task Response asks whether you addressed every part of the prompt and kept a clear position. A grammar checker will not notice that you answered "discuss both views" with only one view.

Paragraph logic. Coherence is about how ideas connect: one main idea per paragraph, a clear link from claim to example, and linking words used for meaning rather than decoration. Free tools rarely say "this paragraph has two ideas" or "your example does not support your point".

Natural word choice. A suggestion like "utilise" instead of "use" may be grammatically fine and still sound forced. Lexical Resource rewards precise, natural collocations, not the longest word available.

Task 1 accuracy. In Academic Task 1 you must report the data correctly and pick out the key features. A tool that cannot see your chart cannot tell whether "sharply" fits the line you described.

Consistency over time. One correction fixes one essay. The score goes up when you notice that you make the same three mistakes every week.

A simple way to use free correction without being misled

This is the routine I would follow if I were preparing for Writing again.

1. Write under test conditions first. Set a timer for 40 minutes on Task 2 and 20 on Task 1. Do not use any tool while writing.
2. Self-check against the four criteria. Write one line for each: did I answer every part, is each paragraph one idea, is any word repeated, any sentence I am unsure about?
3. Then run a free tool. Compare its flags with your own notes. If it finds something you missed, add it to an error log.
4. Rewrite one paragraph. Do not just accept the corrected text. Rewrite it from memory without looking, so the fix sticks.
5. Track patterns. After four essays, count your most frequent error types. Those are your real study topics.

What about AI chat assistants?

You can paste an essay into a general AI assistant and ask it to mark it. This can be useful for explanations, because you can ask "why is this wrong?" and get a plain answer. Two cautions apply. First, the band score it gives can change if you ask twice, so treat it as an opinion, not a measurement. Second, it may not follow the official four criteria unless you list them in your prompt. Paste the criteria and ask for feedback on each one separately.

Where Toey fits

Toey's IELTS practice is web-only; there is no app yet. Writing tasks are graded by AI against the four criteria, and you get the result within a few minutes. The free plan includes 1 Writing task graded per week, and Pro raises that to 60 Writing tasks per month. These grades are estimates, not an official band, and they cannot replace a human examiner. They are most useful for spotting patterns across many essays, which a single correction cannot show. You do not need Toey to follow the routine above; it works with any tool, or with none.

How to choose between sites

When you compare free options, ask four questions:

• Does it mention the four official criteria, or only grammar?
• Does it explain each correction, so that you learn the rule?
• Can you keep a history of your essays to see patterns?
• Is it honest that the score is an estimate?

If the answer is no to most of these, use it only as a spell-checker, and rely on your own review for the rest.

Mistakes to avoid

• Chasing a perfect score from a tool. A tool saying "band 7" tells you little if the essay does not answer the prompt.
• Copying suggested phrases. Examiners see memorised language. Use a suggestion only if you could say it again naturally.
• Writing too many essays and reviewing none. One essay reviewed carefully teaches more than three skimmed.
• Ignoring time. A beautiful 300-word Task 1 can still lose marks if it took you 35 minutes.

One week plan

Monday: one Task 2 essay under time. Tuesday: self-check and tool check. Wednesday: rewrite the weak paragraph. Thursday: one Task 1. Friday: tool check and error log. Weekend: review the log and pick one error to fix the next week. This uses free tools well and keeps your attention on what the examiner marks.

Checked on 27 October 2026

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