Free essay checker
Paste your essay to fix grammar, spelling and punctuation in one click. Then check the same essay for plagiarism and AI writing below. No sign-up.
Paste your text and click “Check grammar”. Each issue is underlined by category: grammar, spelling, punctuation or style.
- Grammar
- Spelling
- Punctuation
- Style
Free to use. Your text is checked and not stored.
- No sign-up required
- Free up to 10,000 characters
- 14 languages, 6 English variants
- Grammar check free, no sign-up
- Plagiarism and AI check below
- Never used to train AI
Check your essay for plagiarism and AI
Paste the corrected essay here. Your first check is free without an account, up to 1,000 words. Plagiarism needs at least 30 words and AI detection at least 50.
Three checks before you hand it in
A grammar check alone misses two things teachers look for. This page also shows where your essay matches other sources and which sentences read as AI-written.
Grammar, spelling and punctuation
Subject-verb agreement, verb forms, typos, commas, apostrophes and repeated words. Each issue is underlined with a short explanation and, where there is one, a one-click fix.
Plagiarism
The report shows which passages match other sources. Each match shows the source next to your text, so you can add a citation or rewrite the passage.
AI writing
Every sentence gets a likelihood of being AI-written, and the essay gets an overall score. It is a probability, not proof.
How to check your essay in 4 steps
Fix the mechanics
Paste your essay in the checker at the top and click “Check grammar”. Apply or ignore each suggestion.
Check for plagiarism
Paste the corrected essay in the second box. Matches are underlined and linked to their sources.
Check for AI writing
Tick “Also run AI detector” to get both checks in one report, then read the flagged sentences in context.
Cite and recheck
Add the missing citations, rewrite what needs it, and check the grammar once more before you submit.
What you can check for free
The limits without an account, stated up front.
| Check | Free without an account | Good to know |
|---|---|---|
| Grammar, spelling and punctuation | Up to 10,000 characters per check, about 1,500 words. Check as often as you like. | Does not use any words from your plan. |
| Plagiarism | First check free, up to 1,000 words. | Needs at least 30 words. |
| AI detection | First check free, up to 1,000 words. | Needs at least 50 words. |
A free account gives you 3,000 words every month. See pricing for longer essays.
What an essay checker can’t do
It finds errors, matches and AI-like sentences. The thinking is still yours.
It does not grade
You get issues, matches and scores to act on, not a mark out of 100. Your teacher’s rubric decides the grade.
It does not rewrite
The grammar check is rule-based and suggests specific fixes. Nothing changes until you click, so the essay stays in your own words.
It does not judge the argument
Thesis, structure and evidence still need a reader. Use the checks to clear the errors that distract from them.
Before you submit, check the length with the word counter, build your references with the citation generator, and read how to avoid plagiarism.
More free writing tools
- Word counter Count words, sentences and paragraphs, with reading time.
- Character counter Count characters with and without spaces against common limits.
- Grammar checker Check grammar, spelling, punctuation and style in a whole text.
- Sentence checker Find and fix grammar, spelling and punctuation mistakes in a sentence.
- Punctuation checker Check commas, apostrophes, colons and quotation marks.
- Plagiarism checker Scan finished writing for copied or closely paraphrased text.
- AI detector See which sentences read as AI-written.
- Citation generator Build APA, MLA and Chicago citations for your sources.
Essay checker questions
Check your essay before you hand it in
Grammar is free with no sign-up. Your first plagiarism and AI check is free up to 1,000 words.