Corrections with reasons
Every suggested fix says what was wrong, so you learn the rule instead of clicking accept.
Grammar checker and proofreader for academic writing
A proofreader for people who want to know why a sentence was changed. Paste a paragraph or a whole paper and get a writing score with four sub-scores, a read of the tone, a clarity heatmap and individual corrections you can accept or reject one by one — the corrected text updates as you go.
Free account: 50 tokens every month · no card needed
What it does
Features of the Academic Grammar Checker
Writing score
An overall score with four sub-scores shows where the text is weakest.
Homophones in context
Catches their/there, then/than, affect/effect and similar mistakes by context.
Clarity heatmap
Highlights the sentences that are hardest to read.
Genre and tone
Choose academic, general, business, creative or email, and see the tone the text gives off.
Deep Clean
On Pro, the AI engine rewrites the flagged sentences for you.
How it works
From draft to result in 4 steps
- Paste or uploadPaste text or drop a PDF, DOCX or TXT file.
- Pick the genreAcademic applies the conventions of scholarly writing.
- ProofreadReview the score, the heatmap and each suggested correction.
- Accept what you agree withThe corrected text updates instantly; copy it when you are done.
Who it's for
Built for the people who write research
Non-native authorsClean, correct English before a paper goes to review.
ResearchersA last check on a manuscript, cover letter or reply to reviewers.
StudentsUnderstand and fix recurring mistakes in essays and theses.
ProfessionalsProofread reports and emails in the right register.
Questions
Frequently asked questions
Is the grammar checker free?
The rule-based proofreader runs on the free plan; the AI Deep Clean rewrite of flagged sentences is a Pro feature.
Does it understand academic conventions?
Yes — the academic genre follows scholarly conventions, so formal constructions are not flagged as errors just because they are long.
Can I reject a suggestion?
Every correction can be accepted or rejected individually.
Will it rewrite my whole paper?
No — it corrects what is wrong and leaves your wording alone. For rewording, use the paraphrasing tool.
Does it check LaTeX?
Paste the prose rather than raw LaTeX markup, or proofread inside the LaTeX editor with its AI assistant.
Can I proofread a cover letter or a reply to reviewers?
Yes — choose the business or email genre for letters, and the academic genre for the manuscript itself.
Related
Tools that pair well with it
Paraphrasing Tool
Paraphrase academic text in eleven modes and seven tones. Click any sentence for fresh rewrites, keep citations frozen and compare versions side by side.
Learn more →
AI Humanizer
Rewrite AI-assisted drafts so they read naturally and in your own voice. Keeps citations and key terms, polishes paragraph by paragraph, exports .docx.
Learn more →
Academic Translator
Translate academic text across 12 languages without losing meaning. Register control and a terminology lock keep technical terms consistent.
Learn more →
Try the Academic Grammar Checker now.
Open it in your browser — nothing to install.