Corrections, not a rewrite
Grammar Checker: Fix Errors, Keep Your Voice
Correct the mistakes. Keep the way you sound.
Six writing goals, from Academic to Creative, shape what gets flagged. You read each suggestion, decide, and copy the result when you are done.
- Free, no sign-up
- You approve each change
- Writing score included
Run the check and each suggestion shows up here with its reason. Nothing in your draft changes until you accept it.
The check runs on this site and reads the first 2,000 words; suggestions are automated, and none is applied until you accept it.
Light-touch editing
It marks the problem words and leaves the rest alone.
A grammar checker should not hand you back a different writer. Each suggestion is meant to cover the smallest stretch of text that needs work, and nothing in your draft changes until you accept it.
Fixes stay inside the underline
A suggestion replaces only the words it underlines. Outside that span, your sentence order and paragraph structure stay as you wrote them.
Six categories
Grammar, spelling, punctuation, and capitalization catch mistakes. Clarity and style point to wording that could read more easily. Filter the list to work through one category at a time.
Error, Improvement, or Optional
Every suggestion carries a label that separates likely mistakes from matters of taste. The labels are automated too, so read the explanation before you decide.
Writing goals
Choose a goal, and the grammar checker adjusts what it flags.
The goal tells the checker how strict to be about tone and wording. Academic is selected when the page opens; switch it before you run the check.
General
Real mistakes come first, with a light touch on style. A sensible pick for mixed or everyday writing.
Academic
Leans formal. Contractions, casual wording, and loosely stated claims are flagged more readily, which suits essays, lab reports, and theses.
Business
Favors concise wording. Expect notes on padding and on phrasing that is too relaxed for reports, proposals, and client email.
Professional
Aims for polished workplace English, with attention to informal tone and careless phrasing in applications, memos, and cover letters.
Casual
Contractions and a relaxed tone are fine here. Suggestions are meant to focus on clear errors and sentences that are hard to follow.
Creative
The checker is asked to preserve voice and rhythm, flagging clear errors rather than smoothing out style you chose on purpose.
Judging suggestions
Accept it, dismiss it, or rewrite it yourself.
Suggestions are automated and sometimes wrong. Read the underlined words, the proposed change, and the short explanation together before you decide.
- …corrects a plain mistake
- Accept it. A wrong verb form, a misspelled word, or a missing period is rarely a question of style, whatever goal you picked.
- …shifts what you are claiming
- Dismiss it. A change that softens, strengthens, or narrows a statement is an edit to your argument, not to your grammar.
- …touches a name, a term, or a quotation
- Leave it if the original is right. The checker does not know your field or your sources, so the spelling of people, products, and technical terms, and the wording inside quotation marks, are yours to confirm.
- …is labeled Optional
- Treat it as a preference. Accept it only if you would have made the same change on a careful reread of your own.
- …has no replacement attached
- Some suggestions only give advice, so there is no Accept button. Rework the passage in your own words if you agree, or dismiss it.
- …does not sound like you
- Dismiss it, even if it is technically fine. A sentence that reads correctly but unlike you does not improve your draft.
The writing score
Read the writing score as a progress bar for your review.
Example writing score
86/100
Not a grade, and not an AI score.
The number summarizes the suggestions that are still open. It says nothing about your argument, your evidence, or how the draft was written.
Four readings feed it
Grammar, clarity, style, and readability appear beside the score. Mistakes in grammar, spelling, punctuation, and capitalization carry the most weight.
It moves as you decide
Accepting or dismissing a suggestion takes it off the open list, so the score can go up either way. A higher number after a round of dismissals means you worked through the list, not that the text got better.
Long sentences lower readability
Readability follows the average sentence length of the current text, so very long sentences pull it down even when they are grammatical.
Tone is a description
The tone label, such as Formal or Casual, describes how the draft reads right now. Compare it with the goal you chose; it is not a verdict.
Editing and AI detection
Edited text can score differently. That proves nothing either way.
Some writers worry that cleaning up a draft will get it flagged by an AI detector; others hope it will make a flag disappear. Neither outcome tells you who wrote the text.
1. Keep the version you started with
Save the draft from before the corrections, along with outlines and revision history. If questions come up later, they show the path from first draft to final.
2. Fix errors before you touch style
Mistakes are worth correcting in any draft. Clarity and style suggestions change more of your wording, so take them one at a time.
3. Use Accept all only after a read-through
It applies every replacement in the current view and dismisses advice-only notes in one click. Scan the list first so nothing slips in that you would have turned down.
4. Compare versions, not just numbers
If you run the AI detector before and after editing, treat the two results as readings of two texts. Look at which sentences were highlighted, not only the headline figure.
5. Find out whether editing tools need disclosing
Some policies count automated grammar tools as AI assistance. Read the rules and name the tool wherever they ask you to.
What it does not check
A clean grammar pass leaves other questions open.
The grammar checker reviews language. These parts of a final review sit outside it.
Facts and figures
A sentence can be perfectly grammatical and still be wrong. Dates, numbers, and claims need checking against your sources.
References
It may correct punctuation inside a reference, but it does not check that the source exists or says what you cite. The citation checker looks up the main sources in a passage on the web and shows which ones it can find.
Overlap with other writing
Whether a passage repeats wording from published sources is a separate question, and it calls for a plagiarism check.
Very long documents
Each check reads the first 2,000 words. Split a long paper at section breaks so every part is reviewed and suggestions stay in context.
Frequently asked questions
Before you accept a single change.
Accounts, word limits, the writing score, and what editing does to an AI result.
Do I need an account to check grammar?
No. The grammar checker is free and works without signing up. It reviews the first 2,000 words you paste, which means a long paper is best checked one section at a time.
Will the suggestions make my writing sound generic?
They change only the words they mark, and only when you accept them. Error fixes rarely affect your voice; clarity and style suggestions reword more, so accept those selectively.
Will an AI detector read my corrected draft differently?
It might. Corrected text is new input, so a detector can score it higher, lower, or the same as before. Either way, the result is not evidence of who wrote the draft or of whether your rules allow the edits.
Why do some suggestions have no Accept button?
Those suggestions offer advice without a ready replacement. Read the explanation, rewrite the passage yourself if you agree, or dismiss it.
Why did my writing score rise after I dismissed suggestions?
The score is based on the suggestions still open, so dismissing one can raise it just as accepting one can. It reflects how far your review has come, not the quality of your ideas.
Does the grammar checker detect AI or verify sources?
No. It reviews language only. Try the AI detector for signs of AI writing, and the citation checker when you want the key sources you cite looked up.
Ready when your draft is
Correct the draft. Keep the writer in it.
Pick a writing goal, run the check, and keep only the corrections that still sound like something you would write.
Proofread My DraftFree, no sign-up, up to 2,000 words per check.