How to use the grammar checker
Paste your text, choose the English variant you write in, and run the check. You get two things back: the corrected text, ready to copy, and a short “what changed” list naming each fix. Read the list before you copy the text. It is the fastest way to learn which mistakes you make repeatedly, and it lets you reject a change you disagree with.
The tool handles about 1,000 words per request and the free quota is 5 checks a day. Your text is processed and returned; nothing is stored.
US, UK or Indian English
Spelling and a few conventions differ, and a checker set to the wrong variant will “fix” words that were already right.
| Variant | Spelling | Notes |
|---|---|---|
| US | color, organize, program, center | Double quotes, period inside the closing quote |
| UK | colour, organise, programme, centre | Single quotes common, “-ise” endings |
| Indian | colour, organise, programme, centre | UK spelling; accepts “lakh”, “crore”, “prepone” and similar established Indian usage |
Pick the variant your reader expects, not the one you learned. A CV for a US company should be checked in US English even if you were taught British spelling at school.
Worked example
Before:
Me and my team has completed the report yesterday, however their are still some datas which need to be verify. Please find attached the same and revert back at the earliest.
After (Indian English):
My team and I completed the report yesterday; however, there are still some data points that need to be verified. Please find the report attached and reply at the earliest.
What changed:
- “Me and my team has” → “My team and I” with plural verb agreement.
- “has completed … yesterday” → “completed”: a finished time expression takes the simple past.
- “their” → “there”.
- “datas” → “data points” (data is already plural).
- “need to be verify” → “need to be verified”.
- “revert back” → “reply” (redundant; “revert” means to go back to a previous state).
- Comma splice before “however” replaced with a semicolon.
The direct tone of the message is untouched. That is the point: a grammar checker should fix errors, not rewrite your voice.
When to use it, and when not to
Use it on anything judged on its correctness: job applications, client emails, assignment submissions, product descriptions, LinkedIn posts. It is especially useful for non-native writers who know the rules but slip on articles, prepositions and subject-verb agreement under time pressure.
Do not use it on poetry, dialogue in fiction, or deliberately informal writing where “wrong” grammar is a choice. It will also try to correct transcribed speech that you may want verbatim. And do not treat it as permitted help in assessments that forbid outside tools; check your institution’s rules.
Tips
- Check one email or one section at a time so the “what changed” list stays easy to scan.
- If the same type of error appears more than twice, that is a habit worth learning about. A quick search for the rule will save future checks.
- Run the Readability Checker on this site afterwards if the writing is correct but still hard to follow. Grammar and clarity are different problems.
- For text pasted from a PDF or chat, use the Text Cleaner first so stray line breaks are not mistaken for sentence ends.
Limitations
A language model is very good at common errors and less reliable on rare or ambiguous ones. It can occasionally introduce a change that alters meaning, such as switching “which” to “that” and turning a non-restrictive clause into a restrictive one, or changing a tense that was correct in context. It does not know your house style, your product names, or that a misspelling inside a quotation must stay. It is not a plagiarism checker and cannot verify facts. Always re-read the corrected text once as a reader, not just as a writer, before you send it.
Read next
- How to Write a Professional Email With AI (Not Like a Bot) — A four-step workflow for drafting emails with ChatGPT and fixing the tone, with before/after templates for follow-ups, complaints and requests.
- Paraphrasing vs Plagiarism: Where the Line Actually Is — When paraphrasing becomes plagiarism, the citation rules that apply, a 4-step method for doing it properly, and bad vs good examples.
Frequently asked questions
Does it rewrite my sentences?
Only where needed to fix an error. It is instructed to keep your wording and tone, so it will not turn casual text into formal text.
Which English does it use?
Choose US, UK or Indian English. Spelling conventions (colour/color, organise/organize) follow your choice.