Built for students, writers and researchers
Grammar Checker by ZeroTell · fix it, keep your voice
Paste your draft to correct grammar, spelling and punctuation. You get the clean text and a short note on every change, in the same language you wrote it.
Result
Your result will appear here.
What the Grammar Checker fixes
One pass covers the errors that slip past a quick reread.
Why use the ZeroTell Grammar Checker
See every change
Explanation mode lists each correction as a short before → after note, so you learn instead of just accepting edits.
Your language, not ours
Write in English, Spanish, German, Chinese or another language and the corrections stay in that language.
Your voice stays
Correct sentences are left alone. The checker fixes errors; it does not rewrite your style.
How to check your grammar
Paste your text
Add an essay, email, cover letter or any draft you want to clean up.
Pick a style
Neutral, formal, academic or friendly tells the checker which register to respect.
Choose the feedback
Get the corrected text only, or the corrected text with a note on each change.
Review and copy
Read the notes, keep the fixes you agree with and copy the clean version.
Grammar Checker vs. Paraphraser
Two tools, two different jobs.
| Grammar Checker | Paraphraser | |
|---|---|---|
| Goal | Correct errors | Reword the whole text |
| Changes correct sentences | No | Yes |
| Explains each change | Yes, in explanation mode | No |
| Best for | Final proofreading | Fresh wording or a different tone |
Who uses it
Students
Proofread essays and reports before submission and learn from the explained corrections.
Professionals
Send emails, proposals and reports without typos or awkward sentences.
Non-native writers
Check articles, prepositions and idioms with a note on why each fix was made.
Content writers
Run a final pass on posts and newsletters while keeping the brand voice intact.
More writing tools
Keep polishing the draft with related ZeroTell tools.
Frequently asked questions
You can run free checks each day, with or without an account, and see a preview of the result. Full results and longer texts come with the Pro plans* (*fair use applies); without a plan, credits you already have also work.
It corrects text in the language you write in and never translates it. For language-specific guidance, see the dedicated checkers for Spanish, German, French, Japanese, Chinese and more.
No. Sentences that are already correct are left as they are. The style option only tells the checker which register to respect when a fix is needed.
Yes. It keeps the spelling variety you use and does not switch colour to color or the other way round unless the text mixes them.
Your text is sent to our AI provider only to produce the correction. See the Privacy Policy for how long results are kept.
It catches most grammar, spelling and punctuation errors, but a final read is still worth it for meaning, facts and tone.
Send it without second-guessing
Paste your draft and get a clean, explained correction in seconds.
Check my grammar