Grammar Checker
Fix Grammar Mistakes Instantly
Check grammar, spelling and punctuation — paste any text and get it back corrected, with your original beside it for comparison. Built for non-native English and Russian, with no signup to start.
How do I check grammar in English text online?
Paste your draft into the checker above and run it — grammar, syntax, punctuation, spelling and common word-choice mistakes are corrected together in one pass, and the fixed text comes back in a panel beside your original so you can compare them side by side. There is no language picker; the checker detects English (or Russian, or another major language) on its own. It corrects form and clarity, not your meaning — nothing to sign up for, and no card needed to start.
The web tool takes up to 5,000 characters per run from a free bucket, and the page shows what is left of it. When you need longer documents, history and the shared VUST balance, @vustGrammarBot is the same checker inside Telegram.
- Subject-verb agreement and verb tense
- Articles — "a", "an", "the"
- Punctuation, including missing or misplaced commas
- Spelling and common word-choice mix-ups
See the difference
Three real texts, before and after the check — with a short note under each naming what changed.
Who uses this grammar checker and what they get.
- Student
- Proofread an essay or lab report paragraph
- Get the paragraph back with subject-verb agreement, tense, and punctuation corrected, your original beside it so you can see what changed.
- Professional
- Clean up a client email or Slack update
- Keep your meaning and tone; the grammar checker only fixes mistakes in spelling, syntax, and word choice before you hit send.
- ESL writer
- Check a LinkedIn post or cover letter draft
- One clean corrected version instead of a wall of suggestions — your draft stays in the panel beside it, so a quick comparison is all it takes.
How the grammar checker works on the web.
- 01
Paste
Paste any English text into the box at the top — emails, essays, job applications, or chat messages. The free web grammar checker accepts up to 5,000 characters per run.
- 02
Check
Click Check. Grammar, spelling, punctuation, and syntax are corrected in a single pass, and the clean version appears in the panel beside your original.
- 03
Copy
Compare the two panels, copy the clean text, or open @vustGrammarBot in Telegram for longer documents, history, and the same Balance as other VUST bots.
Same grammar checker in Telegram — longer texts and history.
Forward a message, paste a long doc, or run checks from mobile. Uses the same VUST Balance; no second account.
What to expect from this tool.
What it checks
One pass covers grammar, syntax, punctuation, spelling, and common word-choice mistakes. Your original and the corrected version sit side by side — not a separate report you have to map back manually.
Privacy
Your text is sent only to run the check and is not used to train models. Do not paste passwords, API keys, or other secrets into any online grammar tool.
Free quota
The web grammar checker gives you a bucket of 10 free checks per browser, refilling by one every 4 hours. Need more volume or saved runs? Use GrammarBot in Telegram, where the exact price is shown on a confirm screen before anything is charged.
Frequently asked questions
What is this grammar checker for?
It is a free, no-signup grammar checker for English and other languages — emails, essays, cover letters, messages, and posts. Paste text, run a check, and the corrected version appears next to your original, so you can compare the two and copy what you need. No account or card needed.
What types of mistakes does it catch?
Grammar, syntax, punctuation, spelling, and common word-choice issues in one pass. Your original text stays on screen next to the result, so you can compare them sentence by sentence.
Does it change my meaning?
No. It corrects form and clarity mistakes. Your facts, names, and intent stay the same unless a word-choice fix is required for correct English.
How is the web tool different from GrammarBot in Telegram?
The web checker is built for quick paste-and-fix runs (up to 5,000 characters), with your original and the corrected text side by side. The before → after change list is here too now, under the result. GrammarBot in Telegram adds files — DOCX and PDF, which you cannot paste into a browser — plus history and the shared VUST Balance wallet — same product family, different surface.
Is this grammar checker free, and is there a limit?
Yes — a free bucket of 10 grammar checks per browser, refilling by 1 every 4 hours. When you need more volume, open @vustGrammarBot in Telegram.
Which languages are supported?
It auto-detects the language — there is no language setting to pick — and checks English, Russian, and other major languages. The experience stays the same across supported languages, which makes it especially useful for non-native English writers and Russian text.
Other VUST writing tools (one Balance).
Ready when you are
Run a grammar check before you send the next email or essay.
Use the checker at the top of this page — free, no signup. For longer texts, continue in Telegram on the same shared VUST Balance.