Grammar Checker
Check grammar, spelling, punctuation, and style errors instantly. Powered by LanguageTool — supports 20+ languages including English, Spanish, French, German, and more. Free, no sign-up required.
Grammar Check for Different Writing Types
Essays & Academic Writing
Students can check essays, research papers, and dissertations for grammar errors, run-on sentences, and passive voice before submission. The tool catches subject-verb agreement errors and misplaced modifiers that spell-checkers miss entirely.
Professional Emails
Polish business emails and cover letters before sending. The tool identifies informal language, unclear phrasing, and punctuation errors that can undermine your professional credibility in workplace communication.
Non-Native English Speakers
ESL writers benefit greatly from grammar checking — the tool explains each error and suggests the correct phrasing, making it an active learning tool that helps improve English proficiency over time.
Blog Posts & Content Writing
Content writers can check articles for clarity, style consistency, and grammar before publishing. Blue highlights flag style issues like unnecessarily complex sentences that reduce readability and SEO performance.
About Grammar Checker
What Is a Grammar Checker?
A grammar checker scans your writing for grammatical mistakes, spelling errors, punctuation problems, and awkward phrasing, then suggests corrections in real time. Our Grammar Checker goes beyond a simple spellcheck — it looks at sentence structure, subject-verb agreement, tense consistency, and word choice so the final text reads the way a careful human editor would leave it.
How Our Grammar Checker Works
The tool parses your text sentence by sentence, comparing structure and word usage against language rules and common error patterns. When it flags an issue, it explains what's wrong and offers a specific fix rather than just underlining the word — so you learn the correction instead of guessing at it.
How to Use the Grammar Checker
- Paste or type your text into the input box (or upload a document)
- Click Check Grammar
- Review each flagged issue — click a suggestion to accept it, or dismiss it if it doesn't apply
- Copy or download the corrected text once you're done
Key Features
- Contextual corrections — catches errors that depend on surrounding words, not just isolated typos
- Punctuation and spacing checks — missing commas, double spaces, and misplaced apostrophes
- Tense and agreement detection — flags mismatched subject-verb pairs and inconsistent tense shifts
- One-click fixes — apply a suggested correction without retyping
- No word limit for casual checks — paste a full essay, email, or article
Who Uses This Tool
Students use it to proofread essays and assignments before submission. Content writers and bloggers run drafts through it to catch errors before publishing. Non-native English speakers use it to double-check phrasing and grammar rules they're still learning. Professionals use it for emails, reports, and proposals where a typo can look unprofessional.
Frequently Asked Questions
Is this grammar checker really free?
Yes, checking your text for grammar and spelling errors is completely free with no signup required.
Does it catch every type of error?
It catches the vast majority of common grammar, spelling, and punctuation mistakes, but no automated tool replaces a final human read-through for tone and nuance.
Can I use it for academic writing?
Yes — it works well for essays, research papers, and assignments, though you should always follow your institution's specific citation and formatting rules separately.
Does it store or share my text?
Your text is processed to generate the grammar check and is not published or shared publicly.
Free Grammar Checker vs Grammarly
| Feature | SEO Stack Tools | Grammarly Free | Grammarly Premium |
|---|---|---|---|
| Price | Free | Free (limited) | $12–$30/month |
| Grammar & spelling | Yes (LanguageTool) | Yes | Yes (advanced) |
| Style suggestions | Yes | Limited | Full |
| Languages | 20+ | English only | English only |
| Plagiarism check | Separate tool | No | Yes |
| Account required | No | Yes | Yes |
| File upload | Yes (.doc/.docx/.txt) | Browser extension | Browser extension |