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Every published piece of content — a blog post, a product description, a meta description, an outreach email — reflects on the writer behind it. Grammar errors do not just undermine credibility with readers. They send quality signals to search engines too: Google's content quality assessments factor in readability, and pages with poor writing quality consistently underperform against well-written equivalents on the same topic. The Grammar Checker scans any text for grammar mistakes, spelling errors, punctuation problems, and style issues — flagging each one with an explanation and a suggested fix. Paste text directly or upload a document. No account, no word limit, no cost.
Paste or upload your text and click Check Text. The tool highlights every detected issue directly in your text — each error type in a different colour — and lists each problem below with a plain-English explanation and the correct replacement.
Yellow = grammar errors · Red = spelling mistakes · Purple = style suggestions. Click any highlighted error to see the explanation and apply the fix.
Subject-verb agreement, incorrect verb tenses, wrong pronoun case, sentence fragments, run-on sentences, and misplaced modifiers. These are the errors that change the meaning of your writing or make it structurally incorrect.
Misspelled words, typos, and commonly confused homophones (their/there/they're, its/it's, affect/effect). The checker catches errors that spell-check in word processors often misses because the misspelled word is itself a real word.
Missing commas, incorrect apostrophes, misused semicolons, wrong quotation mark placement, and missing full stops. Punctuation errors are among the most common issues in blog content and often go unnoticed until a reader stumbles on them.
Passive voice that could be active, wordy phrases that could be condensed, overused words, and repetitive sentence structure. Style suggestions improve readability without changing the meaning — the difference between writing that is technically correct and writing that is genuinely clear.
These are the grammar and spelling errors that appear most frequently in blog posts, product descriptions, and SEO content — and that the checker flags automatically. Recognising these patterns means you make them less often over time.
Google's Helpful Content system evaluates whether pages demonstrate expertise, care, and genuine value. Poorly written content — regardless of keyword targeting — consistently underperforms against well-written equivalents. Grammar errors contribute to several measurable quality signals:
Run your content through the grammar checker before publishing — the time cost is minimal, and the quality signal improvement is real.
Check every article before publishing. Grammar errors in blog content reduce credibility, increase bounce rate, and undermine the quality signals that help pages rank and earn backlinks.
English grammar has rules that trip up even advanced speakers — especially subject-verb agreement, article usage (a/an/the), and tense consistency. The tool catches patterns that may not feel "wrong" but are technically incorrect.
Check essays, assignments, and thesis chapters before submission. Grammar and punctuation errors in academic writing affect grading — catching them before submission costs nothing.
Meta descriptions, title tags, on-page copy, outreach emails — all of these represent your brand or your client's brand. A quick grammar check before publishing or sending takes seconds and prevents embarrassing errors in high-visibility content.
Paste text directly into the editor, or upload a .doc, .docx, or .txt file. No length limit — check a full article or document at once.
The tool scans your text and highlights all detected issues in colour — yellow for grammar, red for spelling, purple for style suggestions.
Click any highlighted error to see the explanation and suggested correction. Apply the fix or dismiss it — every decision is yours to make.
A spell checker only identifies words that are not in its dictionary — it cannot tell whether a correctly spelled word is being used incorrectly in context. A grammar checker goes further by analysing sentence structure and word relationships:
This tool runs both checks simultaneously — it identifies misspellings AND contextual grammar errors that a simple spell checker would miss.
Not directly — Google has confirmed there is no grammar score that feeds directly into rankings. However, grammar quality affects multiple measurable signals that DO affect rankings:
The indirect path from grammar quality to rankings is real and measurable. Publishing consistently error-free content is part of the foundation of a site Google treats as authoritative.
No — there is no word limit on this tool. You can paste or upload an entire article, blog post, or document at once. This is a key difference from many grammar checker tools that cap free users at 500 or 1,000 words and require an account for longer checks.
Yes — completely free, no account, no sign-up, no word limit, no subscription. Check as many texts and documents as you need.