Free Grammar & Spell Checker — Advanced Writing Tool Online
TC
ToolsCoops Editorial TeamUpdated: May 20, 2026 · Writing Tools
Grammar CheckerSpell Checker
Proofreading ToolEnglish Writing
Free Online ToolToolsCoops
Good writing is more than ideas — it is clarity, correctness, and confidence. A single spelling error in a blog post, email, or social media caption can undermine your credibility instantly. The ToolsCoops Grammar & Spell Checker scans your text using a 500+ word dictionary and multiple grammar rule engines to catch errors that even experienced writers miss.
What This Tool Checks
📚
Spelling
500+ misspelled words
📖
Grammar
Articles, homophones
🔄
Passive Voice
Flags weak sentences
💛
Wordiness
Suggests concise words
·
Punctuation
Space & comma issues
📊
Readability
Score your writing
500+ Word Dictionary — How It Works
The built-in dictionary covers the 500 most commonly misspelled English words across all categories — business writing, academic English, everyday communication, and social media. Every word has been manually verified with its correct replacement. The tool checks your text against this dictionary entirely in your browser — no internet required after the page loads, no server communication, no data collection.
Readability Score Explained
The readability score estimates how easy your text is to read based on average sentence length, word count per sentence, and paragraph density. A score of 60-70 is standard readable English. Above 70 = very easy (suitable for general audiences). Below 50 = complex text (academic or technical). The score updates live as you type so you can adjust your writing style in real time.
✅ 100% PrivateEverything runs in your browser using JavaScript. Your text never leaves your device. No API calls, no analytics on your content, no server storage. Completely private.
💡 Pro TipFor best results: paste your full text, check all suggestions, apply corrections in your original document, then paste again for a second pass. Most professional writers do 2-3 passes before publishing.
❓ Frequently Asked Questions
10 Q&A
Is this Grammar Checker completely free?+
Yes, 100% free. No registration, no subscription, no usage limits.
Is my text sent to any server?+
No. All checking happens entirely in your browser. Nothing is sent anywhere.
How many words are in the dictionary?+
500+ commonly misspelled English words with correct replacements, plus grammar rules.
What types of errors does it detect?+
Spelling (500+ words), duplicate words, article errors (a vs an), capitalization, homophones, passive voice, wordy phrases, and punctuation issues.
What is the Readability Score?+
Estimates how easy your text is to read. 60-70 = standard English. Above 70 = very easy. Below 50 = complex/academic text.
Can I copy the corrected text?+
Yes. The Copy Fixed button copies your text to clipboard. Apply corrections manually in your document based on the suggestions.
Does it work on mobile?+
Yes. Fully responsive on Android and iPhone. All features work on mobile browsers.
Can I use this for blog posts?+
Absolutely. Ideal for blog posts, articles, emails, essays, social media captions and any written content.
Does it detect passive voice?+
Yes. The tool flags common passive voice patterns and suggests active voice alternatives for clearer, more direct writing.
Does it replace professional proofreading?+
This tool catches the most common errors instantly. For critical legal or academic documents, professional proofreading is still recommended.
