Free online grammar checker and spell checker. Check your text for grammar errors, spelling mistakes, punctuation issues, passive voice, wordy phrases, and confused words. Get readability scores (Flesch-Kincaid), writing statistics, and style improvement suggestions. 100% browser-based with zero uploads.
100% browser-based — your data never leaves your device
A fresh set of eyes catches what your own reading misses, and this checker provides that review in real time. It highlights spelling, grammar, punctuation, and style issues as you type, then scores the overall quality of your writing.
Proofreading is part of nearly every writing workflow, and this tool is built for the common cases. Use it to proofread blog posts and articles before publishing to catch typos and grammar mistakes, improve writing clarity by identifying passive voice, wordy phrases, and run-on sentences, check academic papers and reports for punctuation and subject-verb agreement errors, and assess readability for different audience levels. Writers, students, and professionals all benefit from the same underlying engine.
The checks run deep rather than shallow. Spell check catches misspelled words through a comprehensive dictionary with Levenshtein-distance suggestions, the grammar engine handles subject-verb agreement, sentence fragments, run-on sentences, and comma splices, and the punctuation check covers commas, apostrophes, quotes, hyphens, and semicolons. Style suggestions flag passive voice and wordy phrases, while Flesch-Kincaid, Gunning Fog, and Coleman-Liau scores measure complexity for your audience.
The text you run through a grammar checker is often exactly the material you are not ready to share, including unpublished articles, internal reports, and documents containing personal or business-sensitive information. Many online grammar checkers upload your full text to their servers, effectively collecting every draft you proofread.
This checker runs entirely in your browser, so your text never leaves your device. You can proofread confidential documents freely without trading your writing for a grammar check.
Enter your text in the input area. The checker highlights errors in real-time as you type — red for spelling, yellow for grammar, blue for style suggestions.
Each issue is color-coded by type. Click any highlight to see the explanation and suggested fix.
Accept individual suggestions by clicking them, or use the Fix All button to apply all corrections at once.
Review your grammar score, readability grade, and writing statistics for a complete quality assessment.
Practical examples to help you get the most out of Grammar Checker:
Input: 'The team are working on there project. Its important to finish it on time.' Detected: âÂÅ’ 'The team are working' — subject-verb agreement (team is singular) → 'The team is working' âÂÅ’ 'there project' — wrong their/there/they're → 'their project' âÂÅ’ 'Its important' — missing apostrophe → 'It's important'
Input: 'It was decided by the committee that the meeting should be rescheduled to a later date in the near future.' Style issues: âÂÅ’ 'It was decided by the committee' — passive voice → 'The committee decided' âÂÅ’ 'in the near future' — wordy phrase → 'soon' Revised: 'The committee decided to reschedule the meeting soon.'
Grammar checkers catch many errors but can miss context-dependent issues like wrong word choice (e.g., 'affect' vs 'effect'), unclear antecedents, and logical flow problems. Always read your final draft aloud after running the checker.
Style suggestions flagged as 'blue' issues may not be technically wrong, but fixing them often improves clarity and readability. Passive voice reduction and wordy phrase elimination make writing more direct and engaging.
Yes. All features including spell check, grammar analysis, style suggestions, and readability scoring are completely free with no usage limits, sign-up, or premium tiers.
No. Everything runs entirely in your browser using JavaScript. Your text never leaves your device. This is the core privacy advantage over online grammar checkers that upload your content to their servers.
The rule-based engine catches common grammar errors, punctuation mistakes, and style issues with high accuracy for standard written English. It works best on prose and academic writing. Highly creative or technical writing may produce more false positives.
This tool focuses on grammar, spelling, and style. For plagiarism and AI content detection, use our dedicated Plagiarism Checker which provides originality scoring and AI likelihood analysis.
The tool accepts up to 100,000 characters per check. For longer documents, process in sections.
Detects misspelled words using a comprehensive English dictionary with smart suggestions via Levenshtein distance.
Rule-based engine catches subject-verb agreement, sentence fragments, run-on sentences, comma splices, and more.
Flags missing or incorrect punctuation including commas, apostrophes, quotes, hyphens, and semicolons.
Detects passive voice, wordy phrases, clichés, and suggests more concise alternatives.
Flesch-Kincaid, Gunning Fog, and Coleman-Liau indices help you gauge text complexity for your target audience.
Total words, sentences, paragraphs, average sentence length, complex words, and estimated reading time.
Grammar Checker is useful in a variety of scenarios across different workflows:
Proofread blog posts and articles before publishing to catch typos and grammar mistakes
Improve writing clarity by identifying passive voice, wordy phrases, and run-on sentences
Check academic papers and reports for punctuation and subject-verb agreement errors
Assess readability of content for different audience levels using multiple scoring indices
Grammar checkers are aids, not authorities. Some flagged issues may be intentional stylistic choices. Review each suggestion in context before applying it.
Flesch-Kincaid Grade Level 8-10 works well for general audiences. Scores below 6 are ideal for children's content. Scores above 14 suit academic or technical writing.
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