AI Grammar & Spell Checker
Catch grammar mistakes, spelling errors, and punctuation issues instantly. Our AI reads sentence structure and meaning - every correction makes sense.
Free AI Grammar Checker & Online
Proofreading Tool
Write with confidence every time. iGrammar is your free AI grammar checker, spell checker, sentence rewriter, and proofreading tool - built for students, writers, and professionals. Fix emails, essays, and reports instantly. No signup. No cost.
Free to useNo signup requiredAI-poweredStudents & professionals
1M+
Grammar corrections made
98%
Accuracy rate
500K+
Writers & students
4.9
Average user rating
How It Works
Fix Grammar in 5 Simple Steps
iGrammar makes grammar correction effortless - no learning curve, no friction. Paste your text and get AI-powered suggestions in seconds.
1
Paste Your Text
Type or paste any text into the iGrammar AI editor.
2
Click Analyze
Hit "Check & Fix Grammar" to start your AI scan.
3
Review Suggestions
See grammar, spelling, and clarity fixes highlighted instantly.
4
Apply Corrections
Click any underline to accept or dismiss the fix.
5
Copy & Use
Export polished, error-free writing instantly.
Features
Everything You Need to Write Better
From AI grammar checking to sentence rewriting - iGrammar is your complete writing improvement and proofreading toolkit, free on web and iOS.
Sentence Rewriter
Rewrite unclear sentences with one click. iGrammar improves flow, removes wordiness, and reshapes writing so it reads naturally.
AI Proofreading Tool
Go beyond spell check. iGrammar reviews grammar, tone, and clarity - like having a professional editor in your browser, 24/7.
Tone Improvement
Switch between formal, friendly, persuasive, and academic tones to match your audience perfectly.
Clarity Enhancement
Eliminate passive voice and wordiness. Get a readability score and targeted suggestions to sharpen every paragraph.
AI Writing Assistant
From expanding ideas to summarising paragraphs - iGrammar helps you write faster, cleaner, and more confidently.
Use Cases
Write Better in Any Context
iGrammar works wherever you write — from school essays to business emails to social media posts.
Emails
Write professional, error-free emails every time.
Essays & Assignments
Improve structure, grammar, and academic writing quality.
Blog Posts
Polish content for SEO, readability, and flow.
LinkedIn & Resumes
Make your profile and resume writing stand out.
Reports
Proofread business and academic reports with AI accuracy.
Product Copy
Write compelling, error-free descriptions that convert.
Social Media
Fix grammar in captions, threads, and posts instantly.
Academic Writing
AI proofreading for theses, papers, and submissions.
Everyday Writing
A writing tool for any message, note, or document.
Before & After
See iGrammar Fix Your Writing
Real grammar corrections and clarity improvements - instantly.
Before Grammar Check
i cant make it tommorow, me and sara was suppose to come but something came up. sorry!!
After AI Grammar Correction
I can't make it tomorrow. Sara and I were supposed to come, but something came up. Sorry!
Before Grammar Check
hi, just wanted to let you know that the report is almost done, i will send it by end of day today hopefully.
After AI Grammar Correction
Hi, the report is almost done - I'll send it by end of day today.
Trusted by Writers
What Our Users Say
Students, professionals, and writers use iGrammar to improve their writing every day.
★★★★★
"iGrammar is the best free grammar checker I've used. It caught errors my other tools missed, and the sentence rewriter genuinely improved my essays."
Sarah K.University student
★★★★★
"As a non-native English speaker, iGrammar's AI proofreading tool is invaluable. It rewrites sentences to sound natural and professional — not just grammatically correct."
Marco L.Business analyst
★★★★★
"I use iGrammar to proofread every blog post before publishing. The clarity suggestions are fantastic — best online grammar checker for content writers."
Priya M.Content writer
FAQ
Frequently Asked Questions
Common questions about iGrammar's free AI grammar checker and proofreading tool.
Yes. The grammar checker at check.igrammar.app is free to use with no sign-up required. You can paste any text and get instant corrections for grammar, spelling, punctuation, and sentence structure. iGrammar also offers a Chrome extension and iOS app for free, with optional premium features for advanced writing tools like tone adjustment and plagiarism checking.