Free AI Punctuation Checker
Precise punctuation instantly makes you sound clear and professional. Check your punctuation, grammar, and more in our free punctuation checker.
Make Your Point With Punctuation
Punctuation marks are critical to strong, effective communication. When you want to show the relationships between ideas or indicate a pause for emphasis, punctuation marks are necessary. They can even change your tone! These resources will help you better understand the rules of commas, colons, and more.
More Punctuation Rules
Read all about the most common and rare punctuation marks, from question marks to em dashes and parentheses to interrobangs.
How Grammarly Can Help
Grammarly is the AI writing partner that supports you in any communication task, on any device. When you write more effectively, you work more effectively. Go beyond one-note spell checkers and discover how Grammarly helps at every stage of writing—from initial ideas to final touches.
Ensure your writing is
mistake-free
Be confident that your punctuation, grammar, and spelling are spot-on every time.
Say what you mean
Get quick ways to make your point as easy to understand as possible.
Make the right impression
every time
Gauge the tone of your message before you hit send.
Fluent English,
at your fingertips
Get writing feedback tailored to your language background.
Works Where You Write
Grammarly works across 500,000+ websites and apps, so you can write assignments, emails, and more without copying, pasting, or breaking focus.
Gmail
Microsoft Word
Microsoft Outlook
Google Docs
Chrome
Safari
Firefox
Edge
iOS
Android
Frequently Asked Questions
How does Grammarly’s punctuation checker work?
Grammarly’s punctuation checker uses advanced AI to analyze your writing in real time. It identifies missing, misplaced, or unnecessary punctuation, such as commas, periods, and quotation marks, ensuring your writing is clear and polished.
Grammarly is committed to responsible AI practices, prioritizing your privacy and security. Your text is processed securely and will never be publicly searchable or stored in databases accessible by others.
Grammarly is committed to responsible AI practices, prioritizing your privacy and security. Your text is processed securely and will never be publicly searchable or stored in databases accessible by others.
Where can I use Grammarly’s punctuation checker?
Grammarly's punctuation checker works in your browser and across all of your favorite desktop apps. You can even use it on your phone.
How is Grammarly’s punctuation checker different from my built-in word processors?
Standard punctuation, grammar, or spell checkers can catch mistakes like a missing period or comma, but Grammarly goes beyond only fixing mistakes. It catches inconsistencies in style and logic too, like punctuating dates, avoiding comma splices, and correctly hyphenating adjectives. When you get these things right, your writing is not merely correct, it's clear and coherent.
What are the 14 punctuation marks, and how are they used?
The fourteen punctuation marks most commonly used in English are periods, question marks, exclamation points, commas, colons, semicolons, dashes, hyphens, brackets, braces, parentheses, apostrophes, quotation marks, and ellipses. Read about how they can each be used in this guide.
What are some of the most common punctuation mistakes people make?
Misplaced commas are one of the most frequent punctuation mistakes, even among experienced and professional writers. Read our guide to learn the grammar rules of the versatile comma and how to get it right.
What other writing feedback does Grammarly offer?
Grammarly can help you jump-start ideas or polish any message or document. Grammarly offers generative AI and a full range of writing feedback, with real-time suggestions for clear phrasing, vocabulary, tone, and more.
Does Grammarly offer other free AI writing tools?
Yes, Grammarly offers a suite of free AI-powered writing tools that assist with tasks like generating ideas, improving clarity, and crafting polished drafts. Using advanced AI, these tools analyze your text, suggest improvements, and streamline your writing process for a more efficient and effective experience.
Advanced AI That Transforms Your Writing
Grammarly streamlines every step of the writing process—from brainstorming to final edits—ensuring clear, confident, and efficient communication.
Learn more about AI at Grammarly
Learn more about AI at Grammarly
Move Your Work Forward With
Great Writing
Join over 40 million people and 50,000 organizations who use Grammarly every day to find the right words to reach their goals.