Free Punctuation Checker
Grammarly’s punctuation suggestions allow you to write your best wherever you love to write. Check punctuation, grammar, and more in our free punctuation checker.
Improve Your Punctuation
You can’t write without punctuation. Or you could, but all you’d end up with is a word salad. Punctuation marks aren’t just stylistic; they help the reader make sense of your sentences. They show when to take a pause between ideas or reveal relationships between the words themselves. English has a lot of punctuation rules—and exceptions. Understanding them helps you avoid mistakes like using "it’s" when you meant "its," or misplacing a period within a parenthesis. Read these helpful resources to understand the conventions for commas, colons, and more, and see your writing improve.
Semicolon
Semicolons feel fancy, but they’re also subtle. Learn how to use them to their full potential with this guide.
Semicolons feel fancy, but they’re also subtle. Learn how to use them to their full potential with this guide.
Apostrophe
Where, oh where does the apostrophe go? Check out all the nuances of this tricky punctuation mark.
Where, oh where does the apostrophe go? Check out all the nuances of this tricky punctuation mark.
More Punctuation Rules
Read all about the most common and rare punctuation marks, from question marks to em dashes and parentheses to interrobangs.
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’s full range of writing feedback is designed to help you make your writing the best it can be. With real-time suggestions on everything from spelling, grammar, and punctuation to tone and clarity, you can be confident that your writing presents your ideas in their best light.
Punctuation and spelling fixes
Be confident that your punctuation and spelling are spot-on every time.
Full-Sentence Rewrites
See clearer and more polished ways to say what you mean.
Tone Detection
Find out how your message is likely to sound to a reader.
Fluency Suggestions
Get writing feedback tailored to your language background.
Works Where You Write
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 algorithms analyze your writing in real time to detect and fix missing and misused punctuation marks.
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 by downloading the Grammarly Keyboard.
How is Grammarly’s punctuation checker different from my built-in word processor’s?
Standard punctuation checkers can detect basic problems like missing periods, but they often fall short when it comes to more complicated punctuation. Grammarly helps with punctuating dates, avoiding comma splices, correctly using semicolons, and more.
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 handy guide.
What are some of the most common punctuation mistakes people make?
Because there are so many different ways to use a comma, and so many rules to remember, comma mistakes are among the most common types of punctuation errors. Read our guide to comma rules to learn the ins and outs of this punctuation mark.
What other writing feedback does Grammarly offer?
Grammarly offers a full range of writing feedback, with real-time suggestions on clarity, vocabulary, tone, and more. Check your English text for grammar, spelling, and punctuation errors with Grammarly’s free grammar checker.
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