Free Online Punctuation Checker!
Grammarlookup.com uses artificial intelligence to check grammar and punctuation mistakes in your writing, eliminate spelling errors and highlight 1000s of style issues to make your writing exceptional among other writers. Ease of Use and faster checking make it the best proofreader for everyone. It’s Free and will Always be, Try it.


Save Your Proofreading Time with the Best Punctuation Checker Tool
Are you a student with lengthy assignments to submit today and have no time to proofread what you have written? Fret not! We all know typos and grammatical mistakes are common. However, they can change the whole meaning of a sentence.
The good news is there are grammar and punctuation corrector online tools that can save your time and effort while improving the readability of your academic paper.
Here’s how to use this tool:
- Type or Copy (CTRL+C) & Paste (CTRL+V) the text in the Editor.
- Click the Lookup button.
- Spelling, Grammar, and Punctuation mistakes will be underlined.
- Hover your mouse cursor on each word for correct Options.
- Use The Deep Lookup button for a thorough check through our partner grammar check.
GLU’s AI Tool: Check For Punctuation Errors
GLU’s AI Tool can check for below punctuation marks misplacements in your writing, Simply Copy & Paste your text and type in the editor and click the Lookup button.
- Period (.)
- Question Mark (?)
- EM-Dash (-)
- Slash (/)
- Ellipses (….),
- The comma (,),
- Apostrophe (‘)
- Semicolon (;)
- The exclamation point (!)
- Angle brackets (<>)
- Parenthesis ()
- Square brackets ([ ])
- The hyphen (-)
- Colon (:)
- Braces ({})
- Quotation marks (“” )
No matter how fluent you are at English, blunders, and typos are mostly inevitable which trouble the readers. Even those whose mother tongue is English make silly blunders. Therefore, you don’t have to get embarrassed, however, proofreading can always improve your document in readability and earn you some extra points.
A professor checking your paper or the publisher posting your article on a site can’t always ignore the mistakes made assuming they are just human errors. Therefore, it is recommended that you use a credible Grammar checker like GrammarLookup for the best correction possible.
Why Use GrammarLookup’s Punctuation Checker?
This amazing tool does not scrutinize the paper for punctuation mistakes, but it also suggests correcting the grammatically incorrect sentences. Now, what can be better! The tool saves your time and makes the article easier to read and understand for the readers. Thus, you get better feedback and engagement from the readers in return.
GrammarLookup is best for checking all sorts of content including academic assignments, business proposals and even articles full of technical jargons. So, you can imagine the strength of the software and its ability to check and correct even the toughest terms.’s
Here is What This Tool Does:
If you want to improve your grammar and punctuation checking experience, consider the following features in a tool and avoid any hassle:
A Perfect Fix for All Errors
The main aim of such a tool is to make your content free from any blunders, either big or small. Keep in mind that the checks might differ regarding the dialect you use.
The best tool would be constructed in a way it copes with every English dialect and other renowned terms and languages at the same time.
GrammarLookUp has incorporated this feature to provide you with the best results.
Help For a Better Academic Performance
The tool might not help you in all the aspects as an online academic writer would, however, it is still a great help for students and even professional writers.
An online free grammar check will not only help in making your academic performance better, but consistent use of it can also improve your writing style with time.
Using such a service ritually will also help you learn from your mistakes and avoid them
Simplicity is the Key
The best software is the one that anybody and everybody can use, no matter how little they know about information technology.
We have constructed this tool keeping this in mind and therefore we assure to give you hassle-free service.
We have done the part by making a user-friendly tool. Now, it depends on the user too to understands the tool
Google Punctuation Checker
Wouldn’t it be great if there is a Google punctuation checker? We hope so one day Google will make an AI proofreader, for now, this is the best you have got.
We would suggest you check your academic papers regularly for getting rid of the unavoidable human errors immediately.
Keep in mind that after all a tool is just another robot that cannot always help you get a perfect piece of paper. There will be times when it requires you to decide, for example, selecting a word that is the most suitable in a sentence.
As a cherry on top, the best feature of our tool is that it covers several languages, enabling you to make your piece of work a unique and perfect one. With the regular use of GrammarLookup, you turn not only your piece of work into an error-free one but you also gain a lot of knowledge and a better grip on the language. So what are you waiting for?
Try Now!
FAQS: Frequently Asked Questions
Can This Tool be used as Comma Checker?
Yes, Grammarlookup can check for comma errors, It can also detect comma splices placements.
Quote Checker: Can this do a Quote Check?
Yes, GLU can detect punctuation marks: “quotes” (single and double quotes) and can be used as such.
Is this sentence’s punctuation correct?
Check if a sentence is punctuated correctly, copy & paste your text in the editor and click checkup.
Can I check apostrophe errors with GLU?
Yes, GLU is an apostrophe checker and can check for apostrophe issues.
How do I check for the punctuation mark “colon”?
To check for colon issues, use the GLU colon checker editor at the top of this page.
Can I download the GLU Punctuation checker?
No, GLU can only be used directly in the browser, no Google chrome extension or software installation is required.
Is GLU’s grammar and punctuation checker free?
Yes, Grammarlookup is a free online grammar and punctuation checker.