Free Colon Checker

Polish your writing effortlessly with our colon checker tool. Achieve flawless punctuation for clear, readable text.

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What you need to know about colons

What is a colon?

A colon is a punctuation mark that looks like two periods on top of each other (:).

Colons are used to introduce and explain independent clauses, as well as words, phrases, lists, and explanations—akin to saying "that is to say" or "here's what I mean."

Colon checker example
Incorrect colon example

Why use a colon checker?

ProWritingAid's colon checker ensures correct punctuation and enhances readability, so your message can be understood effectively.

Feel more confident in everything you write

Join over 3 million authors, students, and professionals improving their writing.

I am continually impressed with the positive input this program offers me every time I sit down to write. My skills have improved immensely since I bought it, and I heartily recommend it to anyone who wants to have more confidence in their own writing.

I’ve tried every free and paid writing/editing/grammar extension out there, and this by far is the best one my team and I have found. It’s fast, accurate, and really helps improve your writing beyond simple grammar suggestions.

ProWritingAid has been a resource in my writer toolkit for many years. The program helps me to craft and clarify my stories for a better reader experience. Your editor will thank you for making their job easier.

Take your writing to the next level

Our editing tool does more than fix colon errors; it offers a range of other features too.

Example of confused words being corrected on our grammar checker

Correct grammar and spelling mistakes

ProWritingAid ensures your writing is error-free. It detects and corrects grammar and spelling mistakes, helping you write faster and with greater accuracy.

Get style recommendations

Receive style tips with ProWritingAid, including varying sentence lengths, eliminating repeated words, and avoiding inconsistencies.

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Rephrase sentences

Find the best choice of words to use with Rephrase, the sentence rewriter powered by ProWritingAid.

ProWritingAid works wherever you do

Get grammar suggestions across all the apps you use, whether they’re on desktop or online.

Colon Checker FAQs

1. Does ProWritingAid autocorrect?

ProWritingAid offers suggestions and recommendations to help you identify and correct writing errors, such as misused colons. However, the choice to accept or ignore these suggestions is entirely yours.

2. Can I fix colon mistakes in emails and on social media?

Absolutely. In fact, our browser extensions (Chrome, Firefox, Safari, and Edge) work across most websites and online apps, including Gmail, LinkedIn, and Google Docs.

3. How can ProWritingAid help?

ProWritingAid is your all-in-one writing tool to address a variety of writing concerns. It corrects punctuation, spelling, and grammar, and includes advanced AI features that help you rewrite, continue, and analyze your writing.

4. Is ProWritingAid's colon checker free?

You can edit up to 500 words at a time with a free account. If you want to edit larger documents, you’ll need to upgrade. You can find more information on our pricing page.