Free Formal to Informal Converter

Swiftly transform sentences between formal and informal styles with Rephrase, an AI sentence rewriter by ProWritingAid.

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Get unlimited rephrases on a paid plan or 10 a day for free.

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Share every sentence with confidence

Join over 2 million people improving their 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 a Rephrase feature now—I just tried it today, and it helps so much! Like a magic✨ editor!

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.

Transform sentences from formal to informal with the click of a button

Choose how to rewrite

Easily convert sentences from formal to informal, or vice versa. You can also shorten or expand text, add sensory details, and improve fluency, too.

Formal to informal converter product image
Formal to informal converter product image

Craft the perfect message

Effortlessly find the right way to phrase your ideas with Rephrase. Choose from dozens of options to reword any sentence.

Translate to fluent English

Rephrase will translate from your native language to fluent English so you can be confident in everything you write.

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Works wherever you do

Rewrite sentences across all the apps you use, whether they’re on desktop or online.

Informal to formal converter FAQs

What is ProWritingAid?

ProWritingAid is a powerful writing assistant that can help speed up the writing process and overcome writer's block.

It catches and fixes grammatical errors and offers clever suggestions to paraphrase your writing. Find out more about the features here.

Is ProWritingAid free?

In the free plan, you get ten rephrases per day, which you need to convert sentences from formal to informal. If you need more, you'll need to upgrade to a paid plan.

Does ProWritingAid work everywhere online?

ProWritingAid can be used on a variety of websites and online apps by installing the browser extension. You can correct grammar and spelling errors, rephrase sentences, shorten text, and more.

Does ProWritingAid autocorrect?

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