This Chrome extension will help you craft flawless emails, reports, and tweets

Get five years of WhiteSmoke for $39.99.

Producing perfect writing isn’t easy for anyone—even the pros. While typos and grammar mistakes are fine when you’re messaging friends, they can be very costly in cover letters and important work emails. WhiteSmoke is a Chrome extension that checks your writing for errors, meaning you won’t make embarrassing blunders. You can currently get a five-year subscription for only $39.99 at the PopSci Shop.

Even the greatest authors of all time produced first drafts that were riddled with errors—so the rest of us are bound to make mistakes. Editing your own work can be tricky, but WhiteSmoke offers a smart solution.

This smart extension acts like a personal proofreader. Intelligent algorithms analyze the text to find misspelt words, bad grammar, poor punctuation, and even style errors. It works wherever you write online, including social media and your email inbox.

WhiteSmoke can handle 50 different languages, and the built-in plagiarism checker compares your work with a vast database of existing documents. This all-in-one proofreading service has great reviews, and you can use it on any device that runs the Chrome browser.

Order now for $39.99 to get a five-year WhiteSmoke subscription, worth $499.80.

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Prices subject to change