The best writing assistant for Chrome
Looking for a way to catch and correct mistakes? To write better and faster on Chrome? Frustrated with other correction extensions? Forget everything you know about writing tools and get ready to give your texts a glow up with MerciApp’s Google Chrome extension.
Add to Firefox 
Add to Chrome 
Add to Edge Spelling & grammar checking
MerciApp delivers the best spelling and grammar checker on the market. No exaggeration!
Style enhancement
Turn to clunky, long-winded sentences into clear, flowing prose with our style enhancement features
Smart rewriting
Thanks to our AI-powered updates, MerciApp now provides contextual rewrites. A must-have for all writers.
Deep dive
Why is MerciApp the best spelling and grammar correction on Chrome?
Thanks to its powerful correction engine and deep linguistic expertise, MerciApp brings a new level of writing excellence to Chrome. With the MerciApp extension, experience writing where every word counts and every sentence shines. Simple, precise, flawless.
A writing powerhouse
30 years of linguistic expertise now in your browser. Over 200,000 writing experts are already on board. How about you?
Think you’re safe from sneaky spelling, grammar and syntax mistakes? Think again. The writing revolution is here.
Effortlessly simple
In an instant, the MerciApp extension transforms your Chrome browser into your very own spelling and grammar checker. No hassle, no bulky set-up. Just two clicks.
Ready to impress with every message? The future of writing starts now.
Shine across the web
With MerciApp enabled, whether you are on Gmail, Google Docs, LinkedIn, or Facebook, every spelling, grammar, or style mistake becomes a thing of the past.
Flawless writing everywhere all the time. All from one browser extension
Try MerciApp for free
Experience the magic of MerciApp for free. Want more? Unlock premium features. Just exploring? Keep using our online tool for free.
Ready to take your writing up a notch?
Set up MerciApp for Chrome in 3 easy steps
Download the browser extension
Fast, easy and free. No credit card required.
Create your MerciApp account
Almost done! Set up your account in a couple of clicks to unlock the spelling and grammar correction.
Correct your writing online
MerciApp scans your text to highlight mistakes and make suggestions. You pick what works for you! Just choose the corrections you want to apply to improve your text.
The spelling and grammar GOAT for Chrome
Need a powerful and reliable spelling and grammar checker for Google Chrome? MerciApp takes your writing to the next level with its precise, professional-grade correction. Forget other extensions, MerciApp is the tool that professional teams rely on.
In just a couple of clicks, turn your Chrome browser (or Firefox and Microsoft Edge) into a meticulous wriitng assistant, catching mistakes and typos with unmatched accuracy.
Whether you’re on Gmail LinkedIn or Facebook, it’s time for your content to shine. Who wouldn’t want flawless writing everywhere? Try MerciApp for free. So much more than just a simple web browser or tool, this is a whole new era of correction. Plus it’s fast and easy to install.
Your data stays safe, secure and protected on our servers. Still not convinced? Try our spelling and grammar correction tool for free for 30 days. Your mistake-free adventure starts here. Discover the magic of MerciApp!
No Chrome? No problem! We also have browser extensions for Firefox and Edge.
We read (and love) feedback!
What our users have to say
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The best spell checker out there! It never misses mistakes and my writing is improving little by litte.
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Smiley logo and feel-good vibes? Check! But what really makes MerciApp shines at is saving time, avoiding mistakes and suggesting alternatives- it’s so much more than just another spell checker. The future of writing for 8€ a month? Total no-brainer.
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Awesome app for people who aren’t great at spelling. It’s intuitive and easy to use. Thanks MerciApp for this game-changing work tool!
We launched MerciApp in 2020 with Diagonal, a French leader in proofreading.
Our goal is simple: help 300 million French speakers worldwide communicate better.
Arthur Ollier
Co-Founder & CEO, MerciApp