Try our online Spell Checker
Over 350,000 professionals already trust MerciApp’s Spell Check to elevate their writing and ensure flawless accuracy, in real time.
Add to Firefox
Add to Chrome
Add to EdgeHow it works ?
- Step 1 – Type your text and watch MerciApp highlight any potential mistakes
- Step 2 – Click on the highlighted words to see suggestions
- Step 3 – Click on a suggestion to apply it
Comment reformuler votre texte ?
- Etape 1 – Sélectionnez du texte
- Etape 2 – Cliquer sur le widget qui apparaît
- Step 3 – Choose how to rephrase
MerciApp helps the world’s top teams
Integration
MerciApp works wherever you do
MerciApp works with all your favorite online tools. Get it as a browser extensions for Chrome, Firefox and Edge or use it natively on Windows.
Browsers & OS
Chrome
firefox
edge
windows
Email & Chat Apps
GMAIL
OUTLOOK
SLACK
MESSENGER
Software Suites & CRM
OFFICE suite
GOOGLE SUITE
HUBSPOT
SALESFORCE
And thousands of other platforms!
33 mistakes a day!
That’s he average number of mistakes professionals let slip into their written work
Next gen correction and rephrasing
Writing made easy
Productivity
Boost accuracy and efficiency
98%
of spelling and grammar
mistakes corrected
33 mistakes
avoided per day
thanks to our checker
22 mins
saved per day on proof-reading
and manual fixes
Transform
AI power for your writing
Finally! AI writing assistants that integrate seamlessly into your workflow. Save time on writing without compromising on quality and deliver clear, impactful content every time.
Flawless writing in real time
Go beyond spell checking with MerciApp. It’s a full-featured writing assistant that polishes your style, sharpens your message, and makes every word matter. Write with confidence and impact everywhere you type.
Gmail, LinkedIn, Notion, WhatsApp, Slack, Facebook Messenger, and more. Get real-time spelling and grammar suggestions wherever you write
Rewrite your texts with precision
Optimize and personalize every message with the MerciApp contextual rewrites. Express your ideas clearly and concisely while cutting out repetition and jargon.
Boost the impact of your writing with AI-powered suggestions that adapt to your audience. No matter who you’re writing for, MerciApp helps you hit the right tone every time.
Features
Your AI-powered writing assistant
01
Premium correction
02
Writing assistance
03
Multilingual
04
Learning & tracking
As seen in
Pricing plans
Pricing that fits your needs
Free
Perfect for occasional writers. Access all MerciApp’s Correct features for up to 600 words per day.
Correct
The smartest pro-grade spelling and grammar checker on the market.
Recommanded
Assist
Next-gen writing assistance.
Entreprise
The ultimate toolkit for high-performing teams
Ready to transform your writing?
Join the thousands of users who’ve improved their writing with MerciApp. Download our free extension and start correcting your texts today.
Unmatched correction power
Built with linguists and AI experts, our analysis engines are trusted by over 200,000 professionals.
30 years of research
Our AI-powered correction engines are built by a dedicated R&D team in linguistics and algorithms. They’re designed for perfection and keep getting smarter every day.
Embedded tech
The MerciApp writing assistant is designed to be discreet and easy to use. No more rooting around for your spell checker, MerciApp is right there when and where you need it.
Constant evolution
Our databases are constantly being updated so that MerciApp stays ahead of language changes and keeps your writing sharp.
MerciApp saves me an hour of proofreading a day and I feel confident that my texts are flawless
Clément Moreno
CEO
For businesses
Over 4,000 businesses of all shapes and sizes use MerciApp Spell Checker. Get in touch with our team of experts to see how we can help you and your team.
FAQ
It’s simple! Click here or download the extension from the Chrome Store, Firefox Add-ons, or Edge Add-ons. Follow the instructions and say goodbye to spelling, grammar, and punctuation errors!
Yes! A free version allows basic checks up to 600 words/day. The web version offers unlimited access to key spelling and punctuation corrections.
MerciApp’s advanced tech makes it more than just a spell checker. It doesn’t just correct your spelling, it also takes care of grammar, formatting and style. Context aware rewriting helps you tighten your writing to make it clear and impactful.
Thanks to over 30 years of linguistic research and AI-powered engines, MerciApp spelling and grammar checker performs a deep analysis on texts for precise error detection and correction.
As well as spelling errors, MerciApp spots and corrects punctuation and formatting mistakes for a perfectly structured text. Missing capital letters or spaces? MerciApp will let you know in real time.
MerciApp offers spelling and grammar checks, as well as AI-powered rewriting in:
- English
- French
- Italian
- Spanish
- Portuguese
- German
MerciApp is available as a browser extension for Chrome, Firefox and Edge and works across Gmail, Slack, LinkedIn, WhatsApp, Notion, and more.
Our spelling and grammar check is also available on Windows and Microsoft Office (Word and Outlook).
MerciApp respects your privacy with a strict no-storage policy. All text is securely transmitted using advanced encryption.
Absolutely. MerciApp is designed to deliver high-precision spelling and grammar correction, meeting the standards of professional or academic writing and ensuring error-free, polished texts.
No worries! You can either ignore it or add it to your personal dictionary by clicking ’Add to dictionary’ on the flagged word.