> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.chrisp.chat/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How do I add a spell-checker for Crisp messages?

****When you communicate with your customers, you may want to be sure your messages are corrected before sending them.****

A spell-checker will prevent you to send non-sense sentences, or simply spelling mistakes, grammar inaccuracies, etc.

# Grammarly

[Grammarly](https://www.grammarly.com/), is one of the most famous spell-checker on the market for ****English**** language. If you want to add the add-on to Crisp you need to:

1. Go to Grammarly and click on the button to be redirected to the right marketplace (in this example Google Chrome Web Store)

![](https://storage.crisp.chat/users/helpdesk/website/-/b/7/5/d/b75daa77af129000/75f626bf-e687-4a8b-a6de-b5a908_shcl3v.png)

2. Add the extension

![](https://storage.crisp.chat/users/helpdesk/website/-/e/8/6/e/e86ea747f6119000/a47436a5-7fa4-4c7c-84ed-aebf8e_ore5aa.png)

3. Create an account on Grammarly

![](https://storage.crisp.chat/users/helpdesk/website/-/d/1/c/e/d1ce60239e429000/cfa83e08-ec95-4ef9-9c10-2c3485_1bi2vm1.png)

4. Grammarly is now live on the Crisp web app!

![](https://storage.crisp.chat/users/helpdesk/website/-/e/4/c/c/e4ccb55f40f5d000/2ace7c26-1c12-49ea-96e5-b5ef46_1y9a0im.png)

# MerciApp

[MerciApp](https://www.merci-app.com/) is a powerful spell-checker for ****French**** language. Here is how to enable it on your browser (example with Chrome Browser)

1. Create an account on MerciApp

![](https://storage.crisp.chat/users/helpdesk/website/-/7/8/d/8/78d82419b48f8000/9e48a4d6-73b3-4630-bcf5-514e8e_1i8pe8v.png)

2. Choose the extension you need

![](https://storage.crisp.chat/users/helpdesk/website/-/f/6/7/f/f67f42b83160a0/71c81304-3468-4b1b-a260-d1b6d6_1ot4pdy.png)

3. Add the extension to your browser

![](https://storage.crisp.chat/users/helpdesk/website/-/d/a/3/5/da3525b4f147c000/eb0ade63-b29a-4b61-b9c2-754fd1_u8ezgv.png)

4. MerciApp is now installed on the Crisp web app!

![](https://storage.crisp.chat/users/helpdesk/website/87ae2703583ac800/cleanshot-2025-02-26-at-123007_1z0z8y5.png)

We hope this will help you communicate with your customers using Crisp. Let us know if you have a powerful spell checker for your own language, we will list it there!