> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://staging.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/-/e/3/1/9/e3194069f7cf6800/ce45e40c-89fe-46e5-a88e-705d82_1ejm8un.png)

2. Add the extension

![](https://storage.crisp.chat/users/helpdesk/website/-/d/4/1/a/d41ac5a8c2cb1800/ad85ef4d-8409-44e7-a102-90b470_ev8kbl.png)

3. Create an account on Grammarly

![](https://storage.crisp.chat/users/helpdesk/website/-/5/e/5/d/5e5de42c3af02800/09b71d7a-2310-43ef-acb7-6d8ca5_9uxyzb.png)

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

![](https://storage.crisp.chat/users/helpdesk/website/-/8/d/e/f/8defef6d17124000/a5109d77-7e98-4751-a811-ae1695_d1zxdo.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/-/5/6/d/e/56de11828d702000/a74c28a4-4f92-4159-a7c4-566714_11aiqh4.png)

2. Choose the extension you need

![](https://storage.crisp.chat/users/helpdesk/website/-/e/7/d/4/e7d495e8a4369000/e7185709-7333-4d53-b08c-e3c1d9_5ohavi.png)

3. Add the extension to your browser

![](https://storage.crisp.chat/users/helpdesk/website/-/f/d/b/9/fdb9e8f80ce7c000/be7c504d-838e-46d1-9729-5b13cd_1jsbbhq.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!