> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.tyslo.com/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 to Insert HTML Code into the Form, Upsells, and Offers

All text editors use a rich text editor, which allows you to insert HTML code directly.

For example, to add HTML code to a form:

1. Open the form builder
2. Click **Add New Field**
3. Go to **Custom Fields**
4. Select **Text HTML**
5. Edit the field and 


![](https://storage.crisp.chat/users/helpdesk/website/-/4/b/1/5/4b154ca9ad47c000/image_s26qp8.png)

5. Then, edit the field and click the **“Source Code”** icon to insert your HTML.


![](https://storage.crisp.chat/users/helpdesk/website/-/4/b/1/5/4b154ca9ad47c000/cleanshot-2026-04-21-at-010406_v84fx6.png)
6. Paste your HTML code into the newly opened field, then click **Save**.

![](https://storage.crisp.chat/users/helpdesk/website/-/4/b/1/5/4b154ca9ad47c000/cleanshot-2026-04-21-at-010624_vkc5rs.png)

Please note that this option is available throughout the app wherever the rich text editor is used, such as in upsells, quantity offers, and downsells.


|| Important note: adding HTML code directly is a paid feature, if you are on free plan you will not see the source code icon, you need to upgrade your plan to access it, however you can still edit the text manually even if you are on free plan using the text editor available tools