> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.opnform.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 use URL form pre-fill?

You can pre-fill your forms dynamically by passing some parameters to your form URL. This can be useful for instance, when sending out forms via email to pre-fill the name and email of the person you are sending it to.  
    
To pre-fill your form via URL parameters:  
*   Go to your form edition page (the form must already be created)
*  Click on the 'Share" tab located on the left side of the screen
*  Click the Url form pre-fill button
  



![](https://storage.crisp.chat/users/helpdesk/website/-/1/b/5/b/1b5b982fc3df6500/chromexdzpjehic3_e6w1na.png)

*   Complete your form only with the inputs you wish to pre-fill
*   Click the "Generate Pre-filled URL" button
  


![](https://storage.crisp.chat/users/helpdesk/website/-/1/b/5/b/1b5b982fc3df6500/chrome9scwmx5nmi_my3hc7.png)


*   Your pre-filled URL appear right below. You can copy it and try it out!


${youtube}[](Y4WDRxVReQE)