Using the Lead list view, user can send the lead details update form to the lead's email address.
Steps to Send Lead Update Form in Bulk:
- Go to Leads Tab
- Using the checkbox select Leads for those you want to send the Leads Update Form.
- Click on Send Lead Update Form in Bulk button to send the form.

To send the Lead Update form To All Leads:
- Go to Leads Tab
- Click on the top Checkbox and select all Leads records
- Now click on Send Lead Update Form in Bulk button.
- Once click on Send Lead Update Form in Bulk button, the Update Lead form will send to all selected Leads successfully.

- All Leads receive Update Leads Detail Form in the email. Like the below image.

Note - This feature is available in the paid version.
P.S. Discover Update Client Details, the easy way to keep client information up to date in Salesforce. Find it on AppExchange - https://appexchange.salesforce.com/appxListingDetail?listingId=a0N3A00000EcsATUAZ