Duplicate Killer – This extension prevent double entry submissions for Contact Form 7, Forminator and WPForms Lite plugins.

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*Duplicate Killer it’s the easiest way to ensure that a designated field has unique data entered into it. With this plugin you can stop duplicate entries for Contact Form 7, Forminator and WPForms Lite. Extension for Contact Form 7 plugin Limit one submission per Email address, Phone or TextField. Customise error message for duplicate entries. Extension for Forminator plugin Create your best list without duplicates! Choose the unique fields from Email, Phone, TextField. Warn the user that the value inserted has been already submitted! Extension for WPForms Lite Duplicate Killer support one of the best free WordPress forms plugin. Stop your clients to duplicate the entries of your contact forms! Inform your clients when the value has been already submitted! Unique entries per user You can prevent duplicates at the user level, not global. Multiple users can submit the same entry, but a single user cannot submit values they have already submitted before.