BSK Gravity Forms Custom Validation


The plugin help you validate users input and let users submit right data on gravity forms form. You may apply defined users to your order form, registration form, quotes form etc. So you may limit users enter right phone number, license number, post code for specific zone and VAT number…

You may also use checkbox rule to ask users read and agree to your terms, privacy policy etc.

Please check the following rules and we’d like to receive your rule request.

  1. Age must between given years old

  2. Must be numeric value and between given values

  3. Must be given value

  4. Length must same as given number

  5. The character at the position X must be

  6. The character at the revise position X must be

  7. Latitude must be numeric and between given values

  8. Longitude must be numeric and between given values

  9. Checkbox options must all be checked

We’d like to receive your custom validation request.

  • Please note:

Here is the free version, it only has some base rules but meets the needs of some customers and help them well.

Enjory it!


  • Submenu item under Gravity Forms, custom validation lists
  • Add rule to list
  • Apply custom validation list to form field


It’s a standard WordPress plugin and you may install it from WordPress’ plugin Dashboard. After activate the plugin then you can create blacklist or whitelist or ip address list or email list.


Please visit for documents or support.


Your plugin worked perfectly and what great customer service!! Your custom updating the plugin for specific needs is just amazing. My Clients were very happy.


“BSK Gravity Forms Custom Validation” 是一個開源的軟體。以下的人對這個外掛作出了貢獻。




  • Fixed: the bug of wrong position for revise Must Be / Must Not Be rule

  • Compatible with Gravity Forms’ 2.6.x

  • Compatible with WordPress 5.9.3


  • Compatible with Gravity Forms’ 2.5.x

  • Compatible with WordPress 5.8


  • Support validation for Gravity Forms’ conditional logic

  • Support PHP Regular Expression for “Must be given value” rule

  • Support must be consisted of give characters for “Must be given value” rule

  • Add must not be rules

  • Improve admin interface

  • Compatible with WordPress 5.6.2


  • Fixed the bug of invalid message on save rule

  • Fixed the bug of form setting for “save blocked form data” not working


  • Fixed the error when delete Gravity Forms form

  • Fixed the issue of validation message cannot be render correctly on blocked form data list

  • Reading old plugins’ custom validation data to this plugin


  • The new user friendly interface let you do settings easily.

  • New form settings to enable / disable for individual form.

  • Compatible with Gravity Forms new coming 2.5 version.

  • Compatible with WordPress 5.5

  • Separated the custom validation feature from our old plugin Gravity Forms Blacklist & Custom Validation, because we received many users request that they just want to use custom validation to avoid wrong information from their orders. The old plugin includes blacklist, whitelist, email list and ip list feature and not so simple to these users.