ReCaptcha v2 for Contact Form 7
ReCaptcha v2 for Contact Form 7 Install Statistics
Try plugin: ReCaptcha v2 for Contact Form 7
We'll create fresh WordPress site with ReCaptcha v2 for Contact Form 7 installed. You have 20 minutes to test the plugin after that site we'll be deleted.
About ReCaptcha v2 for Contact Form 7
Adds reCaptcha v2 from Contact Form 7 5.0.5 that was dropped on Contact Form 7 5.1Description
Contact Form 7 v5.1 dropped support for reCaptcha v2 along with the [recaptcha] tag December 2018. This plugin brings that functionality back from Contact Form 7 5.0.5 and re-adds the [recaptcha] tag.
If this plugin is installed before updating Contact Form 7 from v5.0.5 to v5.1.1 then it will carry over your old API keys. At that point you will just need to head to this plugins settings page to tell the website to use reCaptcha v2.
Once installed and configured it should be the same reCaptcha functionality you are used to in previous versions of Contact Form 7.