Additional Info
Package ID
First Created
December 27, 2007, 10:43:17 PM
Last Updated
August 04, 2018, 12:46:17 AM

reCAPTCHA for SMF v2.0.0

Adds reCAPTCHA support to SMF
Compatible With 2.0, 2.0.7, 2.0.10, 2.0.15
Latest version v2.0.0
Downloads 82,823
Reviews 0
Rating 0/5
Subscribers 236
License (View License)
This modification allows you to use reCAPTCHA instead of the built-in Visual Verification system. It supports the SMF 2.0 series.

Portions of the code use the PHP reCAPTCHA API.

This mod and other information can be found at:


  • Use reCAPTCHA on your forum in place of or in combination with the built-in verification options.
  • Support for built-in reCAPTCHA themes

How to Use
You can enable reCAPTCHA by going to:

Admin -> Configuration -> Security and Moderation -> Anti-Spam

A set of keys are required for operation of reCAPTCHA. A link is provided in the settings to register for a key pair.

2.0 Upgrade Note
If you are upgrading from a version older than 2.0, there is one major change to be aware of.

Starting with version 2.0, this modification no longer replaces the built-in image verification. It now operates independently of those settings. If you don't want the built-in image verification, make sure to set it to "None".

Known Issues

  • The error messages are the built-in ones, so they will talk about letters not being filled in or matching.

This code is licensed under the terms of the BSD 3-Clause License. SMF code used in this mod is copyright Simple Machines. All original code is copyright Michael Johnson.

The reCAPTCHA PHP library is licensed under the BSD 3-Clause License.

"SMF" and "Simple Machines" are trademarks of Simple Machines.
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