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Blue Captcha

by jotis

4.7
(15 ratings)

Blue Captcha is a powerful and highly customized WordPress plugin that effectively protects your WP blogs from spammers and unwanted persons. It is easily installed and provides high protection against spammers, bots or unwanted persons.

Do you like Blue Captcha? Then Support it!

If you like Blue Captcha, then you can help it grow by donating one dollar. Any donation will be highly appreciated and will help in further development of this plugin.

Features:

  • It can be applied to any of the following : login form, registration form, commentary form or password recovery form
  • It’s highly customized
  • It has 7 predefined CAPTCHA difficulty levels to choose from – of course, you can adjust your CAPTCHA settings and create a custom level
  • The possible CAPTCHA customizations are more than enough
  • It can apply the same or totally different CAPTCHA settings on login form, registration form, commentary form and password recovery form
  • It can display CAPTCHA to only non-registered users or registered users
  • It can preview CAPTCHA image before applying it
  • It supports 5 different fonts and 30 different background images
  • It supports single or double CAPTCHA layer
  • It can display up to 20(!) characters on Captcha Images
  • It is capable of adding extra drawing (lines, circles, grid, transparent lines) on CAPTCHA image
  • It is capable of keeping log file which registers all activities concerning user logins, user registrations, user comments and password recovery
  • It has “Hall of Shame” (HoS)
  • It provides blocking options as well
  • It can export the entire log file or HoS into CSV file (Excel)
  • With the help of log file and HoS, it’s easy to track down the IP address of spammers or unwanted persons and ban them for ever

You can visit Blue Captcha Page for more information.

Blue Captcha Translation

Blue Captcha is now available in Greek, Spanish, Russian, Italian, Brazilian Portuguese, Serbo-Croatian, Slovenian and Arabic.

I would be very grateful if someone is willing to translate Blue Captcha to another language.
For those interested, the template translation file (“blue-captcha.pot”) is located on “languages” folder of blue-captcha plugin.

Contribution

Special Thanks To The Following Contributors:

Leon Roskar (http://www.qb.si) => Slovenian Translation
Borisa Djuraskovic (http://www.webhostinghub.com) => Serbo-Croatian Translation
João Victor T. Magalhães => Brazilian Portuguese Translation
Ericka Morales Hernández (http://todoriesgo.net) => Italian Translation
Alex Balashov => Russian Translation
Andrew Kurtis (http://www.webhostinghub.com) => Spanish Translation
Christos Bakopoulos => Arabic Translation

Screenshots

Login Options

Login Options

Some Possible Customizations

Some Possible Customizations

Log File

Log File

Blue Captcha On Register Form

Blue Captcha On Register Form

Blue Captcha On Commentary Form #1

Blue Captcha On Commentary Form #1

Blue Captcha On Commentary Form #2

Blue Captcha On Commentary Form #2

Failed Captcha Checks - 99% of cases are bot attempts (especially A, B, C & D)

Failed Captcha Checks - 99% of cases are bot attempts (especially A, B, C & D)

Blocking Options

Blocking Options

General Options

General Options

Typical examples of spam bots trying to bypass normal form submission

Typical examples of spam bots trying to bypass normal form submission

Hall of Shame

Hall of Shame

Typical Brute Force Attack spotted in Log File

Typical Brute Force Attack spotted in Log File

Plugin Details

Active Installs
400
Total Downloads
37,970
Version
2.1.0
Requires WP
4.9
Requires PHP
7.0
Tested Up To
7.0.4
Added
2012-03-19
Last Updated
2026-08-17 9:37pm GMT

Ratings

5
13
4
1
3
0
2
0
1
1