Recommendations for java captcha libraries

java jakarta-ee captcha recaptcha simplecaptcha
skaffman picture skaffman · May 1, 2009 · Viewed 72k times · Source

I'm looking for a replacement for JCaptcha, which doesn't seem to be maintained any more, and isn't very good to begin with. The replacement has to integrate nicely with JavaEE webapps.

As I can see it, there are three options:

  • JCaptcha - No longer maintained, crude API
  • SimpleCaptcha - much nicer API, nicer captchas, but seems to be Java6 only
  • ReCaptcha - easy to use, uses remote web-service to generate captchas, but not much control over look and feel

Has anyone used any others, that they'd recommend?

Answer

jchilders picture jchilders · Dec 24, 2010

I am the author of SimpleCaptcha. While I would recommend -- for humanity's sake -- using ReCaptcha where you can, I provided SimpleCaptcha because some organizations have policies which prohibit libraries like ReCaptcha. SimpleCaptcha is meant to be entirely stand-alone, with no external dependencies: as long as you are in a J2EE container, you should be good.

Also, SimpleCaptcha is now available for either Java 1.5 or Java 6.

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