Captchas and anti-spam Gems
| # | Total Rank | Daily Rank | Name | Summary | 
|---|---|---|---|---|
| 1 | 604 | 699 | recaptcha | Helpers for the reCAPTCHA API | 
| 2 | 1,079 | 1,797 | invisible_captcha | Unobtrusive, flexible and complete spam protection for Rails applications using honeypo... | 
| 3 | 2,316 | 1,966 | voight_kampff | Voight-Kampff detects bots, spiders, crawlers and replicants | 
| 4 | 4,634 | 5,278 | rakismet | Rakismet is the easiest way to integrate Akismet or TypePad's AntiSpam into your Rails ... | 
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