reCAPTCHA is a free service that protects your site from spam and abuse, using risk analysis techniques to tell humans and bots apart.
United States
Negative Captcha AlternativesAnti-Spam Tools and other similar apps like Negative Captcha
Negative Captcha is described as 'A negative captcha has the exact same purpose as your run-of-the-mill image captcha: To keep bots from submitting forms. Image ("positive") captchas do this by implementing a step which only humans can do, but bots cannot: read jumbled characters from an image' and is a Anti-Spam tool. There are more than 10 alternatives to Negative Captcha for a variety of platforms, including Web-based, Self-Hosted, SaaS, PHP and Wordpress apps. The best Negative Captcha alternative is reCAPTCHA, which is free. Other great apps like Negative Captcha are Procaptcha, hCaptcha, mosparo and UniqPin.
Alternatives list
28 reCAPTCHA alternatives
Prosopo Procaptcha redefines user verification with a unique approach that emphasizes privacy and security. It's a pioneering solution designed to offer an alternative to conventional CAPTCHA systems that often compromise user privacy.
Cost / License
- Freemium
- Open Source (Apache-2.0)
Application type
Platforms
- Online
- Software as a Service (SaaS)
- Wordpress
+3
mosparo is the modern solution for protecting your online forms from spam. The protection method is quite simple: mosparo blocks spam using rules matching the form’s data. The detection method is comparable to an e-mail spam filter.
+9
Mollom is a freemium web service to get rid of spam, unwanted content and fake users on your Drupal, Wordpress and Joomla site or blog.
Cost / License
- Freemium
- Proprietary
Alerts
- Discontinued
Platforms
- Online
Confident Technologies provides free CAPTCHA security software called Confident CAPTCHA, a picture CAPTCHA that stops spam and bots. Download our free CAPTCHA security software today.
Cost / License
- Freemium
- Proprietary
Alerts
- Discontinued
Platforms
- Online
+2
GeeTest protects your websites, mobile apps and APIs from bad bot attacks with zero user friction. Its self-learning defense model based on Graph Convolutional Networks and massive volumes of biometric data collected in the past 7 years allows GeeTest to identify and mitigate...
+3
Cost / License
- Free
- Proprietary
Platforms
- Self-Hosted
- PHP
P
Cost / License
- Free
- Open Source
Platforms
- Self-Hosted
The Arkose Labs platform undermines the economic drivers behind fraud until perpetrators are compelled to abandon attacks. Real-time risk classification of traffic with interactive enforcement challenges, the solution defeats automated attacks...
Cost / License
- Paid
- Proprietary
Platforms
- Software as a Service (SaaS)
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