Lightweight, modern open-source CAPTCHA alternative designed using SHA-256 proof-of-work.
Portugal
EU
GeeTest CAPTCHA AlternativesAnti-Spam Tools and other similar apps like GeeTest CAPTCHA
GeeTest CAPTCHA is described as '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' and is a Anti-Spam tool. There are more than 10 alternatives to GeeTest CAPTCHA for a variety of platforms, including Web-based, Self-Hosted, SaaS, PHP and Docker apps. The best GeeTest CAPTCHA alternative is Cap Captcha, which is both free and Open Source. Other great apps like GeeTest CAPTCHA are Anubis, reCAPTCHA, Procaptcha and hCaptcha.
Alternatives list
48 Anubis alternativesApplies sha256 proof-of-work challenges to incoming HTTP requests, targeting AI crawlers, bots that ignore robots.txt, and automated scrapers, protecting server resources and preventing unwanted search engine indexing for privacy-focused sites.
Cost / License
- Free Personal
- Open Source (MIT)
Application type
Platforms
- Self-Hosted
- Go (Programming Language)
- Docker
28 reCAPTCHA alternativesreCAPTCHA is a free service that protects your site from spam and abuse, using risk analysis techniques to tell humans and bots apart.
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
31 hCaptcha alternativeshCaptcha is designed to solve the most labor intensive problem in machine learning: labeling massive amounts of data in a timely, affordable, and reliable way.
Cost / License
- Free
- Open Source (AGPL-3.0)
Application type
Platforms
- Online
- Self-Hosted
- Software as a Service (SaaS)
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.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Online
- Self-Hosted
- Python
- JavaScript
- Drupal
- Django
- PHP
- Mautic
- Wordpress
+9
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Online
- Software as a Service (SaaS)
UniqPin is a free for non-commercial use service which destiny improve ability of interfaces detect a human or a computer operate with it.
Cost / License
- Free Personal
- Proprietary
Application type
Platforms
- Self-Hosted
- JavaScript
- PHP
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
Canada
United States
United Kingdom
India
Switzerland
Germany
Belgium
Poland