Sblam! Alternatives
Sblam! is described as 'Open-source implementation of server-side spam filtering of blog comments and forum posts' and is a Anti-Spam tool in the development category. There are more than 10 alternatives to Sblam! for a variety of platforms, including Web-based, Self-Hosted, SaaS, Wordpress and PHP apps. The best Sblam! alternative is Cap Captcha, which is both free and Open Source. Other great apps like Sblam! are reCAPTCHA, IronWall, Antispam Bee and hCaptcha.
Alternatives list
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
Anti-spam plugin blocks automatic spam in comments section. No captcha. Plugin is easy to use: just install it and it just works. Blocked comments can be stored in the Spam area if needed. This can be enabled/disabled via Settings page.


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Cost / License
- Free
- Proprietary
Platforms
- Self-Hosted
- PHP
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


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This simple addition to the wonderful Contact Form 7 (CF7) plugin adds basic honeypot anti-spam functionality to thwart spambots without the need for an ugly captcha.
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)

- 30 NoBot CAPTCHA API alternatives
NoBot CAPTCHA API is a developer-friendly alternative to Google reCAPTCHA that helps prevent automated bot traffic without compromising user privacy.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Online
- Software as a Service (SaaS)


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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
- Open Source
Platforms
- Self-Hosted
Cost / License
- Free
- Proprietary
Platforms
- Online



































