Akismet is described as 'Checks your comments and contact form submissions against our global database of spam to prevent your site from publishing malicious content' and is a Anti-Spam tool in the security & privacy category. There are more than 10 alternatives to Akismet for a variety of platforms, including Web-based, Wordpress, Self-Hosted, Linux and Mac apps. The best Akismet alternative is Antispam Bee, which is both free and Open Source. Other great apps like Akismet are StopForumSpam, YouTube Spammer Purge, CleanTalk and Signal Spam.
Say Goodbye to comment spam on your WordPress blog or website. Antispam Bee blocks spam comments and trackbacks effectively, without captchas and without sending personal information to third party services. It is free of charge, ad-free and 100% GDPR compliant.
Your favorite and most trusted "one stop shop" for the prevention of forum & blog spam, trusted by over 200,000 forums...
It allows you to filter and search for spammer comments on your channel and other's channel(s) in many different ways AND delete/report them all at once (see features below).
Anti-Spam Features. CleanTalk protects your website from spam bots and spam in Comments, Orders, Widgets, Registrations, Bookings, And any custom web form, Contact Emails, Subscriptions, Checks the existing comments and users for spam.
Signal Spam provides email and web client tools to allow you to submit spam emails you have received. These spam emails are then analysed, categorised and added to a database of known abuse. ISP's can subscribe to this database for free to help filter out and block spam.
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.
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.
SpamPatrol provides API and integrations that allow you to analyze messages submitted on your forms to see if they are spam or not. Instead of worrying about block lists, CAPTCHAs, honey pot fields, etc.
MUTE silently blocks automated spam submitted through website contact forms — without CAPTCHA, without friction, and without any changes to your existing setup.
Germany
EU
United Kingdom
United States
France
Belgium
Poland
Japan
Works great without calling out to a remote service, and doesn't require your visitors to be using JavaScript either. No need to deal with API keys or licensing.