9 Best Free Anti spam plugin for WordPress

Spam comments more or less individual newbie blogger trying to create artificial backlinks to build some domain authority and rank higher.

To encounter them either moderate comment box or use anti spam plugin for wordPress site before submitting spam comment pause them. 

Anti Spam plugin for WordPress Site

1. Titan Anti-spam & Security

Its popular anti spam plugin and has to offer different security features. Titan will tighten security from anonymous threats .

Capabilities to scan entire website and detect malware.

with latest update includes powerful firewall rules, huge database i.p address of malicious activity users and malware signature.

When someone submit a comment on your site then run scan in titan global database and process through neurale network to prevent from spammers.

Features :

1. Having strong mechanism means no need of annoying captcha.

2. A robust algorithm against spam bot and you can make changes on filters as spam bot behaviour found different in log .

3. Every single comments will be posted live as submitted and increase engagement and spam comments rejected.

4. Receive plugins updates on defined period of time with successful test on latest cms.

5. Security scanner remove invalid and vulnerable end points, backdoors, SEO spam and malicious redirect.

6. Will remove wordpress version, hide login page and recommend strong password.

2. Spam protection, AntiSpam, FireWall by CleanTalk

Cleantalk is cloud based anti spam plugin and easily integrated with most of popular contact form like wpform, Ninja form, MailChimp, gravity forms and many other too. 

It's kinda offer service at cost of $ 8 subscribe year after free trail and also have functionality to prevent from spam bot in comments box, registeration form, news letter, woocommerce.

Features:

1. Didn't have any comfortablty issue with cache plugin.

2. It will look into existing spam comments and remove them.

3. Stop spam order, booking, survey, polls, widget.

4. Comfortable with GDPR compliance and modile user too.

5. It's spam firewall prevent from spam fload and crawlers.

6. Block disposal email and no captcha, no questions, no maths problem.

3. Akismet Anti spam

It's widely popular plugin and free for personal blog but there is paid subscription available for e-commerce and business sites.

Akismet can take care of comment box and contact form against their global database and pause any spam url before submitting it.

Features:

1. No need to look into every comment because it's does automatically .

2. Look into comment history which was earlier caught doing spam or passed by akismet.

3. Get a list of comment did by a particular user on your blog.

4. It's discard features reject mass spam and save disk space to setup your website.

5. you require to akismet API key to fully functional for personal blog.

4. Stop Spammers

As it says and really does, stop spammer can prevent from spamming in comment box, registerion form, email subscription and successful prevent from spam bot. Some in general type of spam as well.

Stop spammer Anti spam plugin require to install and that all no need to setup anything at all. If somehow require then this plugin has 50 + sophisticated configurations .

In addition has features run diagnostic tests to know how's doing, activity logs, upto date teated with latest WordPress version and frequently release stop spammer update.

5. Antispam bee

It's free of any kind charge and ad free also and antispam bee complient 100% GDPR.
Antispam bee can work effectively without Captcha, maths problem and making request to some database on cloud service then validate potential spam.

Stop comments if other than English and its treat BB code as spam actually bb code is web markup language used in forum website and allow user to format messages as HTML tags does.

Features:

1. When a someone try spam then you'll receive a notification.

2. delete existing spam in couple of minutes.

3. A amazing statistics on admin area about how effectively encounter rate and raise or fall of spam comments.

4. Mainten own local spam database for future comments and saw whom previously marked as spammer.

5. Block particular country or ip address from commenting. This feature is effective to save bandwidth from aggressive spam bot.

6. Well maintained documentation and FAQ for new users queries.

6. WPBruiser

Its Formally know as goodbye captcha. Along with Anti spam is also offer security plugin features that based upon a algorithm to eliminate spam without messing user experience.

when a plugin use self hosted code then save addition usage of bandwidth and fast response on the go. As matter of fact some Anti spam plugins move spam comments in spam folder so, later can you monitor and delete them.

But wpbruiser stop them on very beginning of submitting a comment, registerion form, brute force attack, spam bots.

Features:

1. Integrated with standard WordPress login, forget password and registeration form.

2. It will automatically block i.p address and same manually block /unblock  maintain blacklist and whitelist.

3. comfortable with any CDN service like cloudflare, Incapsula, Cloudfront, RackSpace etc.

4. Offers statistics, chart and maps of every spam comment and forms.

5. Comparably with cache plugins like WP super cache, w3 total cache, WP fastest cache so on and didn't distribute loading speed, work invisible for visitors.

7. Stop WP Comment Spam

If you're looking for business and e-commerce website at cost of nothing then Stop WP comment spam is available without any API key.

It's simple Anti spam plugin only require to install and didn't offer any security features. That reason make this plugin super lightweight.

Features:

1. Its prevent spam comment and store them for review under spam tab.

2. Spam comments can be scheduled for delete automatically after period of days and offer do same manually.

3. It didn't have problem using along with security plugin and another anti spam plugin.

4. Integrated with contact form 7, gravity forms and WP form.

5. Prevent registration form bots on woocommerce account.

8. OOPSpam Anti-Spam

Oopspam require API key to properly  function and support ninja form and gravity forms. It didn't depends on solo database or algorithm rather than have each type of spam filter like machine learning modules, Language outlier detection algorithm, spam word pattern detection and multi I.p address block list.

Can look accuracy rate on spam score, privacy friendly, constant updates spam campaigns and with single API manage multi website.

9. SPAM Protection and Anti SPAM 

It's really one of the most powerful plugin because support almost every forms and make request on specific form support .

On spot identify and delete spam no matter what type is for like content spam, registration spam, video login spam protection, trackback spam and comment spam.

Features:

1. Eliminate subscribe spam, contact spam, spam order, woo commerce spam.

2. Spam filter : that's a program prevent from unwanted messages and emails.

3. Block by spam prone country and Google reCAPTCHA login and registerion protection.

4. Prevent from spam by stop word list even can make your own wordlist and encounter spam bot .