10 Free Tools to Filter and Block Porn on the Internet

6. Kurupira WebFilter

Kurupira WebFilter is one of the free anti porn software that comes with a good amount of features which makes it very configurable. Other than just blocking bad websites and also applications, it can also block instant messengers such as Google Talk, Windows Live Messenger and also social networking websites such as Facebook, Twitter and etc. It can also automatically take screenshots in interval and set time limits. If you go to the Settings, you can find email notification options where you can be notified when a website or application has been blocked.

Kurupira WebFilter

One of the feature that we really liked is the application exception where an application added to the list will be ignored by Kurupira WebFilter. Normally an anti pornography software only has an on or off switch where you either turn it on, or completely off. You can probably use a portable version of Firefox so it does not intervene with the settings.

Take note during installation where an option will be selected by default to change your web browser’s homepage to Kurupira’s. Kurupira WebFilter does have some tampering system where the filtering system will still continue to function even after terminated the process, password protection and enabling the stealth mode to hide the tray icon. The only drawback is the software can be easily uninstalled without any restriction which makes it very easy to bypass.

Download Kurupira WebFilter

7. netCheckPost


netCheckPost may be your choice if you are looking for a really easy to use software that will simply block porn websites. After installing the program, there is no settings to configure the program and you can only enable or disable the filtering by right clicking on the tray icon at the notification area. You are required to set a master password during installation and it is required if you want to disable or uninstall the program. Terminating the process will still continue to block bad websites.

Download netCheckPost

8. WebPatrol

The free edition of WebPatrol is like the smaller brother of the PRO version that comes only with website and application filtering and time controls. As for the PRO version, it cost $29.95 and it is a full fledged parental control software that comes with keylogger and screenshot capturing that may be a little intrusive. Unlike most of the anti porn software, WebPatrol does not show the user that they are accessing a blocked website and simply shows a white blank web page. There are 7 banned categories and also custom banned or allowed websites. Application filtering allows you to prohibit running of web browser or chat programs and even custom list.


WebPatrol has some characteristics of a powerful invisible keylogger because it can only be uninstalled from the program’s menubar (File > Uninstall…). It also supports custom hotkeys to launch the user interface or from the RUN window. WebPatrol would be perfect if the filtering still works even after terminating the cprotect.exe process from task manager.

Download WebPatrol

9. Drainware Parental Control

Drainware PC is a free and open source parental control software that is hosted on SourceForge. It acts as a local proxy server where the web browsers are automatically configured to route the connections to a localhost proxy address and the proxy options are disabled from being changed or tampered. You can block websites based from a list of categories, apply black and white list, and also control the file extensions that you want to block.

Drainware Parental Control

The filtering will only work if the web browser is set to use the localhost proxy and major web browsers such as Firefox, Internet Explorer, Safari and Chrome works fine except for Opera. In fact it is easy to bypass Drainware PC’s restriction by using a portable version of Firefox and set the connection settings to no proxy. You should also refrain from using Drainware PC is your computer gets the Internet connection from a proxy server because the software overwrites the connection settings. Accessing to any of the options requires a valid password but there is a flaw where it can be easily uninstalled without a password by running “Drainware PC Uninstaller.exe” file located at the C:\drainware hidden folder. Out all 10 anti porn software, Drainware installation file is the largest at nearly 70MB in size.

Download Drainware Parental Control

10. Stop P-O-R-N

Stop P-O-R-N is a slightly stricter parental control software that simply terminates the web browser when it detects a blocked website being loaded on the web browser. Other than that, accessing the program’s folder, or Windows utilities such as regedit and task manager will be terminated as well. Other than just stopping porn, it can also stop file sharing and chatting programs from running. There are three protection levels to select at the options and it also comes with a simple keylogger.

Stop P-O-R-N

By default, Stop P-O-R-N is installed in public user’s documents folder and it comes with a “security measure” feature where it will try to prevent from being tampered. For example, the program will automatically terminate Windows Task Manager or Registry Editor when it is launched. Even if you try to access the program’s folder that is installed in the Document’s folder, the explorer will be closed as well. If you find this security feature a little too annoying, it can be disabled in the configuration options by checking the “Disable Security Measures” checkbox. A simple way to bypass Stop P-O-R-N is to use the taskkill command in command prompt to end the it.exe and halth.exe processes.

Download Stop P-O-R-N

Additional Note: We tested Norton Family by Symantec and it is very unstable because we couldn’t save the settings and it constantly prompts us to login even though we are very sure that we entered the correct parents login credentials. We also did not include AOL Parental Controls because it asks for a credit card to verify as a verification that we are over the age of 18.

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