Filtration
Filtration allows you to filter out any keywords you wish, and replace them with any specified text. This allows you to remove profanity, or any other content automatically from titles, content and comments. This…
Consider an alternative
Filtration shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 14 years ago, and scores 23/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 14 years
- Only tested up to WordPress 3.3 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Filtration stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| filter | >100 |
| filtered | >100 |
| filtration | #24 |
| keywords | >100 |
| profanity | #36 |
Version adoption
Share of active sites per release.
About Filtration
From the official readme · v1.2.1Description
Filtration allows you to filter out any keywords you wish, and replace them with any specified text. This allows you to remove profanity, or any other content automatically from titles, content and comments. This replacement text can be applied to each character in a filtered word, or to the filtered word as a whole.
You can choose which WordPress elements to filter, including:
- Post/Page Titles
- Post/Page Content
- Comments
When chosing Filtration keywords, they can be strict or non-strict keywords. Non-strict keywords are removed ONLY when they stand alone in the content, with boundry characters on either site. Strict keywords are removed anywhere in the string.
i.e. If ‘cake’ is specified as a non-strict keyword, it will be filtered in the string ‘the cake was great’, but it will be left alone in the string ‘pancakes are fantastic’. On the other hand, if ‘cake’ is strict, it will be filtered in both cases above and replaced with the filter character.
Keywords are replaced with the Filter Character (specified in Filtration Options).
Installation
This section describes how to install Filtration.
- Download and extract the Plugin zip file.
- Copy the Filration folder to your Plugin folder (wp-content/plugins/)
- Activate the plugin via the ‘Plugins’ menu.
- After activation, visit the settings page by clicking Filtration under the Settings menu.
- Enter your keywords, selected the type of content to filter, and add a filter character.
Changelog
1.2.1
- Slight bug fixes and code tweaks.
1.2
- Added the ability to have the replacement character replace all characters in a filtered word, or the entire word.
1.1
- Reorganized code to prevent bad interactions with user code.
- Input now sanitized.
- Text validation now checks input to see if it matches required format.
- A few speed improvements and bug fixes.
1.0
- Added filtration of comments, titles and content.
For developers
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Best Filtration alternatives
All filter plugins →
FAQ
Filtration: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 8, 2026
Is Filtration free?
Yes. Filtration is free to download and use from the official WordPress.org plugin directory.
Is Filtration safe to use in 2026?
Filtration shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 14 years ago, and scores 23/100 on our health check.
How many websites use Filtration?
Filtration is active on 10+ WordPress websites and has been downloaded 2,709 times since it launched in July 2012. It was downloaded 46 times in the last 30 days.
Does Filtration work with WordPress 7.1?
Filtration is officially tested up to WordPress 3.3.2, while the latest release is 7.1.3. It may still work, but try it on a staging site first.
When was Filtration last updated?
The latest version, 1.2.1, was released on July 18, 2012 (14 years ago).
Who makes Filtration?
Filtration is developed and maintained by RyanNielson.
What are the best alternatives to Filtration?
The most popular alternatives to Filtration are HUSKY (80K+ installs), Search & Filter (50K+ installs) and Allow HTML in Category Desc… (8K+ installs).
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