regex

Search Regex adds a powerful set of search and replace functions to WordPress posts, pages, custom post types, and other data.

The Validated Field add-on for Advanced Custom Fields provides input masking and server-side validation of other field types.

A plugin for converting @user mentions, #hashtags and URLs in a tweet into clickable links.

A WordPress plugin and GravityForms addon to enable users to use regex string on text input field to control user input.

BuddyPress - Validate XProfile data with PCRE regular expressions.

Replace any html you write in editor (Visual or HTML) with pre-defined string. Use Regexp to define patterns for replacement.

rexCrawler is a regular expression web-crawler plugin. Able to parse websites, save data and show them on pages.

Professional redirect management with multiple HTTP status codes, regex support, and export/import capabilities.

Easily hide/remove e-mails, urls, phone numbers and other text from your users. The actual text is never removed; it is just hidden from website visit …

Maintain a gallery by including all published images in your library which match a regex (in title or description).