Better Search Replace (BSR) Pro is a time-saving migration plugin that makes moving WordPress easy.
Demo: https://bettersearchreplace.com
ReReplacer PRO is Joomla! component and system plugin that allows you to replace anything in your Joomla! website output with what you want.
Working with database tables can be easy and convenient if you have the DB Replacer component. This extension for Joomla sites allows you to quickly search and replace data in any table.
Demo: https://regularlabs.com/dbreplacer/features
Advanced Find and Replace is a fast, easy-to-use utility that is an excellent assistant for programmers or webmasters in particular.
Demo: http://www.abacre.com/afr/