ykjsw

wpReplacer is a post rewrite plugin, it can automatic rewrite your posts or pages
you can setting:
Replace Level: Good replace the most terms Better fewer replacements, higher quality Best fewest replacements, higher quality
the percentage of replaceable words you would like to rewrite
Negative Words: words that will not be replaced

WP Replacer

wpReplacer is a post rewrite plugin, it can automatic rewrite your posts or pages

mgsimon

Pretty Permalinks requires outofthebox the module mod_rewrite. This module is a workaround to use pretty permalinks without any rewrite rule. The errorhandling – customized errorpage – will be used to resolve pretty permalinks. mg404Rewrite-Modul sends HTTP-Header-Code depending on the request. 
If you have any posts to permalinks, you can try to activate PostProxy to resolve this issue (configurations / misc).
<h3>Licence</h3>
GPL (http://www.gnu.org/copyleft/gpl.html)

mg404Rewrite

This module is a workaround to use pretty permalinks without any rewrite rule.

WP Replacer vs mg404Rewrite