re.place is a module wich acts as a content filter. It searches for pre-defined 
regular expressions and replaces matches with pre-defined replacements.
It is possible to specify different replacements based on several 
“replacement restrictions” — for authenticated users and guests, 
for pages and non-pages currently (see “Screenshots”).
For example, you can implement the functionality of cross-linker module, while 
adding the possibility to insert “target” parameter, “rel=nofollow”, style 
information, etc.
As another example, you can insert in your posts custom smiles or the like.
As another example, you can add custom markup to you blog, like 
 Google(something) would insert link to <code>www.google.com/search?q=something</code>, 
 TouTube(youtube_id) will insert <code><object ...></code>, wich displays that video, 
etc-etc. See “Other notes” for more examples.
You can replace http links with some other stuff for guests, leaving as is for 
authenticated users (see https://wordpress.org/support/topic/297405).
Every entry can have custom “order” number, so you can chain your replacements.
re.place stores entries in database.
Management GUI provided to list entries, add, edit or delete entries.
See changelog for some changes tracking.
<h3>A brief examples</h3>
<ol>
<li>
As a search field, use ‘<code>_—</code>‘ (space in place of <code>_</code>!), 
as a replace — ‘<code>#160;—</code>‘. This will insert non-breaking space 
before every em-dash.
Mmm… You may wish even use ‘<code><span 
style="letter-spacing:0.1ex;">#160;—</code>‘ as a replase to insert 
narrower non-breaking space… If you love typography too much… And you 
can make space after dot wider…
</li>
<li>
Search for ‘<code>:-)</code>‘ and replace with:
‘<code><img src="http://www.kolobok.us/smiles/standart/smile3.gif"' . 
 'alt=":-)" title=":-) (nice smile -- http://www.kolobok.us/smiles/standart/smile3.gif)"' . 
 'style="vertical-align: middle;" /></code>‘
</li>
<li>
Search pattern: <code>YouTube\(([a-zA-Z_0-9\-]*)\)</code>
Replace pattern:
‘<code><object width="425" height="344" data="http://www.youtube.com/v/\1" type="application/x-shockwave-flash"> 
 <param name="movie" value="http://www.youtube.com/v/\1"></param> 
</object></code>‘
This will allow you to use markups like <code>YouTube(TMCf7SNUb-Q)</code> to insert 
Youtube video fragments easily.
</li>
<li>
How to Mass Remove Link (mass deactivate URL Linked text inside posts)? 
(https://wordpress.org/support/topic/288020)
Search pattern: <code><a [^>]*>([^<]*)<\/a></code>
Replace pattern: <code>\1</code>
This will “deactivate” all links in all posts 
(e.g. replace <code><a href="...">Try!</a></code> with just <code>Try!</code>). 
Note, you can activate them back, deactivating this <code>re.place</code> entry.
</li>
<li>
Want to insert drop caps easily?.. Use ‘<code><drop>L</drop>orem ipsum...</code>‘ in your 
posts and replace it with <code>\1</code>‘. Use angle brackets, 
and if you (accidentally) deactivate re.place, these “tags” won’t mess you page.
</li>
<li>
New — in v0.1.3 — [beta-] feature: you can specify different replace patterns 
for authenticated users and “guests”. Sorry, i’ll update screenshots and doc 
ASAP. 🙂
</li>
</ol>

re.place

re.place adds content filter wich searches in posts for specified patterns (regular expressions) and replaces matches found with specified strings.

Uzair

The Easy Search Replace plugin lets you find and replace any text, HTML, or URL across your WordPress site in real time—without editing files or the database. 
It’s the safest way to do search and replace on front-end output. Update branding, fix old links, or remove footer credit with a few clicks.
Target replacements precisely with: 
– CSS selectors (e.g., <code>.footer</code>, <code>#site-title</code>, <code>h2</code>) 
– Post Types (Posts, Pages, CPTs) 
– Specific Post IDs (comma separated) 
– Exact URLs (one per line)
Why it’s safe: 
All changes are applied dynamically at render time. Disable the plugin and your original content is unchanged.
Popular use cases 
– Remove or replace theme footer credits. 
– Replace company names, links, or copyright lines. 
– Update outdated or HTTP→HTTPS URLs. 
– Find/replace only inside specific HTML elements. 
– Limit changes to selected posts/pages/URLs.
<h3>Features</h3>
<ul>
<li>Real-time search replace and find replace for text, HTML, and URLs. </li>
<li>Remove footer credit or any unwanted text/link. </li>
<li>Optional CSS selector targeting (classes, IDs, tags). </li>
<li>Limit by post type, post ID, or URL. </li>
<li>Case-insensitive mode (Ignore Case). </li>
<li>Multiple rules, executed in order. </li>
<li>Lightweight: parses DOM only when selector rules exist. </li>
<li>Clean, simple settings UI.</li>
</ul>
<h3>Usage</h3>
<ol>
<li>Open Settings → Easy Search Replace. </li>
<li>Find: Enter text/HTML/URL to search. </li>
<li>Replace with: Enter the replacement (leave empty to remove—great for footer credits). </li>
<li>(Optional) CSS Selector to restrict to specific elements (e.g., <code>.site-footer</code>, <code>#main</code>, <code>h1</code>). </li>
<li>(Optional) Limit by Post Types, Post IDs, or URLs (one per line). </li>
<li>Enable Ignore Case if needed. </li>
<li>Add multiple rules and Save Changes.</li>
</ol>
<h3>Examples</h3>
Replace text globally
Find: Old Company 
Replace: New Company
Remove footer credit (selector-based)
Find: Powered by MyTheme 
Replace: 
Selector: .site-footer
Replace URL site-wide
Find: http://oldsite.com 
Replace: https://newsite.com
Only on specific posts
Find: Coming Soon 
Replace: Launching Now 
Post IDs: 25,47,88
Case-insensitive 
Enable Ignore Case to match “WordPress”, “wordpress”, etc.

Easy Search Replace – Find & Replace Text/HTML/URLs, Remove Footer Credit

Real-time search & replace for text, HTML, and URLs. Target elements, post types/IDs/URLs. Safely remove footer credit no database changes.

re.place vs Easy Search Replace – Find & Replace Text/HTML/URLs, Remove Footer Credit