diff --git a/LICENSE.md b/LICENSE.md
index 92953d6..86af39e 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,4 +1,4 @@
-Copyright (c) 2014–2017 Marc Görtz <https://marcgoertz.de/>
+Copyright (c) 2014–2019 Marc Görtz <https://marcgoertz.de/>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
diff --git a/README.md b/README.md
index 1fffd19..3db05f9 100644
--- a/README.md
+++ b/README.md
@@ -1,29 +1,37 @@
 # My PopClip extensions
 
-These are some personal [PopClip](http://pilotmoon.com/popclip)
+These are some personal [PopClip](https://pilotmoon.com/popclip)
 extensions I use on a regular basis.
 
 ## List of extensions
 
- * **Jira ID**<br>
-   ![Jira ID Sample](https://cdn.rawgit.com/Dreamseer/popclip-extensions/master/jira-id-sample.png)<br>
-   You all know this: The Project Manager Guy comes along asking “Hey,
-   what about LOLPROJECT-1337? Will it be in the release next week?”, or
-   the Controlling Guy asks “Can you put some estimates on AWESOME-42?”
-   And you need to fire up your browser, type in the URL of your Jira
-   installation, append the ticket ID… ugh! Struggle no more, here comes
-   the PopClip Jira ID extension: Just select the ticket ID, click the
-   fancy Jira icon in PopClip and… abracadabra, there you go!
-   Additionally the URL is put into your clipboard.
-
- * **Open in Chrome Canary**<br>
-   This is almost the same extension as
-   [Open in Chrome](http://pilotmoon.com/popclip/extensions//page/OpenInChrome),
-   but it opens the current URL in Chrome Canary.
+* **Jira ID**<br>
+  ![Jira ID Sample](https://cdn.rawgit.com/Dreamseer/popclip-extensions/master/jira-id-sample.png)<br>
+  You all know this: The Stake Holder Guy comes along asking “Hey,
+  what about LOLPROJECT-1337? Will it be released next week?”, or
+  the Product Owner Guy asks “Can you put some estimates on AWESOME-42?”
+  And you need to fire up your browser, type in the URL of your Jira
+  installation, append the ticket ID… ugh! Struggle no more, here comes
+  the PopClip Jira ID extension: Just select the ticket ID, click the
+  fancy Jira icon in PopClip and… abracadabra, there you go!
+  Additionally the URL is put into your clipboard.
+
+* **Redact**<br>
+  Replaces selected text with a pre-defined symbol. Useful if the
+  Slack Admin Guy disables deletion of messages while still allowing
+  editing.
+
+* **Open in Chrome Canary**<br>
+  This is almost the same extension as
+  [Open in Chrome](https://pilotmoon.com/popclip/extensions//page/OpenInChrome),
+  but it opens the current URL in Chrome Canary. (You could also use
+  [Choosy](https://www.choosyosx.com/)
+  and the
+  [Choosy PopClip Extension](https://github.com/georgebrock/choosy-popclip).)
 
 ## License
 
-Copyright (c) 2014–2017 Marc Görtz <https://marcgoertz.de/>
+Copyright (c) 2014–2019 Marc Görtz <https://marcgoertz.de/>
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the
diff --git a/redact.popclipextz b/redact.popclipextz
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diff --git a/src/redact/Config.plist b/src/redact/Config.plist
new file mode 100644
index 0000000..3487d92
--- /dev/null
+++ b/src/redact/Config.plist
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+	<dict>
+		<key>Version</key>
+		<integer>1</integer>
+		<key>Extension Name</key>
+		<string>Redact</string>
+		<key>Extension Identifier</key>
+		<string>de.marcgoertz.popclip.extension.redact</string>
+		<key>Extension Description</key>
+		<string>Redact the selected text.</string>
+		<key>Actions</key>
+		<array>
+			<dict>
+				<key>After</key>
+				<string>paste-result</string>
+				<key>Image File</key>
+				<string>redact.png</string>
+				<key>Script Interpreter</key>
+				<string>/usr/bin/php</string>
+				<key>Shell Script File</key>
+				<string>redact.php</string>
+				<key>Title</key>
+				<string>Redact</string>
+			</dict>
+		</array>
+		<key>Options</key>
+		<array>
+			<dict>
+				<key>Option Identifier</key>
+				<string>symbol</string>
+				<key>Option Label</key>
+				<string>Redacting symbol</string>
+				<key>Option Type</key>
+				<string>string</string>
+				<key>Option Default Value</key>
+				<string>▬</string>
+			</dict>
+		</array>
+	</dict>
+</plist>
diff --git a/src/redact/redact.php b/src/redact/redact.php
new file mode 100755
index 0000000..2484601
--- /dev/null
+++ b/src/redact/redact.php
@@ -0,0 +1,6 @@
+<?php
+mb_internal_encoding('UTF-8');
+$input = getenv('POPCLIP_TEXT');
+$length = mb_strlen($input);
+$symbol = getenv('POPCLIP_OPTION_SYMBOL');
+echo str_repeat($symbol, $length);
diff --git a/src/redact/redact.png b/src/redact/redact.png
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index 0000000..203d3c5
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