diff --git a/src/General/Settings/Advanced.html b/src/General/Settings/Advanced.html
index 36333e97e..03d81f883 100644
--- a/src/General/Settings/Advanced.html
+++ b/src/General/Settings/Advanced.html
@@ -19,6 +19,16 @@
   <button id="update-archives">Update now</button> Last updated: <time id="lastarchivecheck"></time> <label><input type="checkbox" name="archiveAutoUpdate"> Auto-update</label>
 </fieldset>
 
+<fieldset>
+  <legend>External Catalog</legend>
+  <div class="warning" data-feature="External Catalog"><code>External Catalog</code> is disabled.</div>
+  <div>
+    URLs of external catalog sites, where <code>%board</code> is to be replaced by the board name.<br>
+    Each URL should be followed by <code>;boards:</code> and optionally <code>;exclude:</code> and a list of supported/excluded boards in the format explained in the Filter guide.
+  </div>
+  <textarea hidden name="externalCatalogURLs" class="field" spellcheck="false"></textarea>
+</fieldset>
+
 <fieldset>
   <legend>Override 4chan Image Host</legend>
   <div>Change 4chan image links to this domain. Leave blank for no change.</div>
diff --git a/src/Miscellaneous/CatalogLinks.coffee b/src/Miscellaneous/CatalogLinks.coffee
index 91c91a8c3..e0ae26d5e 100644
--- a/src/Miscellaneous/CatalogLinks.coffee
+++ b/src/Miscellaneous/CatalogLinks.coffee
@@ -1,4 +1,5 @@
 CatalogLinks =
+
   init: ->
     if g.SITE.software is 'yotsuba' and (Conf['External Catalog'] or Conf['JSON Index']) and !(Conf['JSON Index'] and g.VIEW is 'index')
       selector = switch g.VIEW
@@ -58,13 +59,15 @@ CatalogLinks =
     return unless (CatalogLinks.enabled ? Conf['Catalog Links']) and list
 
     for a in $$('a:not([data-only])', list)
-      continue if (
-        a.hostname not in ['boards.4chan.org', 'boards.4channel.org', 'catalog.neet.tv'] or
-        !(board = a.pathname.split('/')[1]) or
-        board in ['f', 'status', '4chan'] or
-        a.pathname.split('/')[2] is 'archive' or
-        $.hasClass a, 'external'
-      )
+      unless (board = a.dataset.board)
+        continue if (
+          a.hostname not in ['boards.4chan.org', 'boards.4channel.org'] or
+          !(board = a.pathname.split('/')[1]) or
+          board in ['f', 'status', '4chan'] or
+          a.pathname.split('/')[2] is 'archive' or
+          $.hasClass a, 'external'
+        )
+        a.dataset.board = board
 
       # Href is easier than pathname because then we don't have
       # conditions where External Catalog has been disabled between switches.
@@ -74,9 +77,27 @@ CatalogLinks =
         a.href += (if a.hash then '/' else '#') + a.dataset.indexOptions
     return
 
+  externalParse: ->
+    CatalogLinks.externalList = {}
+    for line in Conf['externalCatalogURLs'].split '\n'
+      continue if line[0] is '#'
+      url = line.split(';')[0]
+      boards   = Filter.parseBoards(line.match(/;boards:([^;]+)/)?[1] or '*')
+      excludes = Filter.parseBoards(line.match(/;exclude:([^;]+)/)?[1]) or {}
+      for board of boards
+        unless excludes[board] or excludes[board.split('/')[0] + '/*']
+          CatalogLinks.externalList[board] = url
+    return
+
+  external: ({siteID, boardID}) ->
+    CatalogLinks.externalParse() unless CatalogLinks.externalList
+    external = (CatalogLinks.externalList["#{siteID}/#{boardID}"] or CatalogLinks.externalList["#{siteID}/*"])
+    if external then external.replace(/%board/g, boardID) else undefined
+
   catalog: (board=g.BOARD.ID) ->
-    if Conf['External Catalog'] and board in ['3', 'a', 'adv', 'an', 'asp', 'biz', 'c', 'cgl', 'ck', 'cm', 'co', 'diy', 'f', 'fa', 'fit', 'g', 'gd', 'his', 'i', 'int', 'jp', 'k', 'lgbt', 'lit', 'm', 'mlp', 'mu', 'n', 'news', 'o', 'out', 'p', 'po', 'pol', 's4s', 'sci', 'sp', 'tg', 'toy', 'trv', 'tv', 'v', 'vg', 'vip', 'vp', 'vr', 'w', 'wg', 'wsg', 'wsr', 'x']
-      "//catalog.neet.tv/#{board}/"
+    siteID = '4chan.org'
+    if Conf['External Catalog'] and (external = CatalogLinks.external({siteID, boardID: board}))
+      external
     else if Conf['JSON Index'] and Conf['Use <%= meta.name %> Catalog']
       if location.hostname in ['boards.4chan.org', 'boards.4channel.org'] and g.BOARD.ID is board and g.VIEW is 'index' then '#catalog' else "//#{BoardConfig.domain(board)}/#{board}/#catalog"
     else
diff --git a/src/config/Config.coffee b/src/config/Config.coffee
index 57be795fe..6c13b63dc 100644
--- a/src/config/Config.coffee
+++ b/src/config/Config.coffee
@@ -825,6 +825,10 @@ Config =
     lastarchivecheck:  0
     archiveAutoUpdate: true
 
+  externalCatalogURLs: """
+    //catalog.neet.tv/%board/;boards:4chan.org:3,a,adv,an,asp,biz,c,cgl,ck,cm,co,diy,f,fa,fit,g,gd,his,i,int,jp,k,lgbt,lit,m,mlp,mu,n,news,o,out,p,po,pol,s4s,sci,sp,tg,toy,trv,tv,v,vg,vip,vp,vr,w,wg,wsg,wsr,x
+  """
+
   boardnav: """
     [ toggle-all ]
     a-replace
diff --git a/src/css/style.css b/src/css/style.css
index 7fd7f1c70..0ba73a513 100644
--- a/src/css/style.css
+++ b/src/css/style.css
@@ -658,7 +658,8 @@ div[data-checked="false"] > .suboption-list {
 .section-advanced textarea {
   height: 150px;
 }
-.section-advanced textarea[name="archiveLists"] {
+.section-advanced textarea[name="archiveLists"],
+.section-advanced textarea[name="externalCatalogURLs"] {
   height: 75px;
 }
 .section-advanced .archive-cell {