diff --git a/src/Filtering/Filter.coffee b/src/Filtering/Filter.coffee
index 0075c907e..f5790e148 100644
--- a/src/Filtering/Filter.coffee
+++ b/src/Filtering/Filter.coffee
@@ -2,7 +2,8 @@ Filter =
   filters: {}
   results: {}
   init: ->
-    return unless g.VIEW in ['index', 'thread'] and Conf['Filter']
+    return unless g.VIEW in ['index', 'thread', 'catalog'] and Conf['Filter']
+    return if g.VIEW is 'catalog' and not Conf['Filter in Native Catalog']
 
     unless Conf['Filtered Backlinks']
       $.addClass doc, 'hide-backlinks'
@@ -89,9 +90,12 @@ Filter =
           (@filters[key] or= []).push filter
 
     return unless Object.keys(@filters).length
-    Callbacks.Post.push
-      name: 'Filter'
-      cb:   @node
+    if g.VIEW is 'catalog'
+      Filter.catalog()
+    else
+      Callbacks.Post.push
+        name: 'Filter'
+        cb:   @node
 
   # Parse comma-separated list of boards.
   # Sites can be specified by a beginning part of the site domain followed by a colon.
@@ -166,6 +170,41 @@ Filter =
     if noti and Unread.posts and (@ID > Unread.lastReadPost) and not QuoteYou.isYou(@)
       Unread.openNotification @, ' triggered a notification filter'
 
+  catalog: ->
+    return unless (url = g.SITE.urls.catalogJSON?(g.BOARD))
+    Filter.catalogData = {}
+    $.ajax url,
+      onloadend: Filter.catalogParse
+    Callbacks.CatalogThreadNative.push
+      name: 'Filter'
+      cb:   @catalogNode
+
+  catalogParse: ->
+    if @status not in [200, 404]
+      new Notice 'warning', "Failed to fetch catalog JSON data. #{if @status then "Error #{@statusText} (#{@status})" else 'Connection Error'}", 1
+      return
+    for page in @response
+      for item in page.threads
+        Filter.catalogData[item.no] = item
+    g.BOARD.threads.forEach (thread) ->
+      if thread.catalogViewNative
+        Filter.catalogNode.call thread.catalogViewNative
+    return
+
+  catalogNode: ->
+    return unless @boardID is g.BOARD.ID and Filter.catalogData[@ID]
+    return if QuoteYou.db?.get {siteID: g.SITE.ID, boardID: @boardID, threadID: @ID, postID: @ID}
+    {hide, hl, top} = Filter.test(g.SITE.Build.parseJSON Filter.catalogData[@ID], @)
+    if hide
+      @nodes.root.hidden = true
+    else
+      if hl
+        @highlights = hl
+        $.addClass @nodes.root, hl...
+      if top
+        $.prepend @nodes.root.parentNode, @nodes.root
+        g.SITE.catalogPin? @nodes.root
+
   isHidden: (post) ->
     !!Filter.test(post).hide
 
diff --git a/src/General/Settings.coffee b/src/General/Settings.coffee
index bd639ab02..133164d82 100644
--- a/src/General/Settings.coffee
+++ b/src/General/Settings.coffee
@@ -492,6 +492,9 @@ Settings =
     if compareString < '00001.00014.00009.00001'
       if data['Use Faster Image Host']? and not data['fourchanImageHost']?
         set 'fourchanImageHost', (if data['Use Faster Image Host'] then 'i.4cdn.org' else '')
+    if compareString < '00001.00014.00010.00001'
+      unless data['Filter in Native Catalog']?
+        set 'Filter in Native Catalog', false
     changes
 
   loadSettings: (data, cb) ->
diff --git a/src/General/Settings/Filter-guide.html b/src/General/Settings/Filter-guide.html
index 8a6a3ea84..02bba5805 100644
--- a/src/General/Settings/Filter-guide.html
+++ b/src/General/Settings/Filter-guide.html
@@ -51,7 +51,3 @@
     For example: <code>type:filename+filesize+dimensions;</code>.<br>
   </li>
 </ul>
-<p>
-  Note: If you&#039;re using the native catalog rather than <%= meta.name %>&#039;s catalog, <%= meta.name %>&#039;s filters do not apply there.<br>
-  The native catalog has its own separate filter list.
-</p>
diff --git a/src/classes/Callbacks.coffee b/src/classes/Callbacks.coffee
index f35629d9b..31aee94f5 100644
--- a/src/classes/Callbacks.coffee
+++ b/src/classes/Callbacks.coffee
@@ -2,6 +2,7 @@ class Callbacks
   @Post          = new Callbacks 'Post'
   @Thread        = new Callbacks 'Thread'
   @CatalogThread = new Callbacks 'Catalog Thread'
+  @CatalogThreadNative = new Callbacks 'Catalog Thread'
 
   constructor: (@type) ->
     @keys = []
diff --git a/src/classes/CatalogThreadNative.coffee b/src/classes/CatalogThreadNative.coffee
new file mode 100644
index 000000000..f66bb1ab9
--- /dev/null
+++ b/src/classes/CatalogThreadNative.coffee
@@ -0,0 +1,12 @@
+class CatalogThreadNative
+  toString: -> @ID
+
+  constructor: (root) ->
+    @nodes =
+      root:  root
+      thumb: $(g.SITE.selectors.catalog.thumb, root)
+    @siteID  = g.SITE.ID
+    @boardID = @nodes.thumb.parentNode.pathname.split(/\/+/)[1]
+    @board = g.boards[@boardID] or new Board(@boardID)
+    @ID = @threadID = +(root.dataset.id or root.id).match(/\d*$/)[0]
+    @thread = @board.threads[@ID] or new Thread(@ID, @board)
diff --git a/src/config/Config.coffee b/src/config/Config.coffee
index 2e538533a..c3032bfae 100644
--- a/src/config/Config.coffee
+++ b/src/config/Config.coffee
@@ -187,6 +187,11 @@ Config =
         'When enabled, shows backlinks to filtered posts with a line-through decoration. Otherwise, hides the backlinks.'
         1
       ]
+      'Filter in Native Catalog': [
+        true
+        'Apply 4chan X filters in native catalog.'
+        1
+      ]
       'Recursive Hiding': [
         true
         'Hide replies of hidden posts, recursively.'
diff --git a/src/css/style.css b/src/css/style.css
index 12d309922..0be891aea 100644
--- a/src/css/style.css
+++ b/src/css/style.css
@@ -1462,7 +1462,8 @@ input[name="Default Volume"] {
 :root:not(.werkTyme) .catalog-thread.filter-highlight .catalog-thumb,
 :root.werkTyme .catalog-thread.filter-highlight:not(:hover),
 :root.werkTyme:not(.catalog-hover-expand) .catalog-thread.filter-highlight,
-:root.werkTyme.catalog-hover-expand .catalog-thread.filter-highlight > .catalog-container:hover > .catalog-post {
+:root.werkTyme.catalog-hover-expand .catalog-thread.filter-highlight > .catalog-container:hover > .catalog-post,
+:root.catalog $site$catalog$thread.filter-highlight$site$relative$catalogHighlight {
   box-shadow: 0 0 3px 3px rgba(255, 0, 0, .5);
 }
 :root:not(.werkTyme) .catalog-thread.watched .catalog-thumb,
diff --git a/src/main/Main.coffee b/src/main/Main.coffee
index 8fd3ce8ba..812513430 100644
--- a/src/main/Main.coffee
+++ b/src/main/Main.coffee
@@ -325,7 +325,9 @@ Main =
       new Notice 'warning', msg
 
     # Parse HTML or skip it and start building from JSON.
-    unless Index.enabled
+    if g.VIEW is 'catalog'
+      Main.initCatalog()
+    else if !Index.enabled
       Main.initThread() 
     else
       Main.expectInitFinished = true
@@ -431,6 +433,49 @@ Main =
         $.event 'PostsRemoved', null, thread.nodes.root
       return
 
+  initCatalog: ->
+    s = g.SITE.selectors.catalog
+    if s and (board = $ s.board)
+      threads = []
+      errors  = []
+
+      Main.addCatalogThreadsObserver = new MutationObserver Main.addCatalogThreads
+      Main.addCatalogThreadsObserver.observe board, {childList: true}
+
+      Main.parseCatalogThreads $$(s.thread, board), threads, errors
+      Main.handleErrors errors if errors.length
+
+      Main.callbackNodes 'CatalogThreadNative', threads
+
+    Main.expectInitFinished = true
+    $.event '4chanXInitFinished'
+
+  parseCatalogThreads: (threadRoots, threads, errors) ->
+    for threadRoot in threadRoots
+      try
+        thread = new CatalogThreadNative threadRoot
+        if thread.thread.catalogViewNative?.nodes.root isnt threadRoot
+          thread.thread.catalogViewNative = thread
+          threads.push thread
+      catch err
+        # Skip threads that we failed to parse.
+        errors.push
+          message: "Parsing of Catalog Thread No.#{(threadRoot.dataset.id or threadRoot.id).match(/\d+/)} failed. Thread will be skipped."
+          error: err
+    return
+
+  addCatalogThreads: (records) ->
+    threadRoots = []
+    for record in records
+      for node in record.addedNodes when node.nodeType is Node.ELEMENT_NODE and node.matches(g.SITE.selectors.catalog.thread)
+        threadRoots.push node
+    return unless threadRoots.length
+    threads = []
+    errors  = []
+    Main.parseCatalogThreads threadRoots, threads, errors
+    Main.handleErrors errors if errors.length
+    Main.callbackNodes 'CatalogThreadNative', threads
+
   callbackNodes: (klass, nodes) ->
     i = 0
     cb = Callbacks[klass]
diff --git a/src/site/SW.tinyboard.coffee b/src/site/SW.tinyboard.coffee
index 2ab00499f..cc78ec912 100644
--- a/src/site/SW.tinyboard.coffee
+++ b/src/site/SW.tinyboard.coffee
@@ -94,9 +94,14 @@ SW.tinyboard =
       opHighlight:   ' > .op'
       replyPost:     '.reply'
       replyOriginal: 'div[id^="reply_"]:not(.hidden)'
+      catalogHighlight: ' > .thread'
     comment:   '.body'
     spoiler:   '.spoiler'
     quotelink: 'a[onclick^="highlightReply("]'
+    catalog:
+      board:  '#Grid'
+      thread: '.mix'
+      thumb:  '.thread-image'
     boardList: '.boardlist'
     boardListBottom: '.boardlist.bottom'
     styleSheet: '#stylesheet'
@@ -186,3 +191,6 @@ SW.tinyboard =
 
   isLinkified: (link) ->
     /\bnofollow\b/.test(link.rel)
+
+  catalogPin: (threadRoot) ->
+    threadRoot.dataset.sticky = 'true'
diff --git a/src/site/SW.yotsuba.coffee b/src/site/SW.yotsuba.coffee
index fcd2e12fa..38a74994c 100644
--- a/src/site/SW.yotsuba.coffee
+++ b/src/site/SW.yotsuba.coffee
@@ -54,9 +54,14 @@ SW.yotsuba =
       opHighlight:   '.opContainer'
       replyPost:     ' > .reply'
       replyOriginal: '.replyContainer:not([data-clone])'
+      catalogHighlight: ''
     comment:   '.postMessage'
     spoiler:   's'
     quotelink: ':not(pre) > .quotelink' # XXX https://github.com/4chan/4chan-JS/issues/77: 4chan currently creates quote links inside [code] tags; ignore them
+    catalog:
+      board:  '#threads'
+      thread: '.thread'
+      thumb:  '.thumb'
     boardList: '#boardNavDesktop > .boardList'
     boardListBottom: '#boardNavDesktopFoot > .boardList'
     styleSheet: 'link[title=switch]'