diff --git a/src/General/Index.coffee b/src/General/Index.coffee
index c67022a5c..ac43dc2b6 100644
--- a/src/General/Index.coffee
+++ b/src/General/Index.coffee
@@ -663,7 +663,7 @@ Index =
     for data, i in Index.liveThreadData
       Index.liveThreadDict[data.no] = data
       Index.threadPosition[data.no] = i
-      Index.parsedThreads[data.no] = obj = g.SITE.Build.parseJSON data, g.BOARD.ID
+      Index.parsedThreads[data.no] = obj = g.SITE.Build.parseJSON data, g.BOARD
       obj.filterResults = results = Filter.test obj
       obj.isOnTop  = results.top
       obj.isHidden = results.hide or ThreadHiding.isHidden(obj.boardID, obj.threadID)
@@ -685,7 +685,7 @@ Index =
       Index.parsedThreads[threadID].isHidden
 
   isHiddenReply: (threadID, replyData) ->
-    PostHiding.isHidden(g.BOARD.ID, threadID, replyData.no) or Filter.isHidden(g.SITE.Build.parseJSON replyData, g.BOARD.ID)
+    PostHiding.isHidden(g.BOARD.ID, threadID, replyData.no) or Filter.isHidden(g.SITE.Build.parseJSON replyData, g.BOARD)
 
   buildThreads: (threadIDs, isCatalog, withReplies) ->
     threads    = []
diff --git a/src/General/Test.coffee b/src/General/Test.coffee
index 30b7f03f9..d62d94b20 100644
--- a/src/General/Test.coffee
+++ b/src/General/Test.coffee
@@ -72,7 +72,7 @@ Test =
       for postData in posts
         if postData.no is post.ID
           t1 = new Date().getTime()
-          obj = g.SITE.Build.parseJSON postData, post.board.ID
+          obj = g.SITE.Build.parseJSON postData, post.board
           root = g.SITE.Build.post obj
           t2 = new Date().getTime()
           Test.time += t2 - t1
diff --git a/src/Monitoring/ThreadWatcher.coffee b/src/Monitoring/ThreadWatcher.coffee
index f1ced39a4..dd2c7ef41 100644
--- a/src/Monitoring/ThreadWatcher.coffee
+++ b/src/Monitoring/ThreadWatcher.coffee
@@ -355,7 +355,7 @@ ThreadWatcher =
       for postObj in @response.posts
         continue unless postObj.no > (data.last or 0) and postObj.no > lastReadPost
         continue if QuoteYou.db?.get {siteID, boardID, threadID, postID: postObj.no}
-        continue if Filter.isHidden(site.Build.parseJSON postObj, boardID, siteID)
+        continue if Filter.isHidden(site.Build.parseJSON postObj, {siteID, boardID})
 
         unread++
         quotingYou = postObj.no if !Conf['Require OP Quote Link'] and youOP
diff --git a/src/site/SW.tinyboard.coffee b/src/site/SW.tinyboard.coffee
index e6c18094c..2ab00499f 100644
--- a/src/site/SW.tinyboard.coffee
+++ b/src/site/SW.tinyboard.coffee
@@ -56,6 +56,10 @@ SW.tinyboard =
     catalogJSON: ({siteID, boardID}) ->
       root = Conf['siteProperties'][siteID]?.root
       if root then "#{root}#{boardID}/catalog.json" else ''
+    file: ({siteID, boardID}, filename) ->
+      "#{Conf['siteProperties'][siteID]?.root or "http://#{siteID}/"}#{boardID}/#{filename}"
+    thumb: (board, filename) ->
+      SW.tinyboard.urls.file board, filename
 
   selectors:
     board:         'form[name="postcontrols"]'
@@ -117,8 +121,25 @@ SW.tinyboard =
       /<a [^>]*\bhref="[^"]*\/([^\/]+)\/res\/(\d+)\.\w+#(\d+)"/g
 
   Build:
-    parseJSON: ->
-      SW.yotsuba.Build.parseJSON.apply SW.yotsuba.Build, arguments
+    parseJSON: (data, board) ->
+      o = SW.yotsuba.Build.parseJSON(data, board)
+      if data.ext is 'deleted'
+        delete o.file
+        $.extend o,
+          files: []
+          fileDeleted: true
+          filesDeleted: [0]
+      if data.extra_files
+        for extra_file, i in data.extra_files
+          if extra_file.ext is 'deleted'
+            o.filesDeleted.push i
+          else
+            file = SW.yotsuba.Build.parseJSONFile(data, board)
+            o.files.push file
+        if o.files.length
+          o.file = o.files[0]
+      o
+
     parseComment: (html) ->
       html = html
         .replace(/<br\b[^<]*>/gi, '\n')
diff --git a/src/site/SW.yotsuba.Build.coffee b/src/site/SW.yotsuba.Build.coffee
index 73ca88070..2371d2930 100644
--- a/src/site/SW.yotsuba.Build.coffee
+++ b/src/site/SW.yotsuba.Build.coffee
@@ -31,13 +31,14 @@ Build =
   postURL: (boardID, threadID, postID) ->
     "#{Build.threadURL(boardID, threadID)}#p#{postID}"
 
-  parseJSON: (data, boardID, siteID) ->
+  parseJSON: (data, {siteID, boardID}) ->
     o =
       # id
       ID:       data.no
+      postID:   data.no
       threadID: data.resto or data.no
       boardID:  boardID
-      siteID:   siteID or g.SITE.ID
+      siteID:   siteID
       isReply:  !!data.resto
       # thread status
       isSticky: !!data.sticky
@@ -45,6 +46,7 @@ Build =
       isArchived: !!data.archived
       # file status
       fileDeleted: !!data.filedeleted
+      filesDeleted: if data.filedeleted then [0] else []
     o.info =
       subject:  $.unescape data.sub
       email:    $.unescape data.email
@@ -62,29 +64,37 @@ Build =
       o.info.capcode = data.capcode.replace(/_highlight$/, '').replace(/_/g, ' ').replace(/\b\w/g, (c) -> c.toUpperCase())
       o.capcodeHighlight = /_highlight$/.test data.capcode
       delete o.info.uniqueID
+    o.files = []
     if data.ext
-      o.file =
-        name:      ($.unescape data.filename) + data.ext
-        url: if boardID is 'f'
-          "#{location.protocol}//#{ImageHost.flashHost()}/#{boardID}/#{encodeURIComponent data.filename}#{data.ext}"
-        else
-          "#{location.protocol}//#{ImageHost.host()}/#{boardID}/#{data.tim}#{data.ext}"
-        height:    data.h
-        width:     data.w
-        MD5:       data.md5
-        size:      $.bytesToString data.fsize
-        thumbURL:  "#{location.protocol}//#{ImageHost.thumbHost()}/#{boardID}/#{data.tim}s.jpg"
-        theight:   data.tn_h
-        twidth:    data.tn_w
-        isSpoiler: !!data.spoiler
-        tag:       data.tag
-        hasDownscale: !!data.m_img
-      o.file.dimensions = "#{o.file.width}x#{o.file.height}" unless /\.pdf$/.test o.file.url
+      o.file = SW.yotsuba.Build.parseJSONFile(data, {siteID, boardID})
+      o.files.push o.file
     # Temporary JSON properties for events such as April 1 / Halloween
     for key of data when key[0] is 'x'
       o[key] = data[key]
     o
 
+  parseJSONFile: (data, {siteID, boardID}) ->
+    site = g.sites[siteID]
+    filename = if site.software is 'yotsuba' and boardID is 'f'
+      "#{encodeURIComponent data.filename}#{data.ext}"
+    else
+      "#{data.tim}#{data.ext}"
+    o =
+      name:      ($.unescape data.filename) + data.ext
+      url:       site.urls.file({siteID, boardID}, filename)
+      height:    data.h
+      width:     data.w
+      MD5:       data.md5
+      size:      $.bytesToString data.fsize
+      thumbURL:  site.urls.thumb({siteID, boardID}, "#{data.tim}s.jpg")
+      theight:   data.tn_h
+      twidth:    data.tn_w
+      isSpoiler: !!data.spoiler
+      tag:       data.tag
+      hasDownscale: !!data.m_img
+    o.dimensions = "#{o.width}x#{o.height}" if data.h? and !/\.pdf$/.test(o.url)
+    o
+
   parseComment: (html) ->
     html = html
       .replace(/<br\b[^<]*>/gi, '\n')
@@ -104,7 +114,7 @@ Build =
     Build.parseComment(html).trim().replace(/\s+$/gm, '')
 
   postFromObject: (data, boardID) ->
-    o = Build.parseJSON data, boardID
+    o = Build.parseJSON data, {boardID, siteID: g.SITE.ID}
     Build.post o
 
   post: (o) ->
diff --git a/src/site/SW.yotsuba.coffee b/src/site/SW.yotsuba.coffee
index 8d32a7cbd..0f1ad3d80 100644
--- a/src/site/SW.yotsuba.coffee
+++ b/src/site/SW.yotsuba.coffee
@@ -8,6 +8,11 @@ SW.yotsuba =
     threadsListJSON: ({boardID})      -> "#{location.protocol}//a.4cdn.org/#{boardID}/threads.json"
     archiveListJSON: ({boardID})      -> if BoardConfig.isArchived(boardID) then "#{location.protocol}//a.4cdn.org/#{boardID}/archive.json" else ''
     catalogJSON:     ({boardID})      -> "#{location.protocol}//a.4cdn.org/#{boardID}/catalog.json"
+    file: ({boardID}, filename) ->
+      hostname = if boardID is 'f' then ImageHost.flashHost() else ImageHost.host()
+      "#{location.protocol}//#{hostname}/#{boardID}/#{filename}"
+    thumb: ({boardID}, filename) ->
+      "#{location.protocol}//#{ImageHost.thumbHost()}/#{boardID}/#{filename}"
 
   isPrunedByAge: ({boardID}) -> boardID is 'f'