diff --git a/Gemfile b/Gemfile
index ac88b0223c2..d7ed141f272 100644
--- a/Gemfile
+++ b/Gemfile
@@ -183,4 +183,5 @@ if ENV["IMPORT"] == "1"
   gem 'redcarpet'
   gem 'sqlite3', '~> 1.3.13'
   gem 'ruby-bbcode-to-md', github: 'nlalonde/ruby-bbcode-to-md'
+  gem 'reverse_markdown'
 end
diff --git a/script/import_scripts/ipboard3.rb b/script/import_scripts/ipboard3.rb
new file mode 100644
index 00000000000..f3aaa859a56
--- /dev/null
+++ b/script/import_scripts/ipboard3.rb
@@ -0,0 +1,375 @@
+require "mysql2"
+require "reverse_markdown"
+require File.expand_path(File.dirname(__FILE__) + "/base.rb")
+
+class ImportScripts::IPBoard3 < ImportScripts::Base
+
+  BATCH_SIZE  ||= 5000
+  UPLOADS_DIR ||= "/path/to/uploads"
+
+  def initialize
+    super
+
+    @client = Mysql2::Client.new(
+      host: ENV["DB_HOST"] || "localhost",
+      username: ENV["DB_USER"] || "root",
+      password: ENV["DB_PW"],
+      database: ENV["DB_NAME"],
+    )
+  end
+
+  def execute
+    import_users
+    import_categories
+    import_topics
+    import_posts
+    import_personal_topics
+    import_personal_posts
+  end
+
+  def import_users
+    puts "", "importing users..."
+
+    last_user_id = -1
+    total_users = mysql_query("SELECT COUNT(*) count FROM members").first["count"]
+
+    batches(BATCH_SIZE) do |offset|
+      users = mysql_query(<<~SQL
+        SELECT member_id id
+             , name
+             , email
+             , joined
+             , ip_address
+             , title
+             , CONCAT(bday_year, '-', bday_month, '-', bday_day) date_of_birth
+             , last_activity
+             , member_banned
+             , g_title
+             , pp_main_photo
+             , pp_about_me
+          FROM members
+     LEFT JOIN groups ON member_group_id = g_id
+     LEFT JOIN profile_portal ON member_id = pp_member_id
+         WHERE member_id > #{last_user_id}
+         ORDER BY member_id
+         LIMIT #{BATCH_SIZE}
+      SQL
+      ).to_a
+
+      break if users.empty?
+
+      last_user_id = users[-1]["id"]
+      user_ids = users.map { |u| u["id"] }
+
+      next if all_records_exist?(:users, user_ids)
+
+      create_users(users, total: total_users, offset: offset) do |u|
+        next if u["name"].blank? && !Email.is_valid?(u["email"])
+
+        {
+          id: u["id"],
+          username: u["name"],
+          email: u["email"],
+          created_at: Time.zone.at(u["joined"]),
+          registration_ip_address: u["ip_address"],
+          title: CGI.unescapeHTML(u["title"].presence || ""),
+          date_of_birth: (Date.parse(u["date_of_birth"]) rescue nil),
+          last_seen_at: Time.zone.at(u["last_activity"]),
+          admin: !!(u["g_title"] =~ /admin/i),
+          moderator: !!(u["g_title"] =~ /moderator/i),
+          bio_raw: clean_up(u["pp_about_me"]),
+          post_create_action: proc do |new_user|
+            if u["member_banned"] == 1
+              new_user.update(suspended_at: DateTime.now, suspended_till: 100.years.from_now)
+            elsif u["pp_main_photo"].present?
+              path = File.join(UPLOADS_DIR, u["pp_main_photo"])
+              if File.exists?(path)
+                begin
+                  upload = create_upload(new_user.id, path, File.basename(path))
+                  if upload.persisted?
+                    new_user.create_user_avatar
+                    new_user.user_avatar.update(custom_upload_id: upload.id)
+                    new_user.update(uploaded_avatar_id: upload.id)
+                  end
+                rescue
+                  # don't care
+                end
+              end
+            end
+          end
+        }
+      end
+    end
+  end
+
+  def import_categories
+    puts "", "importing categories..."
+
+    categories = mysql_query("SELECT id, parent_id, name, description, position FROM forums ORDER BY id").to_a
+
+    parent_categories = categories.select { |c| c["parent_id"] == -1 }
+    child_categories  = categories.select { |c| c["parent_id"] != -1 }
+
+    create_categories(parent_categories) do |c|
+      {
+        id: c["id"],
+        name: c["name"],
+        description: clean_up(c["description"]),
+        position: c["position"],
+      }
+    end
+
+    create_categories(child_categories) do |c|
+      {
+        id: c["id"],
+        parent_category_id: category_id_from_imported_category_id(c["parent_id"]),
+        name: c["name"],
+        description: clean_up(c["description"]),
+        position: c["position"],
+      }
+    end
+  end
+
+  def import_topics
+    puts "", "importing topics..."
+
+    last_topic_id = -1
+    total_topics = mysql_query(<<~SQL
+      SELECT COUNT(*) count
+        FROM topics
+        JOIN posts ON tid = topic_id
+       WHERE tdelete_time = 0
+         AND new_topic = 1
+    SQL
+    ).first["count"]
+
+    batches(BATCH_SIZE) do |offset|
+      topics = mysql_query(<<~SQL
+        SELECT tid id
+             , title
+             , starter_id
+             , start_date
+             , views
+             , forum_id
+             , pinned
+             , post
+          FROM topics
+          JOIN posts ON tid = topic_id
+         WHERE tdelete_time = 0
+           AND new_topic = 1
+           AND tid > #{last_topic_id}
+         ORDER BY tid
+         LIMIT #{BATCH_SIZE}
+      SQL
+      ).to_a
+
+      break if topics.empty?
+
+      last_topic_id = topics[-1]["id"]
+      topic_ids = topics.map { |t| "t-#{t["id"]}" }
+
+      next if all_records_exist?(:posts, topic_ids)
+
+      create_posts(topics, total: total_topics, offset: offset) do |t|
+        created_at = Time.zone.at(t["start_date"])
+        user_id = user_id_from_imported_user_id(t["starter_id"]) || -1
+
+        {
+          id: "t-#{t["id"]}",
+          title: CGI.unescapeHTML(t["title"]),
+          user_id: user_id,
+          created_at: created_at,
+          views: t["views"],
+          category: category_id_from_imported_category_id(t["forum_id"]),
+          pinned_at: t["pinned"] == 1 ? created_at : nil,
+          raw: clean_up(t["post"], user_id),
+        }
+      end
+    end
+  end
+
+  def import_posts
+    puts "", "importing posts..."
+
+    last_post_id = -1
+    total_posts = mysql_query("SELECT COUNT(*) count FROM posts WHERE new_topic = 0").first["count"]
+
+    batches(BATCH_SIZE) do |offset|
+      posts = mysql_query(<<~SQL
+        SELECT pid id
+             , author_id
+             , post_date
+             , post
+             , topic_id
+             , pdelete_time
+          FROM posts
+         WHERE new_topic = 0
+           AND pid > #{last_post_id}
+         ORDER BY pid
+         LIMIT #{BATCH_SIZE}
+      SQL
+      ).to_a
+
+      break if posts.empty?
+
+      last_post_id = posts[-1]["id"]
+      post_ids = posts.map { |p| p["id"] }
+
+      next if all_records_exist?(:posts, post_ids)
+
+      create_posts(posts, total: total_posts, offset: offset) do |p|
+        next unless t = topic_lookup_from_imported_post_id("t-#{p["topic_id"]}")
+        user_id = user_id_from_imported_user_id(p["author_id"]) || -1
+
+        {
+          id: p["id"],
+          user_id: user_id,
+          created_at: Time.zone.at(p["post_date"]),
+          raw: clean_up(p["post"], user_id),
+          topic_id: t[:topic_id],
+          deleted_at: p["pdelete_time"] > 0 ? Time.zone.at(p["pdelete_time"]) : nil,
+        }
+      end
+    end
+  end
+
+  def import_personal_topics
+    puts "", "import personal topics..."
+
+    last_personal_topic_id = -1
+    total_personal_topics = mysql_query(<<~SQL
+      SELECT COUNT(*) count
+        FROM message_topics
+        JOIN message_posts ON msg_topic_id = mt_id
+       WHERE mt_is_deleted = 0
+         AND msg_is_first_post = 1
+    SQL
+    ).first["count"]
+
+    batches(BATCH_SIZE) do |offset|
+      personal_topics = mysql_query(<<~SQL
+        SELECT mt_id id
+             , mt_date
+             , mt_title
+             , mt_starter_id
+             , mt_to_member_id
+             , mt_invited_members
+             , msg_post
+          FROM message_topics
+          JOIN message_posts ON msg_topic_id = mt_id
+         WHERE mt_is_deleted = 0
+           AND msg_is_first_post = 1
+           AND mt_id > #{last_personal_topic_id}
+         ORDER BY mt_id
+         LIMIT #{BATCH_SIZE}
+      SQL
+      ).to_a
+
+      break if personal_topics.empty?
+
+      last_personal_topic_id = personal_topics[-1]["id"]
+      personal_topic_ids = personal_topics.map { |pt| "pt-#{pt["id"]}" }
+
+      next if all_records_exist?(:posts, personal_topic_ids)
+
+      create_posts(personal_topics, total: total_personal_topics, offset: offset) do |pt|
+        user_id = user_id_from_imported_user_id(pt["mt_starter_id"]) || -1
+
+        user_ids = [pt["mt_to_member_id"]] + pt["mt_invited_members"].scan(/i:(\d+);/).flatten.map(&:to_i)
+        user_ids.map! { |id| user_id_from_imported_user_id(id) }
+        user_ids.compact!
+        user_ids.uniq!
+
+        {
+          archetype: Archetype.private_message,
+          id: "pt-#{pt["id"]}",
+          created_at: Time.zone.at(pt["mt_date"]),
+          title: CGI.unescapeHTML(pt["mt_title"]),
+          user_id: user_id,
+          target_usernames: User.where(id: user_ids).pluck(:username),
+          raw: clean_up(pt["msg_post"], user_id),
+        }
+      end
+    end
+  end
+
+  def import_personal_posts
+    puts "", "importing personal posts..."
+
+    last_personal_post_id = -1
+    total_personal_posts = mysql_query("SELECT COUNT(*) count FROM message_posts WHERE msg_is_first_post = 0").first["count"]
+
+    batches(BATCH_SIZE) do |offset|
+      personal_posts = mysql_query(<<~SQL
+        SELECT msg_id id
+             , msg_topic_id
+             , msg_date
+             , msg_post
+             , msg_author_id
+          FROM message_posts
+         WHERE msg_is_first_post = 0
+           AND msg_id > #{last_personal_post_id}
+         ORDER BY msg_id
+         LIMIT #{BATCH_SIZE}
+      SQL
+      ).to_a
+
+      break if personal_posts.empty?
+
+      last_personal_post_id = personal_posts[-1]["id"]
+      personal_post_ids = personal_posts.map { |pp| "pp-#{pp["id"]}" }
+
+      next if all_records_exist?(:posts, personal_post_ids)
+
+      create_posts(personal_posts, total: total_personal_posts, offset: offset) do |pp|
+        next unless t = topic_lookup_from_imported_post_id("pt-#{pp["msg_topic_id"]}")
+        user_id = user_id_from_imported_user_id(pp["msg_author_id"]) || -1
+
+        {
+          id: "pp-#{pp["id"]}",
+          topic_id: t[:topic_id],
+          created_at: Time.zone.at(pp["msg_date"]),
+          raw: clean_up(pp["msg_post"], user_id),
+          user_id: user_id,
+        }
+      end
+    end
+  end
+
+  def clean_up(raw, user_id = -1)
+    raw.gsub!(/<(.+)>&nbsp;<\/\1>/, "\n\n")
+
+    doc = Nokogiri::HTML.fragment(raw)
+
+    doc.css("blockquote.ipsBlockquote").each do |bq|
+      post_id = post_id_from_imported_post_id(bq["data-cid"])
+      if post = Post.find_by(id: post_id)
+        bq.replace %{<p>[quote="#{post.user.username},post:#{post.post_number},topic:#{post.topic_id}"]\n#{bq.inner_html}\n[/quote]</p>}
+      end
+    end
+
+    markdown = ReverseMarkdown.convert(doc.to_html)
+
+    markdown.gsub!(/\[attachment=(\d+):.+\]/) do
+      if a = mysql_query("SELECT attach_file, attach_location FROM attachments WHERE attach_id = #{$1}").first
+        path = File.join(UPLOADS_DIR, a["attach_location"])
+        if File.exists?(path)
+          begin
+            upload = create_upload(user_id, path, a["attach_file"])
+            return html_for_upload(upload, a["attach_file"]) if upload.persisted?
+          rescue
+          end
+        end
+      end
+    end
+
+    markdown
+  end
+
+  def mysql_query(sql)
+    @client.query(sql)
+  end
+
+end
+
+ImportScripts::IPBoard3.new.perform