diff --git a/aucor-polylang-translation-mapper.php b/aucor-polylang-translation-mapper.php
new file mode 100644
index 0000000..51c4766
--- /dev/null
+++ b/aucor-polylang-translation-mapper.php
@@ -0,0 +1,165 @@
+<?php
+/*
+Plugin Name: Aucor - Polylang Translation Mapper
+Plugin URI: 
+Version: 1.0
+Author: Aucor Oy
+Author URI: http://www.aucor.fi/
+Description: Connects translations of posts with same master ID
+License: GPLv2 or later
+License URI: http://www.gnu.org/licenses/gpl-2.0.html
+Text Domain: aucor-polylang-translation-mapper
+*/
+
+defined( 'ABSPATH' ) or die( 'Get out of here stalker!' );
+
+class AucorTranslationMapper {
+
+	private $updated;
+	private $ignored;
+	private $admin_notice;
+
+	private $plugin_name;
+	private $plugin_slug;
+	private $post_type;    // edit me below
+	private $meta_key;     // edit me below
+
+	/**
+	 * Constructor
+	 */
+
+	public function __construct() {
+
+		$this->plugin_name = 'Aucor: Polylang Translation Mapper';
+		$this->plugin_slug = 'aucor-polylang-translation-mapper';
+
+		$this->post_type = 'post'; // post type
+		$this->meta_key = 'master_id'; // "master id" that all translations share
+
+		$this->updated = 0;
+		$this->ignored = 0;
+
+		if (defined('DOING_AJAX') && DOING_AJAX) {
+			return; // don't mess up ajax calls
+		}
+
+		add_action('admin_init', array(&$this, 'iterate'));
+		add_action('admin_notices', array(&$this, 'admin_notice'));
+
+	}
+
+	/**
+	 * Iterate
+	 */
+
+	function iterate() {
+
+		$used_master_ids = array();
+
+		if( isset($_GET[ $this->plugin_slug ]) ) {
+
+			$paged = ($_GET[ $this->plugin_slug . '-p' ]) ? $_GET[ $this->plugin_slug . '-p' ] : 1; // Paged because running too many posts at a time causes memory overflow
+
+			$args = array( 
+				'post_type' => $this->post_type,
+				'posts_per_page' => 50, // Make me less if PHP can't handle it
+				'paged' => $paged,
+				'orderby' => 'title',
+				'order' => 'DESC',
+				'lang' => '',
+				'post_status' => 'any',
+				'meta_query' => array(
+					array(
+						'key' => $this->meta_key,
+						'compare' => 'EXISTS'
+					),
+				)
+			);
+
+			$query = new WP_Query( $args );
+			$max_num_pages = $query->max_num_pages;
+
+			while ( $query->have_posts() ) : $query->the_post();
+
+				$master_id = get_post_meta( $query->post->ID, $this->meta_key, true );
+				$translations = pll_get_post_translations( $query->post->ID );
+
+				if(in_array($master_id, $used_master_ids)) {
+					continue; // already linked, skip
+				}
+
+				$args_sub = array( 
+					'post_type' => $this->post_type,
+					'posts_per_page' => -1,
+					'no_found_rows' => true,
+					'lang' => '',
+					'post_status' => 'any',
+					'meta_query' => array(
+						array(
+							'key' => $this->meta_key,
+							'compare' => '=',
+							'value' => $master_id
+						),
+					)
+				);
+				$sub_query = new WP_Query( $args_sub );
+				while ( $sub_query->have_posts() ) : $sub_query->the_post();
+
+					$translations[ pll_get_post_language( $sub_query->post->ID ) ] = $sub_query->post->ID;
+
+				endwhile;
+				wp_reset_query();
+
+				if(!empty($translations)) {
+					pll_save_post_translations($translations);
+					$this->updated++;
+				}
+
+				array_push($used_master_ids, $master_id); // Doesn't carry to the next page but it's only small optimization
+
+			endwhile;
+			wp_reset_query();
+
+			$this->admin_notice = 'In this step: ' . $this->updated . ' translation connections made';
+
+			$next_page = ($paged < $max_num_pages) ? $paged + 1 : null;
+
+			if(!empty($next_page)) {
+				$full_url = "//$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
+				$full_url = str_replace($this->plugin_slug . '-p=' . $paged, $this->plugin_slug . '-p=' . $next_page, $full_url);
+				$this->admin_notice .= '<a class="button" style="margin:-.15rem 0 .25rem .25rem" href="' . $full_url . '">Continue (step ' . $next_page . '/' . $max_num_pages . ')</a>';
+			} else {
+				$this->admin_notice .= '<br /><br />Done! You should deactivate and remove me now!';
+			}
+
+		} else {
+
+			$full_url = "//$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
+			$full_url .= (strpos($full_url, '?') === false) ? '?' : '&';
+			$full_url .= $this->plugin_slug . '=start&' . $this->plugin_slug . '-p=1';
+			
+			$this->admin_notice = '<p>Post type: <b>' . $this->post_type . '</b><br />';
+			$this->admin_notice .= 'Master meta key: <b>' . $this->meta_key . '</b></p>';
+			$this->admin_notice .= '<p>Take a backup of your database. There is no return.</p>';
+			$this->admin_notice .= '<a class="button" href="' . $full_url . '">Start connecting translations</a>';
+
+		}
+	}
+
+	/**
+	 * Admin message displayer
+	 */
+
+	function admin_notice() {
+			?>
+			<div class="updated">
+				<p><b><?php echo $this->plugin_name; ?></b><br />
+				<?php echo $this->admin_notice; ?>
+				</p>
+			</div>
+		<?php
+	}
+
+}
+
+add_action('plugins_loaded', create_function('', 'global $aucor_translation_mapper; $aucor_translation_mapper = new AucorTranslationMapper();'));
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..f737a6f
--- /dev/null
+++ b/index.php
@@ -0,0 +1,2 @@
+<?php
+// say nothing...
\ No newline at end of file
diff --git a/readme.md b/readme.md
new file mode 100755
index 0000000..3f8453c
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,52 @@
+# Aucor: Polylang Translation Mapper
+
+**Contributors:** [Teemu Suoranta](https://github.com/TeemuSuoranta)
+
+**Tags:** polylang, translations, import, mapper
+
+**License:** GPLv2 or later
+
+## Description
+
+This is a tool that helps you connect all imported posts as translations for the multilingual WordPress plugin [Polylang](https://wordpress.org/plugins/polylang/).
+
+
+Requirements for the plugin:
+
+ * Posts should have a language (you can set them when importing for example with WP All Import)
+ * Translations have a unique identifier key in post_meta
+
+
+**Take backup of your database before doing this! Use at your own risk.**
+
+
+## Installation
+
+How-to use:
+
+ * Import your content with WP All Import Pro (or something else) and check that requirements above are met
+ * Take a backup of your database
+ * Download plugin and activate (you will need Polylang active)
+ * You will see UI in admin notice that shows you the post type and meta_id
+ * If post type or master id are incorrect, change them in the code (lines 36 and 37)
+ * Click the button "Start connecting translations"
+ * Click through steps (50 posts at a time). Each step will take some time.
+ * Deactivate and delete plugin when you have gone through all the steps
+
+
+## Issues and feature whishlist
+
+**Issues:**
+
+(No known issues, yet)
+
+ **Feature whishlist:**
+
+ * Maybe a UI to select post type and master_id
+ * Show total updated instead of count for step
+
+
+## Changelog
+
+### 0.1.0 - Github launch
+ * It's working
\ No newline at end of file