Bookmarklet to export Leo Trainer words to an Anki deck.

Leo-Anki.js

/**
 * This bookmarklet makes it possible to transfer words from Leo Trainer to Anki.
 * It only works for fr-de translations. Contact me for other languages.
 * 
 * Prerequisites:
 * - a Leo account (http://www.leo.org/) with a few words saved in the trainer
 * - an Anki account (https://ankiweb.net/account/register)
 * 
 * 1. Crunch the following code and add it to your bookmarks http://ted.mielczarek.org/code/mozilla/bookmarklet.html
 * 2. Run the bookmarklet on this page https://dict.leo.org/trainer/manageFolder.php?lp=frde&lang=de
 * 3. Import the downloaded file in Anki using \t as field separator and allowing HTML in fields
 **/

function extractVocabulary() {
  var output = [];
  var matches = document.body.querySelectorAll('.tblf2 > tbody > tr');

  for (var index = 0; index < matches.length; index++) {
    let item = matches[index];
    output.push([
      item.querySelector('td[lang=en]').innerHTML, 
      item.querySelector('td[lang=de]').innerHTML,
    ]);
  }
  
  return output;
}

function downloadTsvFile(filename, content) {
  var tsv = content.reduce(function(acc, cur) {
    return acc + cur.join('\t') + '\n';
  }, "");
  
  var a = document.createElement('a');
  a.setAttribute('href', 'data:text/tab-separated-values;charset=utf-8,' + encodeURIComponent(tsv));
  a.setAttribute('download', filename);
  document.body.appendChild(a);
  a.click();
}

var manageFolderUrl = 'https://dict.leo.org/trainer/manageFolder.php?lp=ende&lang=de';
if (location != manageFolderUrl)
  location = manageFolderUrl;
else
  downloadTsvFile('vokabeln.csv', extractVocabulary());