Lexios. Enrich your vocabulary in a language by browsing the web

Last updated on 12 May 2026

Lexios is a brilliant idea that will allow you tonaturally enrich your vocabulary in a foreign language while you are browsing the web.

Vocabulary is an important step in the process of learning a language. Apps are available to make things easier for you and to replace the old wordbook that used to be used. Learn a language by watching a movie, improve your vocabulary by listening to songs, Create an English word book by watching a YouTube video, the offer is important. Lexios is an additional alternative. Its great strength lies in its ability to integrate naturally into your daily life through the pages you regularly visit on the web.

An extension to enrich your vocabulary in a foreign language

Lexios is a Swiss idea in the form ofan extension for your browser. Once this one installs the magic operates. When you visit a web page, certain words in the text appear in the target language. The language you learn. This contextualization of words makes it possible to better understand and memorize them.

When you click on a word, a small box pops up with the translation and type of the word. You can also listen to a synthesis voice with one click and read it out loud. The word will be offered to you several times during your navigation. The system is based on spaced repetition. The tool shows the same words at increasingly long intervals. So, after seeing a word about 16 times (according to which word), it should be learned. You also have the option of a click to reduce the learning time by indicating that the word is acquired.

A Proven Method to Enrich Vocabulary in a Language

Lexios relies on scientific studies to argue thatusing Lexios retention during learning is up to 50 % higher than with traditional vocabulary tables. I have not seen these studies, but the system I have been testing for several days is efficient and smart. Learning is a natural part of your day-to-day life. You feel like you are learning effortlessly.

From French you can learn vocabulary in four languages: English, German, Spanish and Portuguese. Other languages should follow. When using the extension for the first time, you will have to indicate the target language and the level you think you have: beginner or advanced. Lexios will thus be able to adapt the difficulty of the proposed words. You can also choose the number of words to translate per page. It is also possible to completely disable the extension on some of them.

A good idea and a powerful tool to enable you to expand your vocabulary almost without realising it.

Lexios is an ad-free extension. Installation and use are completely free. What are you waiting for to try it.

Lexios is part of the 2021 list of the best tools of the year. Discover the other winners.