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38 ratings

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Learn vocabulary in a new language effortlessly while browsing the web.

Vocabulary is an essential part of the language learning process. Until now, you could use vocabulary cards or dedicated apps to do so. That works. But it requires a lot of dedication and planning. With Lexios, we enable you to learn vocabulary effortlessly while browsing the web. Scientific research clearly shows the advantages of this approach. That's what we base our service on. Start now! ► Install the Browser Extension ► Choose the language you want to learn and your base language (the one you browse the web) ► Select your current level in your target language (the one you want to learn) ► Choose the amount of words that shall be translated per webpage ► Use the pronunciation feature to hear the word ► Select websites where you don't want to see any translations Supported Base Languages: English, German, French Supported Target Languages: English, German, French, Spanish, Portuguese More languages will follow soon. Your data privacy is critical to us. We only collect essential data that helps us understand how Lexios is functioning and improve our service for you. Therefore, we anonymize your data. We do not share any data outside Lexios.

4.6 out of 538 ratings

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meriFeb 22, 2024

It's a good and clever tool, but the translations are sometimes wrong. I notice that it tends to replace verbs with their noun equivalents; this doesn't often make a difference in English, but is noticeable in French. Otherwise, pretty helpful as long as you're willing to put a little effort into reading things more carefully.

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Ashuman ChauhanSep 27, 2021

This is great, and it seems swifter than some of the other, similar addons. Muchas gracias!

1 out of 2 found this helpful
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Robert PlattAug 26, 2021

Useful extension, good for passively increasing vocabulary and can set it to whatever CEFR level you desire. Contextual based translations need some work, hence why not 5 stars, but for a free extension is great. Can easily browse for 6hrs in a day and not break the 500 word cap.

2 out of 2 found this helpful
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Nicolas ZimmermannDeveloperAug 26, 2021

Hi Robert, thanks for the review! Actually removed the 500 word cap and the premium. Will be leaving Lexios entierely free to use, I just have to update the website to reflect that but the extension has already seen these restrictions removed! :)


  • Version
  • Updated
    August 12, 2021
  • Size
  • Languages
    4 languages
  • Developer
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


Lexios has disclosed the following information regarding the collection and usage of your data.

Lexios handles the following:

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This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes


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