Foreign Language Translation Browser Apps and Extensions

Use these tools to quickly translate text to and from other languages

The web is full of non-English content, and there are plenty of free browser apps and extensions that provide translations, definitions, and dialect assistance to help people access content in other languages.

We've listed some of the best below, available for Chrome and Firefox and sorted alphabetically.

Google Translate

Man using google translate plugin on laptop


What We Like
  • Supports over 50 languages.

  • Translate selected text rather than an entire page.

What We Don't Like
  • Translations are occasionally imperfect.

  • Crowdsourced and statistical machine translations produce awkward results.

Google Translate is a Chrome extension that quickly translates words or blocks of text. Simply highlighting or right-click the text to get a translation. Full pages can also be translated by selecting the extension's toolbar button, located to the right of the Chrome address bar. It even has full integration with Gmail, Google's email platform.

Duolingo on the Web

What We Like
  • A very popular language learning site.

  • Interface is fun and simple.

What We Don't Like
  • Web app is a link to the Duolingo website.

  • Distracting ads in the free version.

Intended to teach you English, French, German, Italian, Portuguese, Spanish or one of half a dozen other languages, Duolingo on the web is a Chrome app that is essentially a shortcut to the Duolingo home page. Translations are displayed by simply hovering over predesignated words, phrases, and sentences. As you progress through the training program, you can gain XP (Experience Points) and work toward daily targets to stay on track. You are also given the option to compete against other users for added motivation and bragging rights.

Google Input Tools

Google Plus logo
What We Like
  • More features than simple translations.

  • Transliteration; type in a foreign language.

What We Don't Like
  • A bit buggy at times.

  • Rough translations and transliterations.

The Google Input Tools Chrome extension provides virtual keyboards to allow you to type in almost any language, easily accessible with just a click of the mouse. It also offers character conversion into other languages (transliteration) as well as handwriting input for touch-screen devices.


Official Firefox logo.


What We Like
  • See where the hosting server you're visiting is located.

  • Translates sites with Google Translate.

What We Don't Like
  • Limited uses for the average person.

  • Few translation and language specific features.

A user favorite for many years now, the Flagfox extension for Firefox displays the country's flag where the server hosting the active web page resides. Integrated with Geotool, which narrows down the location even further, Flagfox offers a diverse feature set including diagnostic tools, security validations, as well as automatic translation of the current page into the language of your choice.

Readlang Web Reader

Stack of index cards on a black background
Douglas Sacha / Getty Images
What We Like
  • In-line translations on websites.

  • Translations are easy to see and read.

  • Flashcard language learning tools.

What We Don't Like
  • Extension can break website layout and display.

  • Doesn't translate multiple words, phrases, or sentences at once.

The Readlang Web Reader Chrome extension is not only a handy translator but also an excellent companion for learning a new language. The tool shows a word in the language of your choice either directly above the word that you click on or replacing it all together based on your settings. Readlang creates flashcards and relevant word lists to help accelerate the learning process. In addition, the extension allows you to change the source and destination language selections from a conveniently placed menu in the upper right-hand corner, and also offers easy access to a dictionary.


Internally illuminated sign of city name Tokyo in kanji or traditional Chinese characters
DigiPub / Getty Images
What We Like
  • Robust information offered in translation pop-ups.

  • Designate a hot key to display pop-ups.

What We Don't Like
  • Pop-up definition window gets in the way.

  • Slight disparity in features and functions between Chrome and Firefox versions.

The Rikaikun Chrome extension provides instant translation of Japanese words just by hovering your mouse pointer. The tool can be toggled on and off via a custom toolbar button. It also offers information about the first Kanji in the chosen word.


What We Like
  • Text-to-speech option.

  • Reverse translate option.

  • Translate a word by clicking it or hovering over it.

What We Don't Like
  • Key press options are limited and may interfere with Chrome shortcuts.

  • Text-to-speech isn't perfect for some languages.

The TransOver Chrome extension automatically translates a word into or from one of the dozens of available languages, activated by clicking on a word (the default behavior) or hovering your mouse cursor once that feature is enabled. Optional text-to-speech functionality is also included, as well as configurable hotkeys and user-defined translation time delays. You are also given the ability to disable translation on certain websites.

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