The Best 100 Thesaurus.com Alternatives

  • QwickUp icon

    QwickUp

    Access all your favorite dictionaries and other lookup services in one place. Firefox and Chrome extension are available to easily select and lookup any text in web pages.

    Free Web Firefox

  • Lion (LEO dictionary) icon

    Lion (LEO dictionary)

    Lion allows you to send a query to the German-English, -French, -Spanish and -Italian LEO dictionaries (Chinese is currently not supported) with a click of your mouse from almost all MS Windows applications.

    Free Personal Windows Android iPhone Blackberry Windows Phone HP webOS S60

  • Glosbe icon

    Glosbe

    Huge collaborative massively multilingual dictionary.

    Free Personal Web

  • xFarDic icon

    xFarDic

    xFarDic is a comprehensive multilingual dictionary developed using GTK2, wxWidgets, libxml2, under GNU/Linux and relesed under GNU/GPL. It can be installed and used in different RPM and Debian based distros.

    Free Open Source Linux

  • purple icon

    purple

    Dictionary from the Elementary project.

    Free Open Source Linux

  • VerbAce icon

    VerbAce

    VerbAce-Pro is an easy-to-use Desktop Translation Software. Translate in a mouse click From any application Access Wikipedia Quick translation option by moving the cursor

    Freemium Windows Android

  • Babiloo icon

    Babiloo

    Babiloo is a free open source software developed to read offline dictionaries. * Runs on most of the platforms, Windows, Linux, MacOS, Nokia S60 (>1.9). * Supports dictionaries in SDictionary, and StarDict formats.

    Free Open Source Mac OS X Windows Linux

  • gKamus icon

    gKamus

    gKamus is a dictionary program, it translates single English word to it's Indonesian means and vice-versa, it's also equipped with fancy English Tenses, English Irregular Verb Tables and English Alphabet List.

    Free Open Source Linux

  • ImTranslator icon

    ImTranslator

    ImTranslator provides the access to online translation powered by Babylon, Google, Microsoft and other translation engines for over 66 languages.

    Free Mac OS X Windows Linux Firefox

  • Translate Shell icon

    Translate Shell

    Translate Shell (formerly Google Translate CLI) is a command-line translator powered by Google Translate (default), Bing Translator, Yandex.Translate and Apertium.

    Free Open Source Mac OS X Windows Linux

  • Mate Translate icon

    Mate Translate

    Looking for an easy and fun to use language translator app? Then download Mate Translate today.

    Freemium

  • Visuwords icon

    Visuwords

    The fun and free way to look up definitions. THE graphical dictionary and visual thesaurus. We love words.

    Free Web

  • Ultralingua icon

    Ultralingua

    At Ultralingua, we make software for people who love languages. We focus on high quality consumer applications for mobile devices, and offer our linguistic APIs to partners in a variety of fields.

    Freemium Mac OS X Windows Android iPhone Android Tablet iPad Web

  • Define icon

    Define

    Define is the fastest and most lightweight dictionary application you have ever seen on iOS! Define relies only on the internal dictionary Apple hides inside your iOS device. No need to be constantly reliant on an internet connection.

    Free Open Source iPhone iPad

  • Dilmanc icon

    Dilmanc

    Dilmanac is a mobile and online language translator.

    Free Windows Android Android Tablet Web Wine

  • MDict icon

    MDict

    MDict is a multi-platform open dictionary. It doesn't have built-in datas but use database convert/built by other users. Features: There are many dictionary databases available, including wikipedia.You can built your own database.

    Free Windows Android iPhone iPad Windows Mobile

  • SDL FreeTranslation icon

    SDL FreeTranslation

    SDL is the worlds number 1 provider of free and professional language translation services for websites and documents. Translate from English to Spanish, French, German...

    Free Web