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JavaScript ProjectsSoftware Projects

Language Translator App (Source Code)

Language translator is a program that is used to translate text into multiple languages like Nepali, Hindi, Spanish, etc. In my language translator app, users can easily translate text into different languages, copy translated text, and convert text to speech. It is similar to Google Translate.

Language Translator App in JavaScript [Source Codes]

To build this Language Translator App in JavaScript. First, you need to create four Files: HTML, CSS & JavaScript Files. After creating these files just paste the given codes into your file. You can also download the source code files of this translator app from the below download button and I also recommend you to download the source codes files.

First, create an HTML file with the name index.html and paste the given codes into your HTML file. Remember, you’ve to create a file with .html extension.

<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">  
    <title>Language Translator</title>
    <link rel="stylesheet" href="style.css">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- Font Awesome CDN Link for Icons -->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css"/>
  </head>
  <body>
    <div class="container">
      <div class="wrapper">
        <div class="text-input">
          <textarea spellcheck="false" class="from-text" placeholder="Enter text"></textarea>
          <textarea spellcheck="false" readonly disabled class="to-text" placeholder="Translation"></textarea>
        </div>
        <ul class="controls">
          <li class="row from">
            <div class="icons">
              <i id="from" class="fas fa-volume-up"></i>
              <i id="from" class="fas fa-copy"></i>
            </div>
            <select></select>
          </li>
          <li class="exchange"><i class="fas fa-exchange-alt"></i></li>
          <li class="row to">
            <select></select>
            <div class="icons">
              <i id="to" class="fas fa-volume-up"></i>
              <i id="to" class="fas fa-copy"></i>
            </div>
          </li>
        </ul>
      </div>
      <button>Translate Text</button>
    </div>

    <script src="js/countries.js"></script>
    <script src="js/script.js"></script>

  </body>
</html>

Second, create a CSS file with the name of style.css and paste the given codes in your CSS file. Remember, you’ve to create a file with .css extension.

/* Import Google Font - Poppins */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}
body{
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  min-height: 100vh;
  background: #5372F0;
}
.container{
  max-width: 690px;
  width: 100%;
  padding: 30px;
  background: #fff;
  border-radius: 7px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.01);
}
.wrapper{
  border-radius: 5px;
  border: 1px solid #ccc;
}
.wrapper .text-input{
  display: flex;
  border-bottom: 1px solid #ccc;
}
.text-input .to-text{
  border-radius: 0px;
  border-left: 1px solid #ccc;
}
.text-input textarea{
  height: 250px;
  width: 100%;
  border: none;
  outline: none;
  resize: none;
  background: none;
  font-size: 18px;
  padding: 10px 15px;
  border-radius: 5px;
}
.text-input textarea::placeholder{
  color: #b7b6b6;
}
.controls, li, .icons, .icons i{
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.controls{
  list-style: none;
  padding: 12px 15px;
}
.controls .row .icons{
  width: 38%;
}
.controls .row .icons i{
  width: 50px;
  color: #adadad;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.2s ease;
  justify-content: center;
}
.controls .row.from .icons{
  padding-right: 15px;
  border-right: 1px solid #ccc;
}
.controls .row.to .icons{
  padding-left: 15px;
  border-left: 1px solid #ccc;
}
.controls .row select{
  color: #333;
  border: none;
  outline: none;
  font-size: 18px;
  background: none;
  padding-left: 5px;
}
.text-input textarea::-webkit-scrollbar{
  width: 4px;
}
.controls .row select::-webkit-scrollbar{
  width: 8px;
}
.text-input textarea::-webkit-scrollbar-track,
.controls .row select::-webkit-scrollbar-track{
  background: #fff;
}
.text-input textarea::-webkit-scrollbar-thumb{
  background: #ddd;
  border-radius: 8px;
}
.controls .row select::-webkit-scrollbar-thumb{
  background: #999;
  border-radius: 8px;
  border-right: 2px solid #ffffff;
}
.controls .exchange{
  color: #adadad;
  cursor: pointer;
  font-size: 16px;
  transition: transform 0.2s ease;
}
.controls i:active{
  transform: scale(0.9);
}
.container button{
  width: 100%;
  padding: 14px;
  outline: none;
  border: none;
  color: #fff;
  cursor: pointer;
  margin-top: 20px;
  font-size: 17px;
  border-radius: 5px;
  background: #5372F0;
}

@media (max-width: 660px){
  .container{
    padding: 20px;
  }
  .wrapper .text-input{
    flex-direction: column;
  }
  .text-input .to-text{
    border-left: 0px;
    border-top: 1px solid #ccc;
  }
  .text-input textarea{
    height: 200px;
  }
  .controls .row .icons{
    display: none;
  }
  .container button{
    padding: 13px;
    font-size: 16px;
  }
  .controls .row select{
    font-size: 16px;
  }
  .controls .exchange{
    font-size: 14px;
  }
}

Third, create a JavaScript file with the name of countries.js and paste the given codes in your JavaScript file. Remember, you’ve to create a file with .js extension. In this file, we’re storing supported countries as an object.

const countries = {
    "am-ET": "Amharic",
    "ar-SA": "Arabic",
    "be-BY": "Bielarus",
    "bem-ZM": "Bemba",
    "bi-VU": "Bislama",
    "bjs-BB": "Bajan",
    "bn-IN": "Bengali",
    "bo-CN": "Tibetan",
    "br-FR": "Breton",
    "bs-BA": "Bosnian",
    "ca-ES": "Catalan",
    "cop-EG": "Coptic",
    "cs-CZ": "Czech",
    "cy-GB": "Welsh",
    "da-DK": "Danish",
    "dz-BT": "Dzongkha",
    "de-DE": "German",
    "dv-MV": "Maldivian",
    "el-GR": "Greek",
    "en-GB": "English",
    "es-ES": "Spanish",
    "et-EE": "Estonian",
    "eu-ES": "Basque",
    "fa-IR": "Persian",
    "fi-FI": "Finnish",
    "fn-FNG": "Fanagalo",
    "fo-FO": "Faroese",
    "fr-FR": "French",
    "gl-ES": "Galician",
    "gu-IN": "Gujarati",
    "ha-NE": "Hausa",
    "he-IL": "Hebrew",
    "hi-IN": "Hindi",
    "hr-HR": "Croatian",
    "hu-HU": "Hungarian",
    "id-ID": "Indonesian",
    "is-IS": "Icelandic",
    "it-IT": "Italian",
    "ja-JP": "Japanese",
    "kk-KZ": "Kazakh",
    "km-KM": "Khmer",
    "kn-IN": "Kannada",
    "ko-KR": "Korean",
    "ku-TR": "Kurdish",
    "ky-KG": "Kyrgyz",
    "la-VA": "Latin",
    "lo-LA": "Lao",
    "lv-LV": "Latvian",
    "men-SL": "Mende",
    "mg-MG": "Malagasy",
    "mi-NZ": "Maori",
    "ms-MY": "Malay",
    "mt-MT": "Maltese",
    "my-MM": "Burmese",
    "ne-NP": "Nepali",
    "niu-NU": "Niuean",
    "nl-NL": "Dutch",
    "no-NO": "Norwegian",
    "ny-MW": "Nyanja",
    "ur-PK": "Pakistani",
    "pau-PW": "Palauan",
    "pa-IN": "Panjabi",
    "ps-PK": "Pashto",
    "pis-SB": "Pijin",
    "pl-PL": "Polish",
    "pt-PT": "Portuguese",
    "rn-BI": "Kirundi",
    "ro-RO": "Romanian",
    "ru-RU": "Russian",
    "sg-CF": "Sango",
    "si-LK": "Sinhala",
    "sk-SK": "Slovak",
    "sm-WS": "Samoan",
    "sn-ZW": "Shona",
    "so-SO": "Somali",
    "sq-AL": "Albanian",
    "sr-RS": "Serbian",
    "sv-SE": "Swedish",
    "sw-SZ": "Swahili",
    "ta-LK": "Tamil",
    "te-IN": "Telugu",
    "tet-TL": "Tetum",
    "tg-TJ": "Tajik",
    "th-TH": "Thai",
    "ti-TI": "Tigrinya",
    "tk-TM": "Turkmen",
    "tl-PH": "Tagalog",
    "tn-BW": "Tswana",
    "to-TO": "Tongan",
    "tr-TR": "Turkish",
    "uk-UA": "Ukrainian",
    "uz-UZ": "Uzbek",
    "vi-VN": "Vietnamese",
    "wo-SN": "Wolof",
    "xh-ZA": "Xhosa",
    "yi-YD": "Yiddish",
    "zu-ZA": "Zulu"
}

Last, create a JavaScript file with the name of script.js and paste the given codes in your JavaScript file. Remember, you’ve to create a file with .js extension.

const fromText = document.querySelector(".from-text"),
toText = document.querySelector(".to-text"),
exchageIcon = document.querySelector(".exchange"),
selectTag = document.querySelectorAll("select"),
icons = document.querySelectorAll(".row i");
translateBtn = document.querySelector("button"),

selectTag.forEach((tag, id) => {
    for (let country_code in countries) {
        let selected = id == 0 ? country_code == "en-GB" ? "selected" : "" : country_code == "hi-IN" ? "selected" : "";
        let option = `<option ${selected} value="${country_code}">${countries[country_code]}</option>`;
        tag.insertAdjacentHTML("beforeend", option);
    }
});

exchageIcon.addEventListener("click", () => {
    let tempText = fromText.value,
    tempLang = selectTag[0].value;
    fromText.value = toText.value;
    toText.value = tempText;
    selectTag[0].value = selectTag[1].value;
    selectTag[1].value = tempLang;
});

fromText.addEventListener("keyup", () => {
    if(!fromText.value) {
        toText.value = "";
    }
});

translateBtn.addEventListener("click", () => {
    let text = fromText.value.trim(),
    translateFrom = selectTag[0].value,
    translateTo = selectTag[1].value;
    if(!text) return;
    toText.setAttribute("placeholder", "Translating...");
    let apiUrl = `https://api.mymemory.translated.net/get?q=${text}&langpair=${translateFrom}|${translateTo}`;
    fetch(apiUrl).then(res => res.json()).then(data => {
        toText.value = data.responseData.translatedText;
        data.matches.forEach(data => {
            if(data.id === 0) {
                toText.value = data.translation;
            }
        });
        toText.setAttribute("placeholder", "Translation");
    });
});

icons.forEach(icon => {
    icon.addEventListener("click", ({target}) => {
        if(!fromText.value || !toText.value) return;
        if(target.classList.contains("fa-copy")) {
            if(target.id == "from") {
                navigator.clipboard.writeText(fromText.value);
            } else {
                navigator.clipboard.writeText(toText.value);
            }
        } else {
            let utterance;
            if(target.id == "from") {
                utterance = new SpeechSynthesisUtterance(fromText.value);
                utterance.lang = selectTag[0].value;
            } else {
                utterance = new SpeechSynthesisUtterance(toText.value);
                utterance.lang = selectTag[1].value;
            }
            speechSynthesis.speak(utterance);
        }
    });
});

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