DuoLines - Interlinear Dual Language Translator & Creator for Web Pages

What is DuoLines?

DuoLines is an innovative interlinear dual-language translator designed to revolutionize Bilingual Reading. Whether you are using our Chrome Extension for browsing web pages or our Standalone Desktop App for reading offline documents on Windows 11 and Linux, DuoLines makes language comprehension natural.

Our tool intelligently analyzes web text and injects line-by-line translations directly beneath the original words. By displaying two languages interlinearly, it turns everyday reading into an active language learning experience—perfect for polyglots, students, and avid readers.

Universal Compatibility: Optimized for standard HTML web pages in browsers (Chrome, Edge, Brave), as well as local document processing on Windows Desktop and Linux.

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DuoLines in Action

Web Page Extension

Desktop Document Reader

Supported Platforms & Formats

Google Chrome & Chromium: The ultimate environment for our web-page translator extension. Read any article instantly. Mozilla Firefox: Full support for the extension to render bilingual text securely. Microsoft Edge: Built-in compatibility for interlinear translation while browsing. News Sites & Blogs: Automatically detects article structures on sites like Medium, Wikipedia, and more. Offline Documents (Desktop App): Use the DuoLines Desktop client to import and generate interlinear texts from local files. TXT & HTML Imports: Convert your own learning materials into parallel bilingual formats locally.

Key Features

Interlinear Translation

Automatically align translated text directly underneath the original text on any web page for intuitive context-based learning.

Focus & Privacy

Your reading history and local files are processed entirely on your machine. We value your privacy.

Customizable Layout

Personalize your reading experience. Adjust font sizes, colors, and line spacing to perfectly separate the primary and secondary languages.

🌍 Supported Languages

"af": "Afrikaans", "sq": "Albanian (Shqip)", "am": "Amharic (አማርኛ)", "ar": "Arabic (العربية)", "hy": "Armenian (Հայերեն)", "as": "Assamese (অसमীয়া)", "ay": "Aymara (Aymar aru)", "az": "Azerbaijani (Azərbaycan)", "bm": "Bamanankan", "eu": "Basque (Euskara)", "be": "Belarusian (Беларуская)", "bn": "Bengali (বাংলা)", "bho": "Bhojpuri (भोजपुरी)", "bs": "Bosnian (Bosanski)", "bg": "Bulgarian (Български)", "ca": "Catalan (Català)", "ceb": "Cebuano", "zh-CN": "Chinese Simp (简体中文)", "zh-TW": "Chinese Trad (繁體中文)", "co": "Corsican (Corse)", "hr": "Croatian (Hrvatski)", "cs": "Czech (Čeština)", "da": "Danish (Dansk)", "dv": "Divehi (Dhivehi)", "doi": "Dogri (डोगри)", "nl": "Dutch (Nederlands)", "en": "English", "eo": "Esperanto", "et": "Estonian (Eesti)", "ee": "Ewe (Eʋegbe)", "fil": "Filipino", "fi": "Finnish (Suomi)", "fr": "French (Français)", "fy": "Frisian (Frysk)", "gl": "Galician (Galego)", "ka": "Georgian (ქართული)", "de": "German (Deutsch)", "el": "Greek (Ελληνικά)", "gn": "Guarani (Avañe'ẽ)", "gu": "Gujarati (ગુજરાતી)", "ht": "Haitian Creole (Kreyòl ayisyen)", "ha": "Hausa", "haw": "Hawaiian (ʻŌlelo Hawaiʻi)", "he": "Hebrew (עברית)", "hi": "Hindi (हिन्दी)", "hmn": "Hmong (Hmoob)", "hu": "Hungarian (Magyar)", "is": "Icelandic (Íслеenska)", "ig": "Igbo", "ilo": "Ilocano", "id": "Indonesian (Indonesia)", "ga": "Irish (Gaeilge)", "it": "Italian (Italiano)", "ja": "Japanese (日本語)", "jv": "Javanese (Jawa)", "kn": "Kannada (ಕನ್ನಡ)", "kk": "Kazakh (Qazaq)", "km": "Khmer (ខ្мែរ)", "rw": "Kinyarwanda", "ko": "Korean (한국어)", "kri": "Krio", "ku": "Kurdish (Kurdî)", "ky": "Kyrgyz (Кыргызча)", "lo": "Lao (ລາວ)", "la": "Latin (Latina)", "lv": "Latvian (Latviešu)", "ln": "Lingala", "lt": "Lithuanian (Lietuvių)", "lg": "Luganda", "lb": "Luxembourgish (Lëtzebuergesch)", "mk": "Macedonian (Македонски)", "mai": "Maithili (मैथिली)", "mg": "Malagasy", "ms": "Malay (Melayu)", "ml": "Malayalam (മലയാളം)", "mt": "Maltese (Malti)", "mi": "Maori (Māori)", "mr": "Marathi (मраठी)", "mni-Mtei": "Meiteilon (Manipuri)", "lus": "Mizo", "mn": "Mongolian (Монгол)", "my": "Myanmar (Burmese)", "ne": "Nepali (नेपाली)", "no": "Norwegian (Norsk)", "ny": "Nyanja (Chichewa)", "or": "Odia (Oriya)", "om": "Oromo (Oromoo)", "ps": "Pashto (پښتو)", "fa": "Persian (فارسی)", "pl": "Polish (Polski)", "pt": "Portuguese (Português)", "pa": "Punjabi (ਪੰਜਾਬੀ)", "qu": "Quechua", "ro": "Romanian (Română)", "ru": "Russian (Русский)", "sm": "Samoan", "sa": "Sanskrit (संस्कृतम्)", "gd": "Scots Gaelic (Gàidhlig)", "nso": "Sepedi", "sr": "Serbian (Српски)", "st": "Sesotho", "sn": "Shona (ChiShona)", "sd": "Sindhi (سنڌي)", "si": "Sinhala (සිංහල)", "sk": "Slovak (Slovenčina)", "sl": "Slovenian (Slovenščina)", "so": "Somali (Soomaali)", "es": "Spanish (Español)", "su": "Sundanese (Basa Sunda)", "sw": "Swahili (Kiswahili)", "sv": "Swedish (Svenska)", "tg": "Tajik (Тоҷикӣ)", "ta": "Tamil (தமிழ்)", "tt": "Tatar (Tatarça)", "te": "Telugu (తెలుగు)", "th": "Thai (ไทย)", "ti": "Tigrinya (ትግርኛ)", "ts": "Tsonga (Xitsonga)", "tr": "Turkish (Türkçe)", "tk": "Turkmen (Türkmençe)", "ak": "Twi", "uk": "Ukrainian (Українська)", "ur": "Urdu (اردو)", "ug": "Uyghur (ئۇيغۇرჩە)", "uz": "Uzbek (Oʻzbek)", "vi": "Vietnamese (Tiếng Việt)", "cy": "Welsh (Cymраеg)", "xh": "Xhosa (isiXhosa)", "yi": "Yiddish (ייִדיш)", "yo": "Yoruba (Èdè Yorùbá)", "zu": "Zulu (isiZulu)"

Installation

Official Stores

Now available in the Chrome Web Store.

DuoLines official store

DuoSub official store

Desktop App DuoSub

Portable Standalone Versions

Full-featured desktop client for all your subtitle needs. No installation required.

DuoLines Interlinear Translator for Web Pages