Frhelper

Frhelper, the world-leading cross-platform translation software, supports translation by selecting words. Frhelper is an AI-era translation tool powered by large language models, making translation intelligent and efficient. This powerful browser extension supports translating selected text, side-by-side paragraph translation, bilingual video subtitles, and document translation for PDF and other popular formats. It aims to provide a convenient translation experience. Users can also choose their own translation engines and use advanced models such as 欧路AI and DeepSeek to obtain accurate translations quickly. The extension also syncs learning records with the Frhelper client to provide personalized learning support. == What's new == [26.9.0] - Improved translation display on some websites - Fixed subtitles not being segmented on some YouTube videos [26.7.0] - Added bilingual subtitle support for more popular video websites - Added word lookup in translated video subtitles - Added outline styling for video subtitles - Fixed two selection-translation windows appearing in NetEase Mail [26.4.0] - Improved translation display on websites such as X.com - Fixed garbled output from SiliconFlow AI models - Fixed saved phrases appearing unsaved when selected again after translation - Fixed the source language reverting to “Auto” when translating selected text with the sidebar open [26.3.1] - Improved loading speed in the selection-translation pop-up - Fixed automatic pronunciation for selected text being in English - Fixed subtitle issues on some YouTube videos [26.3.0] - Added a blur display option for YouTube subtitles - Added separate font size controls for original and translated YouTube subtitles - Fixed spaces disappearing between words in original YouTube subtitles - Fixed incorrect positioning of YouTube subtitles anchored to the bottom - Fixed an “Unavailable” message in the context section of selection translation [26.2.0] - Kept the word lookup pop-up within view when a page is zoomed in - Added lookup for multiple selected words in YouTube subtitles - Fixed subtitles not being segmented on some YouTube videos - Fixed non-bottom-anchored subtitles shifting when the YouTube progress bar appears or disappears [26.1.1] - Added automatic detection of the target language for input-box translation - Added rules for disabling the extension on web pages - Added a guide for users who have newly installed the extension - Improved loading speed for highlighted key words - Improved translation display on some websites - Fixed an “Unavailable” message in the context section of selection translation - Fixed input-box translation not working on reddit - Fixed translation styles not switching for Google Gemini and DeepSeek AI [25.12.1] - Added the option to always translate or highlight web pages in selected languages - Added import, export, and cloud sync for extension settings - Added a setting for the extension's display language - Added keyboard shortcut activation for selection translation - Added an option to mark words as mastered in the highlighted-word explanation window - Improved access speed in Asia; users can switch connections when the network is slow - Improved translation display on some websites - Fixed word lookup failing on certain pages when intelligent context translation was enabled - Fixed multiple blank lines appearing on pages when automatic line wrapping for long paragraph translations was enabled - Fixed the translation feature navigating away from the page [25.11.1] - Added the option to always translate or highlight web pages in selected languages - Added import, export, and cloud sync for extension settings - Added a setting for the extension's display language - Added keyboard shortcut activation for selection translation - Added an option to mark words as mastered in the highlighted-word explanation window - Improved access speed in Asia; users can switch connections when the network is slow - Improved translation display on some websites - Fixed word lookup failing on certain pages when intelligent context translation was enabled - Fixed multiple blank lines appearing on pages when automatic line wrapping for long paragraph translations was enabled [25.9.1] - Added free use of SiliconFlow and Zhipu AI models - Added translation models including Tencent Hunyuan, Doubao, and Kimi - Added double-click word lookup in the selection pop-up and sidebar - Added translation for the WhatsApp input box - Improved translation on some websites - Fixed the paragraph translation shortcut failing to switch back to the original text - Fixed repeated paragraph translation when highlighting key words - Fixed the option for users outside China to select the Google Translate engine [25.8.1] - Added free use of the Zhipu GLM-4-Flash model - Added intelligent context translation for more accurate paragraph translations - Added a vocabulary list menu to the selection pop-up and sidebar - Added a transparent translation style - Improved translation on some websites - Fixed translation display in Chrome dark mode [25.7.0] - Added a dictionary sidebar - Added support for vocabulary lists synced in the mobile app - Added system audio capture for simultaneous interpretation, with faster real-time translation - Fixed missing YouTube subtitles for some users - Fixed word lookup display in the dark theme - Fixed note images not appearing in word lookup [2.1.1] - Fixed double-click word lookup not working - Fixed missing YouTube subtitles for some users - Added custom interface theme colors - Added the option to press Shift again to hide paragraph translations - Added streaming output for translation results - Added drag positioning for the YouTube subtitle box - Limited highlighting of the same key word to three times per page - Improved website translation compatibility [2.1.0] - Fixed missing YouTube subtitles for some users - Added custom interface theme colors - Added the option to press Shift again to hide paragraph translations - Added streaming output for translation results - Added drag positioning for the YouTube subtitle box - Limited highlighting of the same key word to three times per page - Improved website translation compatibility [2.0.9] - Added custom interface theme colors - Added the option to press Shift again to hide paragraph translations - Added streaming output for translation results - Added drag positioning for the YouTube subtitle box - Limited highlighting of the same key word to three times per page - Improved website translation compatibility - Fixed missing YouTube subtitles for some users [2.0.9] - Added custom interface theme colors - Added the option to press Shift again to hide paragraph translations - Added streaming output for translation results - Added drag positioning for the YouTube subtitle box - Limited highlighting of the same key word to three times per page - Improved website translation compatibility - Fixed missing YouTube subtitles for some users [2.0.7] - Added an option to ignore mastered words when highlighting vocabulary-list words - Added concise definitions to the right of highlighted words - Improved translation of text containing HTML elements - Improved the concise explanation window for highlighted words - Reduced memory usage during translation [2.0.4] - Added a translation-only display mode for web pages - Added direct note editing in the word definition pop-up - Added direct export of document translations in docx, pptx, and xlsx formats - Added custom pronunciation engines for reading original and translated documents aloud - Improved translation on YouTube, X, arXiv, and other websites - Improved sentence segmentation in YouTube video subtitles - Fixed definitions always appearing when key words were highlighted [2.0.1] - Added custom third-party large language models as translation engines - Added DeepSeek V3 as a translation engine - Added a new PDF translation engine with side-by-side and immersive reading - Added document translation for formats including Epub and docx - Added display of the thinking process when using the DeepSeek R1 model - Added support for local Ollama models as translation engines - Improved website translation compatibility [2.0.0] - Added custom third-party large language models as translation engines - Added DeepSeek V3 as a translation engine - Added a new PDF translation engine with side-by-side and immersive reading - Added document translation for formats including Epub and docx - Improved website translation compatibility [1.4.0] - Added custom prompt styles [1.3.1] - Added support for more third-party translation models - Improved website compatibility [1.3.0] - Added support for the latest gpt-4o-mini model [1.2.8] - Added single-tap word lookup when using the extension on a phone [1.2.5] - Updated third-party translation engines [1.2.2] - Added translation engines including NiuTrans, GPT-4o, and Deepseek - Added individual on/off controls for video translation by website - Added automatic pronunciation for key words - Added selection translation in the PDF reader [1.2.1] - Integrated AI context into AI explanations [1.1.9] - Added “Context” to selection lookup for better understanding of context (free for a limited time) [1.1.6] - Added split-screen PDF translation - Added translation of scanned PDF files - Improved PDF reading - Allowed custom addresses for AI translation engines [1.1.5] - Added split-screen PDF translation - Added translation of scanned PDF files [1.1.2] - Added highlighting of words from vocabulary-list groups as key words - Added YouTube subtitle style and font size settings [1.1.0] - Added a word lookup box - Added selection lookup on PDF pages - Added a shortcut to add words to a vocabulary list - Added Apple ID sign-in - Added night mode [1.0.7] - Added YouTube subtitle support - Added custom translation shortcuts - Added a quick way to turn off paragraph translation - Added a text-selection icon - Improved PDF translation - Added a default vocabulary list setting == Main extension features == 📰 Web page translation - Translate web pages quickly with one click and compare original and translated paragraphs side by side; - Select unfamiliar words to view definitions and use AI context analysis to understand them accurately; - Highlight key words according to your chosen vocabulary level to help build vocabulary; - Translate input-box contents with configurable target languages, separators, and trigger keys. 🎞 Video subtitle translation - Automatically generate bilingual subtitles on major online video platforms such as YouTube and Bilibili; - Select unfamiliar subtitle words to view definitions and use AI context analysis to understand them accurately. 📚 Online text translation - Translate in real time across major languages worldwide to support accessible cross-language communication; - Customize terminology lists to match domain-specific usage and meet professional translation needs. 📃 Free PDF document translation - Display original and translated text side by side in an immersive layout for reading academic papers, technical manuals, and more; - Customize translation font, color, and other styles for a personalized reading interface; - Export bilingual translated documents with one click for later saving, sharing, and use. 💡 Custom translation engines and styles - Use several advanced large language model engines and configure your own API KEY. Understand complex texts deeply and redefine the boundaries of intelligent translation; - Choose from built-in official translation styles, including conversational, formal, and paragraph-by-paragraph analysis, or customize translation style prompts.