offline.translator

What Happens on Your Screen, Stays on Your Device.

# offline.translator Features offline.translator is built for people who want to read foreign-language webpages without sending page content to a third-party translation service. It keeps the controls in a side panel, translates on device, and lets you improve difficult passages when you need more accurate wording. ## Quick Start 1. Open a normal `http` or `https` webpage. 2. Open the extension side panel. 3. Choose the language you are reading from and the language you want to read in. 4. Start translation. 5. If you want better wording for difficult material, use `Optimize` or enable `Auto Optimize Translation`. Important: If you want to use Gemini Nano Optimization, first enable `chrome://flags/#prompt-api-for-gemini-nano` in Chrome, then relaunch the browser. ## Main Features ### 1. On-device webpage translation The extension translates webpage text with Chrome's built-in Translator API. This means the core reading experience stays local to your browser instead of routing your page through a separate developer-hosted translation server. Why this helps: - Better privacy for sensitive reading. - Fast translation on pages you already have open. - A cleaner reading flow because the controls stay in the side panel, not on top of the page. ### 2. Gemini Nano Optimization for harder content Some pages need more than literal translation. Professional articles, technical writing, research posts, financial analysis, and other dense material often read better after a second pass. Gemini Nano Optimization can post-edit the initial translation to improve: - clarity - tone - wording accuracy - readability for specialized articles This is especially useful when the first pass is understandable but still feels awkward, too literal, or not natural enough for serious reading. Important: Optimization is optional. Basic translation can still work without it, but optimization requires `#prompt-api-for-gemini-nano` to be enabled. ### 3. View Source Segment When you hover translated text, you can inspect the original source sentence context beside the cursor. Why this helps: - You can quickly compare the original and translated sentence. - It is easier to judge whether a difficult sentence was translated correctly. - It is useful when reading professional or academic material and you want more confidence in the meaning. ### 4. Glossary support (coming soon) The extension can preserve approved terms during translation. This is helpful for product names, brand names, technical terms, or vocabulary that should stay consistent. Why this helps: - Important terminology stays stable across a page. - Specialized writing becomes easier to follow. - Hover inspection works better because the original term and translated result are easier to compare. ### 5. Safer local-first reading offline.translator is designed for local processing. User settings are stored in the browser, and translated results can be reused locally to improve repeat reading sessions. Why this helps: - Better privacy for work documents, technical articles, and other sensitive material. - Less need to resend the same reading content again and again. - A more trustworthy experience for users who want local control. ## Best Way to Use It For casual reading: - Open the page. - Translate it in the side panel. - Scroll as needed if more content loads later. For professional articles: - Start with the normal translation. - Turn on Gemini Nano Optimization for better wording. - Use View Source Segment on passages that feel important or ambiguous. - Keep glossary support enabled if certain terms should stay consistent. For privacy-sensitive reading: - Use the extension on normal web pages. - Keep the workflow inside Chrome's built-in on-device AI features. - Use optimization only after enabling the Prompt API flag locally in your browser. ## When Optimization Is Worth Turning On Optimization is most valuable when you are reading: - technical documentation - research articles - legal or policy text - financial or business analysis - expert blog posts In these cases, a better second pass can make the translated article feel more natural and more precise. ## Reminder About Gemini Nano Before using Optimization, open: `chrome://flags/#prompt-api-for-gemini-nano` Enable the flag, relaunch Chrome, and then return to the extension. # offline.translator 功能说明 offline.translator 面向希望在不将网页内容发送至第三方翻译服务的前提下阅读外语网页的用户。该扩展将控制界面置于侧边栏，在本地完成翻译，并在需要更高准确性时支持对复杂段落进行优化。 ## 快速开始 1. 打开任意 `http` 或 `https` 网页 2. 打开扩展侧边栏 3. 选择源语言和目标语言 4. 开始翻译 5. 如需更优表达，可使用 `Optimize` 或启用 `Auto Optimize Translation` **重要提示：** 如需使用 Gemini Nano 优化功能，请先在 Chrome 中启用： `chrome://flags/#prompt-api-for-gemini-nano` 然后重启浏览器。 --- ## 核心功能 ### 1. 本地网页翻译 扩展基于 Chrome 内置的 Translator API 进行翻译。这意味着整个阅读过程在本地完成，无需将网页内容发送至开发者服务器。 **优势：** - 提升隐私保护，适合敏感内容阅读 - 翻译速度快，直接处理当前页面 - 操作集中在侧边栏，不干扰页面阅读 --- ### 2. 面向复杂内容的 Gemini Nano 优化 部分内容仅靠直译难以达到理想效果，例如专业文章、技术文档、研究内容或金融分析等。 Gemini Nano 优化可对初始翻译进行二次润色，从而提升： - 表达清晰度 - 语气自然度 - 用词准确性 - 专业内容的可读性 适用于：译文可理解但仍显生硬、不自然或过于字面化的情况。 **重要提示：** 优化功能为可选项，基础翻译无需开启。但使用优化需启用 `#prompt-api-for-gemini-nano`。 --- ### 3. 查看原文片段（View Source Segment） 将鼠标悬停在译文上时，可查看对应的原文句子上下文。 **优势：** - 快速对照原文与译文 - 更容易判断复杂句是否准确 - 提高阅读专业或学术内容时的理解信心 --- ### 4. 术语表支持（即将推出） 扩展将支持在翻译过程中保留指定术语，例如产品名、品牌名或专业术语。 **优势：** - 关键术语在整页中保持一致 - 提升专业内容的连贯性 - 便于原文与译文对照理解 --- ### 5. 本地优先的安全阅读体验 offline.translator 以本地处理为核心设计。用户设置存储在浏览器中，翻译结果可本地复用。 **优势：** - 提高对工作文档和敏感内容的隐私保护 - 减少重复翻译请求 - 提供更可控、更可信的使用体验 --- ## 推荐使用方式 ### 日常阅读 - 打开网页 - 在侧边栏进行翻译 - 页面加载更多内容时继续滚动阅读 ### 专业内容阅读 - 先进行基础翻译 - 启用 Gemini Nano 优化提升表达 - 对关键或存疑段落使用原文查看功能 - 启用术语表以保证术语一致性 ### 隐私敏感场景 - 在普通网页中使用扩展 - 全程依赖 Chrome 本地 AI 能力 - 仅在本地启用 Prompt API 后使用优化功能 --- ## 何时建议启用优化 在以下内容类型中，优化效果最明显： - 技术文档 - 学术研究文章 - 法律或政策文本 - 金融或商业分析 - 专业博客内容 在这些场景下，二次优化可显著提升译文的自然度与准确性。 --- ## Gemini Nano 使用提醒 在使用优化功能前，请打开： `chrome://flags/#prompt-api-for-gemini-nano` 启用该选项并重启 Chrome 后，再返回扩展使用相关功能。