翻译助手 Translate Assistant

隐私政策 / Privacy Policy

生效日期 2026-10-26 · 适用版本 1.2.1(Chrome 扩展)· 开发者 DreamOfXM

一句话:翻译全部在你的设备上完成。 我们不收集、不上传、不存储你的任何文本——选中的文字、网页正文、输入框里的草稿,都只在你的浏览器里处理。

一、我们处理哪些数据,在哪里处理

扩展的唯一用途是翻译。下列数据只在你的设备内存中处理,处理完即释放,不会发送到任何服务器,也不会写入我们的存储(我们没有这样的存储):

翻译引擎有两套,都在本地运行:浏览器自带的端上翻译模型(Chrome 138+ 且该语言方向可用时优先),以及扩展内置的 bergamot-translator WebAssembly 引擎。两者的推理过程都不联网。

二、唯一的网络请求

为了让离线翻译可用,扩展需要下载语言包。这是本扩展唯一的网络行为:

目标storage.googleapis.com(Mozilla 公开的翻译模型仓库)
内容模型、词表、字符模型等数据文件,以及一份模型清单
是否携带你的数据否。请求使用 credentials: 'omit',不包含你的文本、cookie 或账号信息
触发方式仅在你于「语言包管理」页面主动点击下载时发起;自动更新不会在后台偷偷进行
完整性下载后按 SHA-256 校验,损坏的文件会被丢弃并重下

下载回来的语言包保存在你本机的浏览器存储里,可以随时在设置页删除。

三、本地存储了什么

扩展使用 chrome.storage.local 保存以下配置,它们不会离开你的设备:

卸载扩展会一并删除上述数据与已下载的语言包。

四、权限及其用途

扩展申请的每一项权限都只服务于「翻译」这一个用途:

权限用途
storage保存界面语言、功能开关和语言包记录
contextMenus右键菜单中的「翻译选中文本」入口
offscreenManifest V3 的 Service Worker 不能创建 Web Worker,翻译引擎(WASM)需要在离屏文档中运行
所有网站的内容脚本
(content script)
翻译发生在你正在看的页面上:读取正文段落用于插入译文,在网页输入框中写回译文。不读取与你当前操作无关的数据,不记录浏览历史
storage.googleapis.com
(主机权限)
仅用于下载语言包

五、我们明确不做的事

本扩展对数据的处理符合 Chrome 应用商店用户数据政策的「有限使用(Limited Use)」要求:数据仅用于提供和改进用户当前可见的单一功能。

六、数据保留与删除

我们不保留任何用户数据,因为我们从不接收。你设备上的数据由你完全掌控:

七、儿童

本扩展不是面向儿童设计的产品,也不会有意收集儿童信息——事实上它不收集任何人的信息。

八、政策变更

若未来功能变化导致本政策需要调整,我们会更新本页并修改顶部生效日期;涉及数据处理方式的实质性变化会在扩展更新说明中写明。

九、联系方式

对本政策或数据处理有任何疑问,可以通过以下方式联系:


Privacy Policy

Effective 2026-10-26 · Version 1.2.1 (Chrome extension) · Developer DreamOfXM

In one sentence: translation happens entirely on your device. We do not collect, upload or store any of your text — selected text, page content and input drafts never leave your browser.

1. What we process, and where

The extension has a single purpose: translation. The following data is processed only in your device's memory and is released afterwards. It is never sent to any server, and no copy is written to any storage of ours (we operate no such storage):

Both translation engines run locally: Chrome's on-device model (preferred on Chrome 138+ when the language pair is available) and the bundled bergamot-translator WebAssembly engine. Neither performs inference over the network.

2. The only network request

To enable offline translation the extension downloads language packs. This is the extension's only network activity:

Endpointstorage.googleapis.com (Mozilla's public translation model repository)
PayloadModel, vocabulary and character model data files, plus a model index
Carries your data?No. Requests use credentials: 'omit' and contain no user text, cookies or account information
TriggerOnly when you press download on the Pack manager page; no silent background updates
IntegrityDownloads are verified with SHA-256; damaged files are discarded and re-fetched

Packs are stored in your own browser storage and can be deleted at any time from the options page.

3. What is stored locally

The extension stores configuration in chrome.storage.local, which never leaves your device: interface language, feature toggles, and records of installed language packs (direction, size, checksum, install time). Uninstalling the extension removes this data and the downloaded packs.

4. Permissions and why they are needed

PermissionPurpose
storagePersist UI language, toggles and pack records
contextMenusRight-click "Translate selection" entry
offscreenManifest V3 service workers cannot create Web Workers; the WASM engine must run in an offscreen document
Content script on all sitesTranslation happens on the page you are viewing: reading paragraphs to insert translations, and writing a translation back into page input fields. Nothing unrelated is read and no browsing history is recorded
storage.googleapis.com
(host permission)
Language pack download only

5. What we do not do

This handling complies with the Chrome Web Store User Data Policy's Limited Use requirements: data is used solely to provide the single, user-facing feature.

6. Retention and deletion

We retain no user data because we never receive any. Everything on your device is under your control: delete a pack in the options page to reclaim space, or clear the extension's storage / uninstall the extension to remove all local data immediately.

7. Children

The extension is not directed at children and does not knowingly collect information from anyone — it collects no information at all.

8. Changes

If a future change requires an update to this policy, this page and the effective date above will be updated; material changes to data handling will be noted in the extension's release notes.

9. Contact