Privacy Policy — Bookmark Rewind

Last updated: 2026-09-26 · Publisher: Number & Reason (Hangzhou) Digital Technology Co Ltd (数与理（杭州）数字科技有限公司)

Summary: your bookmark backups stay on your device. If you turn on sync, your bookmarks go only to the WebDAV storage you choose. We run no servers and receive no data.

• What it reads. Your bookmarks (titles, addresses and folders), in order to save versions of them and to restore or sync them.
• Where backups are stored. In your browser's local extension storage (IndexedDB) on this device, compressed. You choose how many versions to keep and the storage limit.
• Sync (optional, off by default). If you enter a WebDAV address, the extension sends your bookmarks to that address and reads them back from it. It asks for permission to contact that one address when you press Connect. Nothing is sent anywhere else. Your WebDAV provider's own privacy policy applies to what is stored there.
• Your WebDAV username and password are stored unencrypted in this browser's extension storage on this device, and are sent only to the WebDAV address you entered. We recommend an app password when your provider offers one. Plain http is allowed only for addresses on this computer or your local network.
• No tracking. The extension contains no analytics, tracking or advertising code and makes no other network requests.
• Export and import. A bookmark file is written only when you press Export, and read only when you choose a file to import.
• Your control. You can delete the sync settings at any time; uninstalling the extension removes all backups and settings from this device. Files you synced remain in your own WebDAV storage until you delete them there.
• Third parties. No data is transferred to us or to any third party other than the WebDAV provider you chose yourself.
• Children. The extension is not directed at children and collects no data from anyone.
• Changes. If this policy changes, the new version will be published at this address with a new date.
• Contact. jileilei@shuyuli.cn

隐私政策（中文）

书签备份只保存在你的设备上；开启同步后，书签只发往你自己选择的 WebDAV 存储。我们不运营服务器，不接收任何数据。扩展读取你的书签（标题、网址、文件夹）以保存版本、找回或同步；备份压缩后保存在本机浏览器的扩展存储（IndexedDB）里，保留份数和上限由你设置。同步默认关闭：填写 WebDAV 地址并点“连接”时，扩展只申请访问这一个地址，书签只在你和该地址之间传输，存放在那里的数据适用你的 WebDAV 服务商的隐私政策。WebDAV 用户名和密码以未加密形式保存在本机浏览器的扩展存储里，只发往你填写的地址；建议使用应用密码；明文 http 只允许本机或局域网地址。扩展不含统计、追踪或广告代码，不发起其他网络请求；只有你点“导出”才写文件、选择文件时才导入。卸载即删除本机的全部备份和设置；已同步到你自己 WebDAV 里的文件需在那里删除。联系：jileilei@shuyuli.cn